获取组件选择器
获取组件选择器
提问于 2017-04-05 10:22:33
‘’epimss personnel‘给出了以下内容...
@Component(
{
selector: 'epimss-personnel',
templateUrl: './personnel.component.html',
styleUrls: [ './personnel.component.css' ]
} )
export class PersonnelComponent implements OnInit {
personnel: IPersonnel = new Personnel();
constructor( ) {
}
ngOnInit() {
}
}..。如何在PersonnelComponent中以编程方式获取选择器字符串'epimss-personnel‘？
编辑1
当我添加了下面的建议时，我得到了以下信息：
compiler.es5.js:14582 Uncaught Error: Unexpected value 'AppRoutingModule' imported by the module 'AppModule'. Please add a @NgModule annotation.
at syntaxError (compiler.es5.js:1503) [<root>]
at :4200/vendor.bundle.js:117324:44 [<root>]
at Array.forEach (<anonymous>) [<root>]
at CompileMetadataResolver.getNgModuleMetadata (compiler.es5.js:13953) [<root>]
at JitCompiler._loadModules (compiler.es5.js:25134) [<root>]
at JitCompiler._compileModuleAndComponents (compiler.es5.js:25093) [<root>]
at JitCompiler.compileModuleAsync (compiler.es5.js:25055) [<root>]
at PlatformRef_._bootstrapModuleWithZone (core.es5.js:4786) [<root>]
at PlatformRef_.bootstrapModule (core.es5.js:4772) [<root>]
at Object.426 (main.ts:47) [<root>]
at __webpack_require__ (bootstrap d227106…:52) [<root>]
at Object.1132 (main.bundle.js:7) [<root>]
at __webpack_require__ (bootstrap d227106…:52) [<root>]
at webpackJsonpCallback (bootstrap d227106…:23) [<root>]..。UI也不会显示。
回答 2
Stack Overflow用户
发布于 2019-05-16 07:04:37
如果您不在组件内部，您将无法使用ElementRef，并且Reflect解决方案将不能与AOT一起工作。幸运的是，当您知道目标是一个组件时，还有一种替代方法：
const components = [ PersonnelComponent ];
/*
...
Anything that can be injected into
*/
constructor(private componentFactoryResolver: ComponentFactoryResolver) {
// For each component
components.forEach(element => {
// Get its resolved factory
const factory = this.componentFactoryResolver.resolveComponentFactory(element);
console.log('Factory:', factory);
console.log('Selector:', factory.selector);
});
}Stack Overflow用户
发布于 2017-04-12 23:44:00
constructor(elRef:ElementRef) {
console.log(elRef.nativeElement.tagName);
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/43220746
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