如果用户未填充输入字段,我希望禁用该按钮.我添加了一个条件“(name.value.length === 0 || email.value.length === 0)”它会在加载时禁用该按钮,但是当在文本字段中输入值时,不会删除禁用的
<section class="container col-md-12 col-md-offset-3"> <h1>Add Users</h1> <form class="form-inline"> <div class="form-group"> <label for="exampleInputName2">Name</label> <input type="text" class="form-control" id="exampleInputName2" placeholder="Jane Doe" #name> </div> <div class="form-group"> <label for="exampleInputEmail2">Email</label> <input type="email" class="form-control" id="exampleInputEmail2" placeholder="jane.doe@example.com" #email> </div> <button type="submit" [disabled]="(name.value.length === 0 || email.value.length === 0)" class="btn btn-default" (click)="getValues($event,name,email)">Add Data</button> </form> </section> <section class="container"> <h3>Users Details</h3> <table class="table"> <thead> <tr> <th class="col-md-6">Name</th> <th class="col-md-6">Email</th> </tr> </thead> <tbody> <tr *ngFor="let data of dataArr"> <td>{{data.name}}</td> <td>{{data.email}}</td> </tr> </tbody> </table> </section>