How to disable the div tag in angular 2

问题:

I am trying to disable the div tag after a success callback of that action.

please look my ion-content

<ion-content padding class="forgot-password">
  <div [ngClass]="{active: isOn,disabled: isDisabled}">
    <ion-item>
        <ion-label floating>Email/Mobile</ion-label>
        <ion-input type="text" [(ngModel)]="loginId"></ion-input>
    </ion-item> <br><br>

    <button class="float-right" (click)="generateOTP(!isOn);">Send OTP</button><br><br><br>
  </div>
  <br>

  <div *ngIf="showRePasswd">
    <ion-item>
        <ion-label floating>Enter OTP</ion-label>
        <ion-input type="text" [(ngModel)]="passwd"></ion-input>
    </ion-item> <br><br>

    <button class="float-right" (click)="resetPassword();">Send Password</button>
  </div>
</ion-content>

here is my .ts file

export class ForgotPasswordPage {

    public loginId = "";
    public passwd = "";

  public showRePasswd = false;
  isDisabled = false;
  isOn = false;

  constructor(private navCtrl: NavController, private logger: Logger, private user: Users) {

  }

  generateOTP(newstate) {
    this.logger.info("invoking generateOTP FN");
    var _this = this;
    this.user.generateOTP(this.loginId, function(result,data){
      if(result == '1') {
        alert(data);
        _this.showRePasswd = !_this.showRePasswd;
        _this.isDisabled = true;
        _this.isOn = newstate;
      }
      else {
        //this.showRePasswd = this.showRePasswd;
        alert(data);
      }
    })
  }

  resetPassword() {
    this.logger.info("invoking resetPassword FN");
    var _this = this;

    this.user.resetPassword(this.passwd, function(result,data) {
      if(result == '1') {
        alert(data);
        _this.navCtrl.push(LoginPage);
      }
      else {
        alert(data);
      }
    })
  }
}

I tried [ngClass] but i am not able to make my div tag disable after the success callback.

I also tried using [disabled] but not working

Here is a demo for disable a div tag but in my case not working

My requirement is to make my input field and button to be disabled after success callback

回答1:

You can add the attribute like

<div [attr.disabled]="isDisabled ? true : null">

but <div> doesn't support the disabled attribute.

Perhaps this is what you want

<div (click)="isDisabled ? $event.stopPropagation() : myClickHandler($event); isDisabled ? false : null"
   [class.isDisabled]="isDisabled"></div>

with some custom CSS that makes .isDiabled look disabled.

It might be better to create a method to put the code there instead of inline.

回答2:

Div element cannot be disabled like form controls. You can disable form controls in div instead.

Provided example has custom class "disabled"

styles: [`
    .button {
      width: 120px;
      border: medium solid black;
    }

    .active {
      background-color: red;
    }

    .disabled {
      color: gray;
      border: medium solid gray;
    }
  `]