在我的Angular应用中,我有一个表格。用户应在此表格中输入以下内容:
我在开始日期和结束日期输入中使用了角材料“ Datepicker”:
<form #f="ngForm" (ngSubmit)="onSubmit(f)" fxLayout="column" fxLayoutAlign="center">
<mat-form-field>
<input matInput [matDatepicker]="picker1" placeholder="Select Start Date" ngModel #beginningInput="ngModel" name="beginning" type="date" required>
<mat-datepicker-toggle matSuffix [for]="picker1"></mat-datepicker-toggle>
<mat-datepicker #picker1></mat-datepicker>
<mat-error *ngIf="beginningInput.hasError('required')">
Start date is required.
</mat-error>
</mat-form-field>
<mat-form-field>
<input matInput [matDatepicker]="picker2" placeholder="Select End Date" ngModel #endInput="ngModel" name="end" type="date" required>
<mat-datepicker-toggle matSuffix [for]="picker2"></mat-datepicker-toggle>
<mat-datepicker #picker2></mat-datepicker>
<mat-error *ngIf="endInput.hasError('required')">
End date is required.
</mat-error>
</mat-form-field>
<mat-form-field>
<textarea matInput placeholder="Textarea" ngModel #textInput="ngModel" name="description" ></textarea>
</mat-form-field>
<div class="gap"></div>
<div class="buttons">
<button class="cancelButton" mat-raised-button color="primary" [mat-dialog-close]>Cancel</button>
<button class="submitButton" mat-raised-button color="primary" [disabled]="isDisabled">Submit</button>
</div>
</form>
提交表单后,应该保存开始日期,结束日期和文本区域的内容,然后进行处理。因此,在.ts文件中,有以下代码(为完整起见,我将其包括在内):
onSubmit(form: NgForm) {
this.beginning = form.value.beginning;
this.end = form.value.end;
this.description': form.value.description;
//more code
}
但是,该表单仍然无效,也就是说,我无法提交该表单,请参见以下屏幕截图:
鉴于我要执行的操作,我不确定以下几行是否正确:
<input matInput [matDatepicker]="picker1" placeholder="Select Start Date" ngModel #beginningInput="ngModel" name="beginning" type="date" required>
和
<input matInput [matDatepicker]="picker2" placeholder="Select End Date" ngModel #endInput="ngModel" name="end" type="date" required>
和
<textarea matInput placeholder="Textarea" ngModel #textInput="ngModel" name="description" ></textarea>
我的代码有问题吗?任何帮助将不胜感激。
答案 0 :(得分:0)
Submit
按钮保持为disabled
的原因可能是,一旦表格有效,您就永远不会将isDisabled
的值更改为false。
您还可以直接检查表单的有效性
[disabled]="f.invalid"
html代码
<button class="submitButton" mat-raised-button color="primary" [disabled]="f.invalid">Submit</button>