Delphi dbgrid cell click. From the question it's not clear.
Delphi dbgrid cell click how to keep track of selected rows with dgRowSelect = False. By clicking “Post Your Answer”, How to highlight a DBGrid cell? 0. [Persons]( [P_ID] [int] Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. ) I General Notes. When user clicks on a button (caption := '+') MoveRowPlus is called with parameters: Grid, ARow(row where button is) and stRow(number of rows that need to be inserted under ARow). Then, in your DBGrid's Options, set dgEditing to True. var Cell: TGridCoord; Cell := MyDBGrid. (I tried it successfully using paradox). ID - DESCRIPTION Is it possible to Word Wrap DBgrid Cell (height) in Delphi (xe) ? I have a dbgrid with multiple columns with a fixed Column width and some columuns has up to 100char and I need them to fit the appropriate Cell without changing the Occurs when focus moves to a new cell in the grid. X field can be used directly to set the grid's active column. when I modify the value using OnDrawColumnCell Data is getting over lapped when I click on that column and the same is working fine in Delphi 7. Is able to display multiline wordwrap column titles, checkboxs for boolean fields, a convenient select of records from the keyboard and mouse via checkboxs, extanded Indicator column, fixing of columns, an opportunity to exclude insert and delete of records in the DBGrid, own standard PopupMenu, save/restore Notice that the check box is initially hidden and that the program handles several events of the DBGrid control. GetBookmarkIDs, what you need to do is: Save your current position in the grid (CDS1. When drawing the image from a TImageList on the canvas in the DBGridDrawColumnCell procedure, I need the background of the image (the same color as the pixel in the lower left corner) to take on transparency. Thanks for any help afforded. Thus, every time I change the font style I need to redefine the value for RowHeight[0]. The TGridCoord. x >= FIndicatorOffset) and fires off click events, have it fire TitleClick(nil) or something if cell. Columns[1]. I can see the data and I can edit it. Map that back to the row and column and again check that against the current selection. (Yeah, sort of a hack, but I can't think of an easier way to do it. Dbgrid1. Delphi / C++ Builder - Set active/selected row color in TDBGrid. delphi dbgrid drawing cell image black background. Write an OnCellClick event handler to take specific action when the user clicks in one of the cells of the data-aware grid. To update the drawing, simpy update the contents of the container as needed and then Invalidate() the grid to trigger a delphi; cell; dbgrid; Share. You have available the row and column. This one is a much better solution that the others and on them there was a mistype on procedures TStringGrid. Grid1GetValue(Sender: TObject; const Col, Row: Integer; var Value: TValue); begin if Row > (Length(DataArr)-1) then exit; case Col of 0: Value By clicking “Post Your Answer”, DBGrid get selected cell. Occurs when the user releases the mouse in one of the cells of the grid. +1. Here's all I did to set it up: Click File->New-VCL Forms Application from the IDE's main menu. – jetty. DBGrid Highlighting the located row via You can test if a specific cell has a control or not by querying the control item of that cell in the ControlCollection collection. Refresh DBGrid from another form in delphi. If you set the dgEditing to true (for the Options of the DBGrid in the Object Inspector), this will let the user edit at any time. DBGrid get selected cell. NOTE: This does not exactly correspond to a "click" since it occurs in response to the initial mouse down event, rather than reliably I'm wondering how I can select the specific WebID value in my DBGrid for the record which is double clicked? For example if they clicked anywhere in the row of WebID 2, I have a variable to store the number 2. Focus moves to a cell when . Context help system Custom multiline editor Support for BiDiMode property X-DBGrid Component 2. BtnClick(nbEdit); When the user clicks 'Edit', I want the text in the selected cell (just the text - not the whole cell) to be highlighted - as if ready to be overwritten; whereas when I do . I have setup an OnTitleClick event that sorts the DBGrid by the column when the title is clicked. StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer; Rect: @Tofig: There is a hack you can use for not redeclaring all your components. I have a button to add Click on your TTable, Hi Since few days,i am trying to solve one problem, but still now not suscess I have a TDBGrid: DBGrid1, i want to create runtime cotext menu by right mouse click on the grid cell. To take action The SimulateClick simulates a click on a cell of the grid. When I use the object insector to add items to the Columns property of the grid, they do not all of them show up at run time. Handle the OnDrawColumnCell event of the grid, in it call DefaultDrawColumnCell if the cell you are asked to draw is not one in the boolean column, draw the icon on the grid canvas if it is in your special column. We activate a PopUp on a dbGrid event "onTitleClick" that will save, restore or exclude columns for users customize the grid layout. Commented Aug 23, 2022 at 16:05. Options:=DBGrid. how to color DBGrid special cell? 0. Ask Question Asked 4 years, 5 months ago. 8k 6 6 FDQuery, right click and select Fields Editor. By clicking on the button, the pdf viewer linked to the pdf extension should open the link of the file contained in its cell. I'm a newbie into Delphi and i need an advice. but after selecting the multiple records when i click on the selected records of grid for dragging, all selected records I have my DBgrid connected via TDataSource and Firedac TFDQuery. So then how can I simulate to look of row select by highlighting the all the cell of the current row? I am new to delphi and I am creating a database for customers and I am able to populate their details in a dbgrid by Viewcustomers button. Instead of that I would use the inbuild feature of the dbgrid. To take action when the user clicks down on the mouse, use the OnColEnter event. DBGrid1TitleClick(Column: TColumn); var I: Integer; begin //Prevent multiple clicks! My intention is to click on the registered e-mail and the software via the ShellExecute open a window to send the e-mail. SetFocus, I get the combo box arrow below, which isn't sufficiently highlighted for me. 29. Delphi navigate through the TDBGrid using the TAB. BtnClick(nbEdit); The user clicks the mouse button down in the cell. Applications cannot directly call CellClick. Since both datasets will point to same data, you can change values in cloned dataset, and that data will show in dbGrid without tampering with dbGrids dataset. 4 (November 25, 2001). How i can save cell color for all clicked cells? //Complicated by the fact that I do not know much about Delphi Thanks! As you have found, the Click events are typically associated with left-mouse button actions. (See Fig. Simple source code please PS: I use Delphi 2010. To add buttons to a DBGrid, you really need a more flexible DBGrid. Hint when hovering with the mouse on a cell? 1. Write an OnColEnter event handler to take specific action when a new cell has just been selected. Something like: Search by : "test" In DBGrid, returned data would be . Description. Columns property in the Object Inspector. procedure TForm1. Color DBGrid on CellClick event Thread starter MLNorton; Start date May 20, 2012; Status Not open for further replies. Note that I compare the cell's row with the strnggrid's row; I can't check the cell state for selected since only cell of the selected row is selected. A DBGrid is just a visual representation of the data. Recno),mt Informatio n,[mbOK],0); Table1 is the dataset refered by the dbgrid each time you click the dbgrid then there will be window pop up shows the number of record selected. I want to display a long string in a string grid cell in a wordwrap format and found the following code to do so: procedure TForm1. Delphi: how to find and format DBGrid field. That's why your painting gets over-drawn. The user navigates to the cell using the keyboard. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. When I right-click it, the popup menu is shown (if assigned), and on MenuItemClick I can easily read the row and col currently selected. When the user clicks the ellipsis, I popup a TColorDialog for the user to choose a color. Type ='Button'; end; procedure TSimpleLinkCell. mbRight then. Follow edited Sep 21, 2022 at 6:49. Finally, comment out or disable your BeforeScroll handler, save and run your program. I may be looking at things simplistically, but in TGrid I did not find any function that can get me a cell value based on its (row,col). VEEPROG did ask a question: >How do i retrieve a cell value in a DbGrid? I think it is not a must to use row-number and column-number of a DBGrid-cell to get the cell-value. I would like to highlight the items matching the search criteria. In Delphi is there a nice clean way of determin By clicking “Post Your Answer”, Browse other questions tagged . Now, click once in some cell in your DBGrid that contains a value which it's ok to change. Using the OnDrawColumnCell event: 1) The following code will work if DBGrid has the option dgMultiSelect, if not, nothing happens: When I left-click a cell in a string grid, it gets selected, but not when I right-click it. Modified 8 years, 3 months ago. Now, suppose the size of the DESCRIPTION column is changed and no longer appear the words "GRID"; I would like to stay as well DBGRID. ) Delphi: dbgrid cell press enter to go next cell. This means my sort-order pop-up appears after column dragging. DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect; DataCol: Integer; Column: TColumn; State: TGridDrawState); const RowColors: array[Boolean] of TColor = You can color individual cells using the CellProperties property of the grid. How to modify a cell value in Delphi TDBGrid. @Uwe, that's true for field's DisplayWidth count of 0 chars, which is 6px wide each with Tahoma size 8 font (at default scaling). I hide the combo box (at present) on row changed of the upper grid but, when I click in column 1 of the newly refreshed lower grid, it shows Delphi 7 ADO, DBGrid combobox Theres's little infos for delphi 7 since It's too old. The Overflow Blog Your docs are your infrastructure. If rows had scrolled off the top would you want the nth visible row, or the nth row from the start of the dataset? I agree row number is a natural way to approach a grid, especially if you are used to dealing with non-data aware grids, but try to think "dataset", rather than "grid" and plan I implemented Steph DrawColumnCell example from the FAQ, which is great except I need the selected rows to stay colored! I have multiselect = True and can multiselect, but as soon as I select a 2nd row, the first row changes it's color back! Is there any way to color a row when selected and Second question is (still on the dbgrid) when I edit a column and double click on that column, the focus moves to the end of the text line therefor not showing the original text but only showing maybe the last character and spaces. Later that'll be extended to a customed TComboBox where multiple filters and ranges can be entered against each column, so I am building my own component, but it's all on the fly as its going into a TFrame which technically First, the grid (TGrid) doesn't store data so you need to provide a data storage like f. I have tried refresh, focus, focus cell on the history To add buttons to a DBGrid, you really need a more flexible DBGrid. unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Cl By clicking “Post Your Answer”, Modify DBGrid cell content before it is displayed. FieldName = order then Begin By clicking “Post Your Answer”, How to highlight a DBGrid cell? 0. 2 (March 21, 2001). Hot Network Questions I wanted to to the similar thing, but i was thinking if the dbgrid doesn't know the colmuns by name (for this case), maybe one else (speaking of components) does know it allready. The FDQuery knows the fields by name and by id. Colums[IndexOfColumn]. (It could be a solution for VEEPROG, but it couldn't be a solution for him) I think so, emil The grid contains various values and I would like to edit it when I click on a specific field. I'm not aware of a way to have the component do this for you. SetCellsAlignment the (-1 < Index) compare was correct, but then and else parts were swapped The correct version (this one) will show that when index is bigger than -1 it will overwrite value stored else it will add a new entry, @Lainkes - this is probably what you are after. DOUBLE clicking a cell once behaves like (1), double clicking thereafter always behaves like (2) Question Embarcadero: Delphi . Delphi. I am using Delphi 10. How to get the content of a cell on a DBGrid in Delphi by using the OnCellClick event With the OnCellCick(Column : TColumn) event of a DBGrid, it's easy to determine the column that's been clicked by using Column. Select Cell in TAdvStringGrid with hidden columns. DataSource. I guess that you actually want this: you want right-clicks to change the active cell as well as 'Directions' is a form array of booleans which 'remembers' which way each column is currently sorted (ascending or descending) so clicking the dbgrid's title bar a second time will cause the grid to be sorted in the opposing manner to which it was sorted before. By clicking “Post Your Answer”, How to get selected cells from TDBGrid in Delphi 5. but after selecting the multiple records when i click on the selected records of grid for dragging, all selected records The successor TDBGrid with the extended features. For example, if i right click on the DBGrid cell then it will check the value of the selected cell and if the value is true only then it will show the popup menu Embarcadero: Delphi . For example, when an entire row is selected, ChangingTMS DBAdvgrid cell value at runtime. You can also stop fighting so hard to do things in the DBGrid if you use the field's properties correctly; setting the field's Required property to true will allow Delphi to handle this for you automatically. There is a listbox with numbers from 0. Modified 4 years, 11 months ago. I have a delphi form with TFDConnection, TFDQuery, TDataSource and TDBGrid. Headers are the fields returned by the query. It is exposed as a protected method so that descendants can call the On CellClick event handler in response to It's not an error, it's how you've coded to create a new button in every paint event. while scrollbar should be start moving to down when I want to see (hidden or bottom) Items in the list. If you create a descendent component with the exact name that you are descending from but references the parent component including the unit name, you should with just adding that unit be able to continue without changing components. In this case you can use the OnMouseButtonDown event. How can I determine the row - record number Generates an On CellClick event. And every time you enter that field that you set . Welcome to Stack Overflow! You can find a comprehensive documentation of the TDBGrid component in Embarcadero's DocWiki. 4. CurrentRowSelected, but I cannot find a suitable place for checking my conditions to set it to True or False. Something like this: Delphi DBGrid can grant your users the ability to select multiple records from within a database grid. In order to place the button in the proper cell coordinate, you'll need to know the current row and the CellRect of the Cell that's being displayed. Commented Oct 21, 2015 at 12:50. (*) In a TDbGrid. Dataset. 2 and SQL Server 2008. This allows you to do more extensive validations after the basic character validation has been done. How to change color of dbgrid rows that have the same value on a field in delphi? for example all rows that have the same teacher note: By clicking “Post Your Answer”, Dynamic DBGrid Cell coloring. The rows in a DBGrid which are selected are recorded in bookmarks stored in its SelectedRows property. AsInteger = 0 then Background := clYellow; but in my case, user can define what value will have what color, that is stored on separate table. delphi - selecting a row in TdbGrid if i know the row's ID from the DB. Control) then I'm trying to display an empty text for a TDBGrid's cell without changing the field's value neither the backcolor of the cell. In Delphi is there a nice clean way of determin Right-click on the DBGrid, and choose Columns Editor, or click the ellipsis button on the DBGrid. How to show DBGrid. The code below reads and displays the Caption property of the Title. The problem is that dgEditing will not be enabled, so the button will not appear. selectedindex]. cxGrid hide column. ) You could put code in an event handler that adds the cell's row and column to a list that you keep of the rows and columns that are selected. How to get the content of a cell on a DBGrid in Delphi by using the OnCellClick event. It uses GetCellRect to get the coordinates (in the DBGrid) of the topleft of a specified cell and then calls TcxGridTableView is an unbound view and its columns are not bound to certain fields. DataSet. regards. The only thing left to do is specify the background color of the cells for any A DBGrid is just a visual representation of the data. Is it this ? Here's a sample app I just created in Delphi 2007 that demonstrates how to accomplish this. The 3 the combobox's position is maintained. In my Delphi application, I use lookup fields, but in unusual way. Drop a TClientDataSet, a TDataSource, and a TDBGrid on the form. SetCellsAlignment and TStringGrid. Oh, just set DBGrid readOnly: = True; Edited August 15, 2021 by sw4all I'm building a function: after searching a value in DBGrid, it can count how many value and mark those cells (change cells' color) change the cell color of a StringGrid when entering data in the cell. ControlCollection. 6. Detect which cell was clicked in TDBGrid when dgRowSelect is set to True? 0. Viewed 1k times 1 I am Delphi double click DBGrid to find field contents of row. (cell. The event receives the field being validated in the Sender parameter to the TFieldNotifyEvent: I am trying to change the color of a Title cell in a particular column of a DBGRID component in Delphi XE6. So the first step is to subclass the TDBGrid and expose some of its methods and properties (see the code block that follows). Featured on Meta How to disable particular check box cell in a DataGridView CheckBox column. DBGrid Highlighting the located row via code? 1. dfm add OnGetText = MyDataSetMyFieldGetText to the TMemoField (here named MyField) belonging to your data set (for example a TTable, here named MyDataSet); in the . Option. I have a 'Save' button that preforms quite a bit of unrelated processing but the first thing it does is. No action is taken. Columns[index] The following works in Delphi XE5 if you want a cell to display a button. Maybe OP wants to determine if a double click was performed over a certain node and/or column or over an empty space. When the grid needs data to show in a cell, it calls the OnGetValue() event:. 88. I am trying to make a frame with a DBGrid that will serve for more than 10 tables with half of its fields as defaults, and other fields exclusive for each table. The current cell's row number I've searched much already, and don't seem to get some clear way out, so far. New Options - dgAutoUnselectOff, dgExtendedSelect New properties - SelectionAnchor, DragRows I have written code to sort the grid by whichever column title I click following standard answers on SO. The current cell's column number 2. DBGrids. Hot Network Questions This avoids the need for a class helper and will work in Delphi versions which pre-date support for them. I have a grid of entries the user will click on to multi-select for a process. DevExpress engineers feature-complete Presentation Controls, IDE Productivity Tools, Business Application Frameworks, and Reporting Systems for Visual Studio, Delphi, HTML5 or iOS & Android development. Modified 4 years, which you do via the Fields Editor accessible from the pop-up menu by right-clicking the dataset component in the IDE. Now I have tow the problems: 1- if items count in my DBGrid is less, I shouldn't be have vertical scrollbar. I know about DBGrid. In my case i use a fdquery -> Datasource -> DBgrid connection. Is there a way in @Johan, not necessarily. X; I'm trying to programatically highlight the current cell in a TDBGrid descendant. SetFocus; DBNavigator. OnValidate event. Once the agent clicks on the "response" cell I want the highlighting to disappear and just have the standard background color. I need a DBGrid OnAfterCellClick. The stringgrid seems to ignore the Right-button click. Returns the control's docking information. FieldName='myfieldname' to, will highlight your button bold or non-bold. For now I only figured how to get grid coordinates: x = DBGrid. I don't think we've ever needed this option before, else I would have noticed how poor the default implementation is on Delphi's TDBGrid. With dbgrid, we can set some Column as read only DBGrid1. Right-click in the Columns Editor and choose Add all fields. With a pure OnDblClick you can track double clicking even outside nodes. I have a field called "Buttoncolour" which holds a hex colour in the form "CCFFCC". I found the following code: DBGrid. Example: I have 20 rows with 20 buttons. EDIT: I am using Delphi 2005 and I was mistaken on what I am using for the grid. I did not have any luck trying to set the individual DBGrid->Columns->Items[ii]->ReadOnly=false. Three factors affect the appearance of records displayed in a grid control: Existence of persistent column objects defined for the grid using the Columns editor. Muliple rows have some cells of the "Selected" colour and not all cells of the cselected row have the selected colour. AsString to the Text parameter of the OnGetText event, we tell Delphi to display ALL the text from the MEMO field in a DBGrid cell. Whether using WPF, ASP. If you were displaying, let's say a 100 of W chars (which is 10px wide each), the default column width would be 400px narrower than is actually needed (when the DisplayWidth would be 100). ReadOnly := True; By clicking “Post Your Answer”, ReadOnly TDBGrid/TwwDBGrid Cell in Delphi? 3. I want Ctrl-Click for single rows (which works OK; not great, but OK) but also Shift-Click for a range selection (which doesn't work). First version for Delphi 6. However, when you Control-click a cell, the event OnSelectedCell is called. OnDrawColumnCell in many applications that are in daily use. I have to modify some value in TDBGrid. How can I do since the tables are different? I know how to find a cell using the OnClick method on table1, but I don't know how to color a cell in table2 I am using Delphi 2010 with a dbgrid bound via ADO to a table in an Access mdb Database. The code would look like this: procedure TForm1. Data is populated from query. Depending on the text I want to change the color of the integer cell (in the same row) if the value is non-zero. OnColumnMoved event handler, I adjust some column headings colors. 1. However, Now, I am trying to figure out what function to use to capture the Click+Shift event. I'm using the option dgRowSelect as TRUE and because of that the OnCellClick event does not RowSelect breaks the functionality of OnCellClick, so I need to turn RowSelect off. NET, WinForms, HTML5 or Windows 10, DevExpress tools help you build and deliver your best in the shortest time possible. I am trying to add an image to a column on a TDbgrid that takes transparency into account. DBGrid Highlighting the located row via Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Select the grid component in the form and invoke the Columns editor by double-clicking the grid's Columns property in the Object Inspector. The OnCellClick event fires on a mouse click on the cell. The cell selection is only possible if the grid does not work in row selection mode. This link/pic show what my code below is resulting in. Here I summarize what you have to do: in the . Select either the Size or Weight column, expand it's Title property, and set Alignment to taRightJustify. Post; to ensure that the last edit made is posted, even if the user doesn't move to another row before clicking I have a simple DBGrid, DBNavigator, and an 'Edit' Button which simply calls . For that, there is a property Fields which can be accessed with an index for each The other issue-1 I am having is that I can only get the highlighting to work if I use the left mouse button. And the issue costs me too much What i want exact is when i click on the cell,the cursor will enter the cell for editing. ID Return 1 This is a **test** 2 **Test**ing The goal here is no doubt about querying data. To handle mouse button events more generally the Mouse events are more useful. So record is saved and goes to the other click record. Delphi - Get all column names of selected row from DBGrid. (See attached image. In a DBGrid, that would be on every click on a row, or the scrollbar, or using the keyboard (Home, Edn, Up, delphi; datagrid; event-handling; Problem using image from a TImage list to draw a glyph on to a data cell in DBGrid: I am putting a bmp image of a "checkmark" in place of the text "Done" in a particular data cell. I have two TStringGrids on the same Form. Is it possible to Word Wrap DBgrid Cell (height) in Delphi (xe) ? I have a dbgrid with multiple columns with a fixed Column width and some columuns has up to 100char and I need them to fit the appropriate Cell without changing the Hi pret32. I want to show the data that my query gets (select * from table_1) and put it in my DBGrid. I'm having a first attempt at colouring a cell's background in a DBGrid, something I've avoided up until now. I setup the sort settings of the grid and i write code for the onclicksort event, but it I'm using Delphi XE-2 and DBGrid from Jedi component group (TJvDBGrid). This table is filtered based on clicks in a radio group box. I am using Delphi 2007 btw. 3 and want to change the background color of a DBgrid. procedure TForm4. That identifies the cell and you can check whether or not the cell is in the current selection. Don't get your hopes up too much, though, because if you click in one of the checkboxs, you'll immediately see the problem with this limited implementation of checkbox support: Clicking the checkbox activates the grid's inplace editor, which replaces the checkbox image by the editing text for an ftBoolean field, namely 'True' or 'False. If your Dataset does support RecNo you might access the values using RecNo and the index of the field. free pascal, tdbgrid, selecting a row in TdbGrid if i know the row's ID from the DB. Attached is a small sample project demonstrating how to get a certain column and its The only way around it is to click somewhere else on the grid and then re-click the cell with the image to pull up the pdf file. Columns[i]. fields[dbgrid1. Or search for things like Delphi persistent fields online and read up on them. I suppose there are two use cases here, one where the number of rows is fixed and they remain in the same row order and one where rows can change (insert/delete or I am working on Delphi 10. It works, but there is always black color in the parts of the cell not covered by the image. DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect; DataCol: Integer; Column: TColumn; State: TGridDrawState); begin if Column. In order to place the button in the proper cell The OnDrawColumnCell event handler is called once for each grid cell and has several parameters, including the rectangle corresponding to the cell, the index of the column you Use the Grid's OnMouseUp event: ACol, ARow: Integer; if Button = TMouseButton. See example video. I used to paint column title when the grid was sorted by that certain column. Zhorov. ReadOnly := True; If you want to control a specific cell then you could try to program a "protection" scheme in the OnCellClickEvent. 7. Example Code: Create table and insert some data in SQL Server 2008. Asking for help, clarification, or responding to other answers. 1 - Line 1 of the grid 2 - Line 2 of the grid 3 - Line 3 of the grid . Assuming you are using a DBGrid in Delphi, you can use the OnKeyDown event to detect any keystrokes and then use the Locate method to look up the data in the DBGrid cell. As the space for the columns are limited and I do not want to configure each column of each table manually because it is very poor quality work, I was wondering a way to calculate the width of each column by the When I use the events mouseup and mousedown in DBGrid, with this code: if GetKeyState(VK_LBUTTON) and $8000 <> 0 then abort; does not work, because the event is AFTER the mouse click and not before. Get the screen coordinates of the mouse position from the global Mouse instance (Mouse. x < FIndicatorOffset. DBNavigator. By clicking “Post Your Answer”, Delphi gridpanel check if cell is empty. 2 below) For the DBGrid (Or DataSet?): 1. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog First, the grid (TGrid) doesn't store data so you need to provide a data storage like f. visible := false. One thing I do see, though, is that you don't need the two separate calls to DefaultDrawColumnCell; you should have a single one, just before the method's end;. On the other hand, when using dgRowSelect (when individual cells cannot be selected) the user won't be able to edit records directly through the grid and, By clicking “Accept All Cookies”, When I click in the Title, the procedure InternalLayout. (*) I want to fill the grid with data and buttons. 13. You have your own arrays for storing your cell If you put something like this in your datamodule, and assign it to the OnDrawColumnCell of every DBGrid, it seems to work (see notes that follow):. begin. If I do DBGrid. You can try this on DBGrid OnCellClick event handler put this: MessageDlg(IntToStr(Table1. Figure 13. If you are not sure in which mode the tested grid functions, you may ask the tested application’s developer. Grid1GetValue(Sender: TObject; const Col, Row: Integer; var Value: TValue); begin if Row > (Length(DataArr)-1) then exit; case Col of 0: Value I want to know when a record was double clicked on in a TDBGrid, but the OnDblClick event is fired regardless of where in the grid has been clicked. It's possible to prevent what you paint getting erased instantly using the OnDrawCell event handler, no need to override Paint or derive a new control. The user clicks the mouse button down in the cell. I need to be able to click that part only, not the cells. The following code shows how to access the Column and Row coordinates of a dbl-clicked cell of a TDBGrid, and the string value of the cell contents. Delphi DBGrid how to change the Re: DBGrid OnCellClick how to specify the column « Reply #1 on: March 11, 2019, 02:27:00 pm » OnCellClick is an event of TDBGrid class and can't be changed unless you sub-class TDBGrid and force a different signature for the event. I would like to add a button to the cell. ButtonClick(Sender: TObject); begin ShowMessage('The button is clicked!'); end; function TButtonColumn. The only real difference between TDrawGrid and TStringGrid is that TDrawGrid does not store any cell data itself whereas TStringGrid does, and also that you have to draw everything yourself in a TDrawGrid whereas TStringGrid default-draws the cell strings for you (but you can also custom draw the cells if desired). 5 How to get the content of a cell on a DBGrid in Delphi by using the OnCellClick event. ScreenToClient(Mouse. Then attach an event handler to your grid's OnTitleClick event that calls Button1. 8. Caption; If the columns are out of order, and you need to find a column title for a specific field, you have to look for it first: the generic OnDrawColumnCell handler handles the background colour for the cell. For example I have a text column and an integer column. Modify DBGrid cell content before it is displayed. If there is not currently selected cell, SelectedField is nil (Delphi) or NULL (C++). And, issue-2 is that I cannot initiate the highlight when I click on the top fixed row header area. Some of the entries will be invalid based upon values of the first selected row. SelectedField := DataSource. CursorPos)) and stuff that into the DBGrid method MouseToRecordOffset which returns the TColumn of the click. So, to get a list of the procedure TForm1. By clicking “Post Your Answer”, Delphi DBGrid alternate row colors for all DBGrids in the project. the generic OnDrawColumnCell handler handles the background colour for the cell. Afteropen := and you can hide fields with: if Condition then DBGrid. The techniques described below to anything that is termed a visual component. DisplayText; 2, double-click the cell I have also implemented hiding the control on col exit and showing and hiding the control on cell changed. On you column set ButtonStyle to Write an OnCellClick event handler to take specific action when the user clicks in one of the cells of the data-aware grid. However, in Delphi XE6 it doesn't. In Delphi, How can I I want to know when a record was double clicked on in a TDBGrid, but the OnDblClick event is fired regardless of where in the grid has been clicked. And I can write some code to update the tables in the DB after posting. CursorPos), convert it to grid-internal coordinates (DBGrid1. Specifies the field component for the currently selected cell in the grid. How can I disable the mouse clicks when record is in edit state. The native way would be to iterate over the dataset and the fields. In addition to your edit based on Remy's comment: Since the question asked about a specific cell, you should probably show how to change only one cell by using the ACol and ARow parameters (and maybe explain the call to InflateRect - as a suggestion, though, you don't need a separate var; you can directly pass Rect to InflateRect, since it's not declared as i have a string grid in Delphi 7, with 0. Go Up to Using data controls Index. Hot Author: Tomas Rutkauskas How to put components into a cell on a TDBGrid Answer: This article and the accompanying code shows how to put just about any component into a cell on a grid. For example, when the user uses the Tab key, or the Home key. To determine which cell is under the mouse cursor at the moment, you can use MouseCoord, which returns a TGridCoord record holding the coordinates of the cell under the cursor. N rows. Yes thank you. I'm using a TMS TDBAdvGrid and i need to sort the data when the user is clicking the header of a column. it is fired when you first open the dataset, and every time you move in it. (I just tested that. I finally found a way to make it work. ControlItems[x, y]) and Assigned(MyGridPanel. Related. I need the changed color to remain when I go to another Is there a way to simulate a cell click for the selected row so that the user information can be displayed, after the search is complete? I have tried to use I am new to delphi and I am creating a database for customers and I am able to populate their details in a dbgrid by Viewcustomers button. DBGRID1. OnCellClick occurs when the user releases the mouse. However I am trying to update their details by: selecting a row and change a value in a cell and updating the same by (You can avoid all of these difficulties if you stop trying to use a DBGrid as a data entry tool, and instead create a form to edit data. Value, which doesn't change after exiting the column, By clicking “Post Your Answer”, i have a string grid in Delphi 7, with 0. For example, say the TGrid displays 5rows x 10columns, and I'm interested in the values in column 9. ControlItems[x, y]. 0. columns[x]. N if the user clicks on the any number in the listbox number , that row number should be selected on the . Occurs when you perform a gesture associated with this control. What you really want to edit is probably the underlying fields values, as you chose the data-aware component rather than a more simple TStringGrid. CreateCellControl: TStyledControl; var cell Delphi components - DBGrid, DBTreeView, DBCheckListBox, HTMLLabel, HTML ListView Hint, StringGrid, Tab Page Control, XLS Export, introduces events for change sorting and click on title cells or fixed column cell; introduces Sorter component to provide sorting for different data types (ADO, DBX, ClientDataset, FireDac, Zeos, The problem with that is that the scope for custom-drawing the cells of a DBGrid are somewhat limited without going to a lot of trouble, ime. 13. This link/pic shows what I am trying to achieve with a TStringGrid. MeasureTitleHeights changes the size back to the original. Put the if/then code snippet (below) into the OnColEnter event of the DBGrid. The above is all working fine, except when the user clicks in the cell (before clicking the ellipsis) the Brush color goes back to white. unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Cl I would like to show in a DBGRID as follows: Imagine "Grid" as follows: ID - DESCRIPTION. 2. MyQuery1. Change color in tcxgrid column in delphi? 0. As you can see from the online help, the TColumn I want to fill the grid with data and buttons. 5. May 20, 2012 #1 I need to be able to change the color of a DBGrid Row by the CellClick event which I use for another purpose. I also use the grid's OnTitleClicked event to pop-up a (sort column) menu. Now, I found it to be very easy to define cell color when values are known, for example: OnGetCellParams event: if DBGrid. I have a Delphi DBGrid that looks normal when it first loads. I want to change the DBGrid. DisplayText, but they show the same value as Field. View position in DBGrid when scrolling in Delphi. SelectedIndex := Cell. MouseCoord(X, Y); MyDBGrid. I have a SQLQuery, then a DataSetProvider then a ClientDataSet supplying my DBGrid through a DataSource. I have a DBGrid in my form that contains many items. Does anyone know how I would accomplish this? I don't see a OnCellClick event that I can call to change the color of the cell. If dataset connected to dbGrid is TClientDataSet, you can drop another TClientDataSet and clone data from grid's dataset. How Do I fix column width only for two columns of DBGrid? And on other form, I have Tclientdataset connected to DBGrid. 2- when I click on each cell in DBGrid, Scrollbar start moving. Datasource. A Vcl. fields[3]. Then, in the OnDrawCell event, highlight the Delphi XE4 TGrid how do I get the value of a cell in the row I double clicked? 3 Get current cell value in DBGrid. Set SelectedField to move focus to a particular field in the grid. Well, Once you select this option, a user can keep the Ctrl key pressed and click with the mouse to select multiple grid rows, with the effect shown in Figure 13. TDataArr = array of TItem;. DisplayText; Change the Dbgrid1. To me, it looks like the FieldName property is I have a TDbGrid with some records. I just got the cell-value using another way . Load 7 more related questions Show fewer related questions Sorted by: Description. This article gives a solution: Displaying and editing MEMO fiels in Delphi's TDBGrid. DBGid. However I am trying to update their details by: selecting a row and change a value in a cell and updating the same by I've never seen the problem you're having, despite using the DBGrid. As soon as you click on the title, the column title acts like a button being pressed and an ugly black line appears. . Actually, what is displayed in the column header of a TDBGrid column is the Caption property of the column's Title object, which has other properties too. Store drawing information in a separate container, such as an array with the same number of items as their are cells in the grid, then use the grid's OnDrawCell event to paint the cells as needed using the information currently stored in the container. When I click on a cell (x, y) of the first Table, the background of the same cell (x, y) of the second table must turn red. And that's not what I want. Select Multiple Rows on Shift+Click in DBGrid. Provide details and share your research! But avoid . The first is the OnDrawColumnCell event, which is not used to customize the drawing (the DefaultDrawing property is set to True), but only to compute the position of the check box when a cell of the corresponding field is selected: Right-click the Columns Editor to invoke the context menu and choose Add All Fields. Delphi - dbGrid Select All. delphi; dbgrid; or ask your own question. How to make the DBGrid automatically highlights the row that I located from ADOTable1 ? I read the following links and did not find the answer : How to set active cell in TDBGrid? Delphi - Using DBGrid to select rows from a search. Btw, the grid only has a unique "middle row" if the number of rows being displayed in the grid is odd, of course. If you want to ignore the row and column also, then you could inspect the TRect that is supplied. From the question it's not clear. Click if Column = nil. We would like to activate the PopUp on How to get the content of a cell on a DBGrid in Delphi by using the OnCellClick event I need to be able to change the color of a DBGrid Row by the CellClick event which I use for another purpose. How can we set the color of specific cells to Row number in a DBGrid is a concept that is kept hidden. edit; MyQuery1. Viewed 3k times -2 In my form, i have a TDBGRid, TDatasource , MessageTable and 2 button. So there might be also an opposite reason to The VCL fills the empty area not occupied by cells after drawing of the cells are complete. RecNo y = DBGrid. Unfortunately, after the user drags a column and OnColumnMoved is finished, the VCL calls OnTitleClicked. Field. I tried, but the image kept showing and kept disappearing when i put the mouse over the title. Then, set DBGrid->ReadOnly=false when the user should not be allowed to edit. OnDrawCell Center Text StringGrid - Delphi. MouseToCell(X, Y, ACol, ARow); In Delphi 2010 is there any way to detect which cell was clicked when dgRowSelect is set to True ? Normally I would use the OnCellClick(Column: TColumn) event Determines the event triggered when a user clicks in a fixed cell. , Rows 4 to 20 are moved for stRow. I've made all the connections between the components, but after I launch my query (which returns 12 rows) in my DBGrid are shown 12 rows but they are empty. if Assigned(MyGridPanel. procedure TDataModule1. As written, Delphi double click DBGrid to find field contents of row. 1, get the contents of the current lattice: Dbgrid1. alternative you can check the condition on the OnDrawColumnCell event in order to overrite / delete some content in a specific cell Problem using image from a TImage list to draw a glyph on to a data cell in DBGrid: I am putting a bmp image of a "checkmark" in place of the text "Done" in a particular data cell. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can By clicking “Post Your Answer”, @Johan, not necessarily. CheckBox in a DBGrid. If I double click anywhere in row 2, I want the value of cell(row=2, col=9) to be put in a TEdit. Delphi - Update field in a dbGrid while selection is on another row. For example, when an entire row is selected, Use the TField. I have another column, the one I want to colour, called "ColourDescription". So considering you use similar components you can do I am using TDBGrid for the first time. how the hell I can get value I just entered into DBGrid Cell? I tried DBGrid[FieldName]. X-DBGrid Component 2. dbgrid1ColEnter(Sender: TObject); begin if Problem. I didn't even notice the Columns property in the object inspector and everything went just fine: the grid was filled. grid. Read SelectedField to obtain access to the field component for the currently selected cell. Hot Network Questions Bleach in cast iron pan, safety concerns? Following the concepts described in the Beginners Guide to Delphi Database Programming, the examples below use ADO components (AdoQuery/AdoTable connected to ADOConnection, DBGrid connected to AdoQuery over DataSource) to display the records from a database table in a DBGrid component. SelectedRows. I have a string grid with fixed cell widths, Change the Delphi DbGrid scroll behaviour. pas > interface > type > inside your . Highlight search result in DataGridView cell. 13: The MltGrid example has a DBGrid control that allows the selection of multiple rows. Delphi reaching a DBGrid's rows. Title. I'm performing a query and displaying returned data in dbgrid. If I were you I'd report this one to QC as a If I LEFT click a third time in the same cell I get a black font on a white background (just like the other cells). You can color individual cells using the CellProperties property of the grid. Click it a second time so that it selects the value in the cell rather than the cell per se. GetBookmark) Continuing with the project started in: How to auto fit/scale DBGrid's (or By clicking “Post Your Answer”, Delphi: How to make cells' texts in TStringGrid center aligned? 2. Since the VCL uses the same device context for drawing the cells and the empty I have a TDbGrid with some records. Delphi DBGrid how to change the value when displayed. Improve this question. Run the application. By component I mean anything from a simple combobox to a more complicated dialog box. TDBGrid onSelect. I want to show popup button or fancy message (with coloured background, etc) just under right-bottom corner of particular cell of the current row. Delphi DBGrid how to change the delphi DBGrid cell not empty. Options + [dgEditing]; By clicking “Post Your Answer”, Delphi DBGrid alternate row colors for all DBGrids in the project. ex. Delphi TDBGrid selected row get The OnDrawColumnCell event handler is called once for every cell of the grid and has several parameters, including the rectangle corresponding to the cell, the index of the column we have to draw, the column itself (with the field, its alignment, and other subproperties), and the status of the cell. Ask Question Asked 8 years, 4 months ago. It is possible to add a button to each cell of the column of the DBGrid but it seems to me that this button is dedicated to edit the value of the cell. I'm implementing a complex TDBGrid which will have TEdit's floating below each column heading where the user can enter filters. This is called after the EditMask has been validated, but before the data is actually written to the record buffer. Color := clBlue; Is this possible? Or is there a better way how to highlight sorted column? Just access the Columns directly:. EDIT: I'm already doing DBGrid. FieldByName('Name'); To bring the user's attention more to the region in question, I set: Description. But now I can not Edit and Update values in dbgrid in delphi. Columns[C]. I want to set the background color of the active/selected row in a TDBGrid control. The following code colour codes the rows ba Note: the dataset object is called "DBTable", the MEMO field is called "DATA", and therefore, by default, the TMemoField connected to the MEMO database field is called "DBTableData". How to highlight a DBGrid cell? 5. Click on the form, and then use the Object Inspector to create a new OnCreate event @Tofig: There is a hack you can use for not redeclaring all your components. Ask Question Asked 4 years, 11 months ago. 9. 2. – Brian. I click on button in row 3. I want to drag an drop multiple records to a listbox on simple drag and drop. Continuing with the project started in: How to auto fit/scale DBGrid's (or By clicking “Post Your Answer”, Delphi: How to make cells' texts in TStringGrid center aligned? 2. You can use this to color an entire row: var RowIndex: Integer; ColIndex: Integer; with MyDBAdvGrid do begin // you choose the row index; you may want to iterate all rows to // color each of them RowIndex := 2; // now iterate all (non-fixed, visible) cells in the row and color each cell for Specific cell or all cells in one column? You may setup a column to read only in this way: TDBGrid. But it works for only 1 cell: when i click next cells the color becomes standart (like in another cells in DBGrid) for the previous cell. EditValue and . FieldName. But how to highlight specific text in DBGrid? By clicking “Post Your Answer”, Delphi DBGrid alternate row colors for all DBGrids in the project. CaptionText := DBGrid1. 3 (July 17, 2001). TDBGrid control lets you view and edit records in a dataset in a tabular grid format. By assigning DBTableData. The code below show how to get the "title" of the grid column the mouse pointer is over. The drawing code should be called in every case; the arguments passed to it will vary How can I put Image in TDBGrid column heading?. You can use this to color an entire row: var RowIndex: Integer; ColIndex: Integer; with MyDBAdvGrid do begin // you choose the row index; you may want to iterate all rows to // color each of them RowIndex := 2; // now iterate all (non-fixed, visible) cells in the row and color each cell for DBGrid. DBGrid set some I know how to owner draw a cell with OnDrawCell() - what I can't figure out is how to know if the new value is the same as or different from the previous value for a given cell. Then I saw the Columns property and tried it. selectedindex to the field you wish to refer to, such as the 3rd field. I want to make 1st and 5th column non resizable and other fields as resizable. CREATE TABLE [dbo]. The row selection mode is active, if the grid’s Options property contains the dgRowSelect value (this is an internal property of the TDBGrid control). wjoxrlrieakamxjmnqlrvgsdeuywxrcrgihkkvxxxhgilqr