How In Angular Material To Set Values of "y" And "n" For Component Checkbox?

Question

The database I use does not use boolean values true and false. How in Angular Material to set values of Y and N for component checkbox? html:

Solution 1:

NOT use formControlName. The formGroup exist if you has an input with [formControlName] or not. So, you can use a [ngModel] (ngModelChange) in a input

<mat-checkbox [ngModel]="form.get('IS_ACTIVE').value=='Y'? true:false"
              (ngModelChange)="form.get('IS_ACTIVE').setValue($event? 'Y':'N')"
              [ngModelOptions]="{standalone:true}">
      Active
</mat-checkbox>

Updated Really it's not necesary use [ngModel], just

<mat-checkbox [checked]="form.get('IS_ACTIVE').value=='Y'? true:false"
              (change)="form.get('IS_ACTIVE').setValue($event.checked? 'Y':'N')"
              >
      Active
</mat-checkbox>

See stackblitz

Solution 2:

You can bind your form control value to check the checkbox and pass a value on the change event.

Something like this.

<mat-checkboxformControlName="IS_ACTIVE" (change)="checkboxChange('Y')" [checked]="form.controls.IS_ACTIVE.value == 'Y'">Active</mat-checkbox><mat-checkboxformControlName="IS_ACTIVE" (change)="checkboxChange('N')" [checked]="form.controls.IS_ACTIVE.value == 'N'">Inactive</mat-checkbox>

I'm not sure if there's a better way to do this. This is just a suggestion. I hope this helps.

EDIT: Well I guess the only option you have is to use [(ngModel)] or formControlName and do a bit of manipulation on your data.

Baca Juga

First, when you create your form controls.

this.form = new FormGroup({
    NAME: new FormControl(null, [Validators.required]),
    IS_ACTIVE: new FormControl('Y')// change this to true or false. maybe a condition checking the value for the string. Eg. value == 'Y' ? true : false.
  }

Next, if you are doing this inside a form (which is what I'm assuming) you should use formControlName.

<mat-checkboxformControlName="IS_ACTIVE"formControlName="IS_ACTIVE">Active</mat-checkbox>

You don't have to check for the change event as the boolean values bind on the form control.

Then before saving on, maniputale the form control's values to 'Y' or 'N'

let boolVal = this.form.controls.IS_ACTIVE.value ? 'Y' : 'N'//do something with boolVal

This is the only option I can think of to achieve your goal. I hope this helps again.

Solution 3:

Provide value="checked" it will work!

<mat-checkboxvalue="form.controls.IS_ACTIVE.value == 'Y'"?checked:''" (click)="changeValue(checked)"color="primary">
   some Label
</mat-checkbox>

javascript spravka

How In Angular Material To Set Values of "y" And "n" For Component Checkbox?

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