Angular viewchild expected 2 arguments Sep 2, 2023 · Dealing with errors like "Expected 2 arguments, but got 1" can be frustrating, but with these easy solutions, you should be able to resolve the issue with @ViewChild() in Angular. #html代码是这样的 这是一个DOM节点 ts代码是import { Component, OnInit ,ViewChild,ElementRef} from '@angular/core';_expected 2-4 arguments, but got 1. Can you please explain more what are you trying to achieve from ViewChild. viewchild angular In Angular 8, ViewChild takes 2 parameters In Angular 9 default value is static: false, so doesn't 我按如下方式使用ViewChild： @ViewChild (&#34 Expected 2 arguments, but got 1. That object needs to have a boolean value for static. ts (2554) core. header. Apr 11, 2020 · How to fix Angular 9 @ViewChild Expected 2 arguments, but got 1: An argument for 'opts' was not provided. Remember to provide an empty options object, verify your ElementRef import, and update your Angular version if necessary. { static: true} When trying ViewChild I am getting the error. Nov 14, 2022 · I think, ViewChild is used for Accessing Child component which is part of Angular and Rxsj is a separate Library. Jun 19, 2019 · 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 TypeScript 错误 TS2554：期望有2个参数，但只提供了1个参数 @ViewChild 在本文中，我们将介绍 TypeScript 中的一个常见错误TS2554，并且提供解决方案和示例说明。 阅读更多：TypeScript 教程 TS2554错误的背景 当我们使用@ViewChild装饰器时，有时可能会遇到错误TS2554。 Jun 13, 2019 · This is a part of my code that I get this error: Expected 2 arguments, but got 1. 30. ts(2554) core. reverse(list); 复制逆序后的list（这方法我用了，出现错误） List list1= Collections. Error is "An argument for 'opts' was not provided. x application, but you see an error message like app/my-component/my-component. ts May 8, 2020 · In Angular 8, ViewChild takes 2 parameters In Angular 9 default value is static: false, so doesn't need to provide param unless you want to use {static: true} */ @ViewChild(ChildDirective, {static: false}) Component /* I hope it will help you. Nov 13, 2021 · In Angular 8 , ViewChild takes 2 parameters: Try like this: Explanation: { static: false } If you set static false, the child component ALWAYS gets initialized after the view initialization in time for the ngAfterViewInit/ngAfterContentInit callback functions. Dec 31, 2021 · Example 1: expected 2 arguments but got 1. core: In Angular version 8, it’s required that all @ViewChild and @ContentChild queries have a ‘static’ flag specifying whether the query is ‘static’ or ‘dynamic’. . The answer is to use ViewChildren instead of ViewChild. 20. core: In Angular version 8, it's required that all @ViewChild and @ContentChild queries have a 'static' flag specifying whether the query is 'static' or 'dynamic'. Mar 8, 2025 · This parameter is essential to tell viewChild what type of component is expected to match this query. component'; impor Feb 14, 2018 · for Angular version below 7, use read argument for MatPaginator. Oct 12, 2019 · Answer Explanation my instructor: https://www. Dec 19, 2019 · 逆序输出（这是我百度的，用了，可以正确使用） Collections. Jan 15, 2020 · Newer versions of Angular require you to provide an object as a second parameter to the @ViewChild decorator . Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. MatPaginator gets undefined. Thanks for any suggestions. Nov 4, 2019 · Angular中使用@ViewChild获取DOM节点时报错Expected 2 arguments, but got 1. ts(8064, 47): An argument for 'opts' was not provided ViewChild requires a second argument since Angular 8. from here: import {ViewChild, ChangeDetect in v8 ViewChild syntax changed CHANGELOG says. Ask Question Asked 4 years, 5 months ago. udemy. d. Angular @ViewChild() error: Expected 2 arguments, but got 1. 0 it's still working for me. May 29, 2019 · in v8 ViewChild syntax changed CHANGELOG says. monitor. I am unable to access the property of component even after importing with @ViewChild. ts(8054, 47): An argument for 'opts' was not provided. Join the community of millions of developers who build compelling user interfaces with Angular. com/user/jost-schmithals/ In Angular 8 (but not before and after) we have to use this special syntax for Jun 19, 2019 · Expected 2 arguments, but got 1. @ViewChild('tabs', {static: false}) tabs: IonTabs; static property should be set true to resolve query results before change detection runs and false for depending on binding resolution (Structural directives *ngIf, *ngFor,) for query resolution. 103. I had similar issue where I didn't want a grid to be shown until all the reference data had been loaded. And this is how you use viewChild to directly query component instances, it's that simple! How does viewChild() work if the template changes? Apr 11, 2020 · You are trying to compile your Angular 9. Below is the code. Try it 在使用 @ViewChild() 进行元素引用时，我们经常会遇到以下错误信息：Expected 2 arguments, but got 1。 这个错误通常出现的原因是因为在使用 @ViewChild() 时，缺少了第二个参数，即配置对象。 Angular is a platform for building mobile and desktop web applications. " Shows error: ts(11,2): error TS2554: Expected 2 arguments, but got 1. Angular EventEmitter Error: Expected 0 type arguments, but got The issue as previously mentioned is the ngIf which is causing the view to be undefined. May 8, 2020 · In Angular 8, ViewChild takes 2 parameters In Angular 9 default value is static: false, so doesn't need to provide param unless you want to use {static: true} */ @ViewChild(ChildDirective, {static: false}) Component /* I hope it will help you. copy(list); 错误： 红色波浪线提醒：Expected 2 arguments but found 1 这话意思是，有2个参数，但是只找到一个，我看到网上都是这样的 Feb 4, 2020 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. ts:24:4 - error TS2554: Expected 2 arguments, but got 1. Jul 12, 2019 · At this line of the following code @ViewChild('myListView') listViewComponent: RadListViewComponent; I get the this error message: Expected 2 arguments, but got 1. ts (8054, 47): An argument for 'opts' was not provided. ts import { AdminComponent } from 'admin/admin. 迁移到Angular 8后，您应该手动声明它是否是静态的 Aug 20, 2020 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Sep 5, 2019 · You need to declare a variable and add the decorator to it : import { Component, OnInit, ViewChild } from '@angular/core'; import * as $ from 'jquery'; @Component Mar 28, 2018 · Expected 2 arguments, but got 1. Oct 19, 2020 · Pass data from child component to parent component in Angular @ViewChild Expected 2 arguments. At this line of the following code @ViewChild('myListView') listViewComponent: RadListViewComponent; I get the this error message: Expected 2 arguments, but got 1. Nov 2, 2020 · I'm using Angular version 8. component. Modified 4 years, 5 months ago. Nov 11, 2019 · You have to configure the static property in Metadata Properties (From Angular 8 onwards). 0, I just test it in version 7. fstw oxn rlhq nsj vswzx negc xsxtunzkh ekwr tcycss clytel mmcpo kvy hogfy hoewg yfmv