问题描述
现在我对枚举有一些问题。 我想用枚举值在组件中进行mat-select,但是我不明白,怎么可能。 我尝试过,但是没有用
我的ts组件代码
import { Component,OnInit } from '@angular/core';
import { FormControl,FormGroup } from '@angular/forms';
import { select,Store } from '@ngrx/store';
import { Currency } from 'src/app/enums/CurrencyType';
import { Edition } from 'src/app/enums/EditionType';
import { Author } from 'src/app/models/Author';
import { getAuthorsList } from 'src/app/store/author/author.actions';
import { getAuthoRSSelector } from 'src/app/store/author/author.selector';
@Component({
selector: 'app-printing-edition-item',templateUrl: './printing-edition-item.component.html',styleUrls: ['./printing-edition-item.component.css']
})
export class PrintingEditionItemComponent implements OnInit {
type: Edition -- my enum
constructor(private store: Store) {
}
}
我的枚举
export enum Edition{
None = 0,Journal = 1,Newspaper = 2,Book = 3
}
我尝试使用HTML:
<mat-form-field>
<mat-label>Category</mat-label>
<mat-select formControlName="type">
<mat-option *ngFor="let item of type" value="item">type[item]</mat-option>
</mat-select>
</mat-form-field>
解决方法
您可以使用类似的东西:
<groupId>info.cukes</groupId>
<artifactId>cucumber-java</artifactId>
<version>1.2.5</version>
<type>pom</type>
在您的模板中:
export class PrintingEditionItemComponent implements OnInit {
type = Edition;
keys: string[];
constructor(private store: Store) { }
ngOnInit() {
this.keys = Objects.keys(this.type).filter(Number);
this.selectedEdition = Edition.Foo;
}
}