如果 j = 0,则设置选项-html 禁用
Set option-html disabled if j = 0
如果值为 j = 0
,是否可以设置 select 选项 disabled
?
j值取自数据库。
<ng-container *ngFor="let interventi of variabileIntervento; index as i">
<tr *ngFor="let variante of interventi.varianti; index as j">
<td><select [(ngModel)]="type" (change)="changeTotal()">
<option selected disabled>Select</option>
<option value="0">{{interventi.supIntonacate[j]}}</option>
<option value="1">{{interventi.supEvIi[j]}}</option>
<option value="2">{{interventi.supIvEi[j]}}</option></select></td>
试试这个:
<option selected [disabled]="j === 0 ? true : false">Select</option>
或者这个,如果不起作用:
<option selected [attr.disabled]="j === 0 ? 'disabled' : null">Select<option>
来源:https://angular.io/guide/binding-syntax#property-and-attribute-comparison
如果值为 j = 0
,是否可以设置 select 选项 disabled
?
j值取自数据库。
<ng-container *ngFor="let interventi of variabileIntervento; index as i">
<tr *ngFor="let variante of interventi.varianti; index as j">
<td><select [(ngModel)]="type" (change)="changeTotal()">
<option selected disabled>Select</option>
<option value="0">{{interventi.supIntonacate[j]}}</option>
<option value="1">{{interventi.supEvIi[j]}}</option>
<option value="2">{{interventi.supIvEi[j]}}</option></select></td>
试试这个:
<option selected [disabled]="j === 0 ? true : false">Select</option>
或者这个,如果不起作用:
<option selected [attr.disabled]="j === 0 ? 'disabled' : null">Select<option>
来源:https://angular.io/guide/binding-syntax#property-and-attribute-comparison