[英]ionic 3, custom component and ngClass binding issue
我試圖在Ionic3中制作一個簡單的組件來顯示點以指示我們在哪一頁上。 我曾使用ionic generate命令來生成此組件:
import { Component, Input } from '@angular/core';
@Component({
selector: 'panel-indicator',
templateUrl: 'panel-indicator.html'
})
export class PanelIndicatorComponent {
@Input() page: number;
constructor() {
console.log('Hello PanelIndicatorComponent Component');
this.page = 1;
}
}
這是模板部分:
<div class="indicator-list">
<div class="indicator selected" [ngClass]="{'selected': page === 1}"></div>
<div class="indicator" [ngClass]="{'selected': page === 2}"></div>
<div class="indicator" [ngClass]="{'selected': page === 3}"></div>
</div>
當我刪除ngclass屬性時,沒有問題。 但是,當我添加它時,出現以下錯誤:
Can't bind to 'ngClass' since it isn't a known property of 'div'. ("
<div class="indicator-list">
<div class="indicator selected" [ERROR ->][ngClass]="{'selected': page === 1}"></div>
<div class="indicator" [ngClass]="{'selected': page =="): ng:///ComponentsModule/PanelIndicatorComponent.html@4:34
Can't bind to 'ngClass' since it isn't a known property of 'div'. ("iv class="indicator selected" [ngClass]="{'selected': page === 1}"></div>
<div class="indicator" [ERROR ->][ngClass]="{'selected': page === 2}"></div>
<div class="indicator" [ngClass]="{'selected': page =="): ng:///ComponentsModule/PanelIndicatorComponent.html@6:25
Can't bind to 'ngClass' since it isn't a known property of 'div'. ("
<div class="indicator" [ngClass]="{'selected': page === 2}"></div>
<div class="indicator" [ERROR ->][ngClass]="{'selected': page === 3}"></div>
</div>
"): ng:///ComponentsModule/PanelIndicatorComponent.html@8:25
at syntaxError (http://localhost:8100/build/vendor.js:101030:34)
at TemplateParser.parse (http://localhost:8100/build/vendor.js:124893:19)
at JitCompiler._parseTemplate (http://localhost:8100/build/vendor.js:134321:37)
at JitCompiler._compileTemplate (http://localhost:8100/build/vendor.js:134296:23)
at http://localhost:8100/build/vendor.js:134198:62
at Set.forEach (<anonymous>)
at JitCompiler._compileComponents (http://localhost:8100/build/vendor.js:134198:19)
at http://localhost:8100/build/vendor.js:134068:19
at Object.then (http://localhost:8100/build/vendor.js:101019:77)
at JitCompiler._compileModuleAndComponents (http://localhost:8100/build/vendor.js:134067:26)
我沒有找到任何關於這個問題的信息。 因此,如果您有個主意,歡迎您。
謝謝閱讀。
您需要添加BrowserModule
@NgModule(
imports: [BrowserModule, /* other imports */] from '@angular/platform-browser',
...
)
如果在子模塊中,請導入CommonModule。
import { CommonModule } from "@angular/common"
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