我有一个登录对话框,并希望防止在按下Enter键时自动关闭该对话框。
更具体地说,当用户放置凭证并按Enter键,并且凭证响应作为错误返回时,我希望对话框保持不变(这样我可以向他们显示一些错误消息,然后让用户再次尝试) 。
这就是我所做的:
export class LoginComponent {
constructor(public dialogRef: MatDialogRef<LoginComponent>) { }
onSubmit(): void {
this.authService.login(...)
.subscribe(res => {
...
},
error => {
this.dialogRef.disableClose = true;
}
}
}
this.dialogRef.disableClose = true;
仍然关闭对话框,即使响应作为错误返回。
我应该怎么做?
修改
login.component.ts
<mat-toolbar>
<span>Login</span>
</mat-toolbar>
<mat-card class="my-card">
<div *ngIf="error" style="color: red;">{{error}}</div><br />
<form (ngSubmit)="onSubmit()" [formGroup]="loginForm">
<mat-card-content>
<mat-form-field appearance="outline" class="full-width">
<mat-label>Email</mat-label>
<input matInput placeholder="Email"
formControlName="email"
[formControl]="emailFormControl"
[errorStateMatcher]="matcher" />
<mat-error *ngIf="emailFormControl.hasError('email') && !emailFormControl.hasError('required')">
Enter valid email address
</mat-error>
<mat-error *ngIf="emailFormControl.hasError('required')">
Required field
</mat-error>
</mat-form-field>
<mat-form-field appearance="outline" class="full-width">
<mat-label>Password</mat-label>
<input matInput type="password"
placeholder="Password"
formControlName="password"
[formControl]="passwordFormControl"
[errorStateMatcher]="matcher" />
<mat-error *ngIf="passwordFormControl.hasError('required')">
Required field
</mat-error>
</mat-form-field>
</mat-card-content>
<mat-card-actions>
<button mat-raised-button (click)="onNoClick()" color="primary">Close</button>
<button mat-raised-button
[disabled]="!(loginForm.controls.email.valid && loginForm.controls.password.valid)"
color="accent">
Login
</button>
</mat-card-actions>
</form>
</mat-card>
login.component.ts
onSubmit(): void {
if (this.loginForm.invalid) {
return;
}
this.authService.login(this.loginForm.controls.email.value, this.loginForm.controls.password.value)
.subscribe(res => {
if (res) {
alert("logged in");
}
},
error => {
this.error = 'Error! Plese try again.';
}
);
}
答案 0 :(得分:0)
我认为这是因为您的“关闭”按钮未设置为type =“ button”,并且我认为这是第一个具有焦点的元素,因此在按Enter键时,您正在输入该按钮,默认情况下,提交表格。添加type =“ button”即可解决。
为了便于记录,最新版本的角材还默认为md-button自动添加type =“ button”(除非您指定type =“ submit”)以避免这种情况
使用此
<mat-card-actions>
<button mat-raised-button type="button" (click)="onNoClick()" color="primary">Close</button>
<button mat-raised-button type="submit"
[disabled]="!(loginForm.controls.email.valid && loginForm.controls.password.valid)"
color="accent">
Login
</button>
</mat-card-actions>