我的表格很长,但是仅当特定字段为空或存在一些验证错误时,我才想禁用特定按钮(在模板上,我不想在组件上使用它)是我的表单示例:
<form #myForm="ngForm">
<div class="form-group">
<label>Email</label>
<input [(ngModel)]="email" #email="ngModel" name="my_email" type="text" class="form-control" required>
<span *ngIf="email.errors?.required">
This field is required
</span>
</div>
<button [disabled]="myForm.email.errors?.required">Some action</button>
</form>
我不需要完整的有效表格来禁用该按钮,我只想根据特定输入的值进行检查。
我该怎么办?我想念什么?
答案 0 :(得分:0)
1-将模板变量#email重命名为#emailInput或任何不同于模型属性名称“ email”的名称。
<input [(ngModel)]="email" #emailInput="ngModel" name="my_email" type="text" class="form-control" required>
2-在按钮的disable属性和显示错误的范围中使用模板变量#emailInpunt。
<button [disabled]="emailInput.errors?.required">Some action</button>
<span *ngIf="emailInput.errors?.required">
This field is required
</span>
完整代码:
<form #myForm="ngForm">
<div class="form-group">
<label>Email</label>
<input [(ngModel)]="email" #emailInput="ngModel" name="my_email" type="text" class="form-control" required>
<span *ngIf="emailInput.errors?.required">
This field is required
</span>
<button [disabled]="emailInput.errors?.required">Some action</button>
</div>
</form>
上尝试