Bind data to checkbox in angular material table using formcontrol. Data is available as list of true,false values

Question

HTML

<ng-container matColumnDef="view">
    <mat-header-cell *matHeaderCellDef mat-sort-header>View</mat-header-cell>
       <mat-cell *matCellDef="let element; let i=index"> 
          <mat-checkbox formControlName="view" (change)=updateCheckedList(element)>
         </mat-checkbox>
       </mat-cell>
</ng-container>  ```

**TS**

view = [true,false,false,true]

createRoleForm(): FormGroup
  {
      return this._formBuilder.group({
          id              : [this.role.id],
          name            : [this.role.name],
         // view : 

      });
  }

I need to check the check boxes which are in the material table(view column) according to values of view list.

I think you looking for this: https://stackoverflow.com/a/43771219/4799922 — PanterP, Jan 12 '21 at 14:34

score -2 · Answer 1 · answered Jan 13 '21 at 02:12

you cant do like this because your form Controller is having only one control fot the view so you need to you ng model it helps to you like this

    <ng-container matColumnDef="view">
        <mat-header-cell *matHeaderCellDef mat-sort-header>View</mat-header-cell>
           <mat-cell *matCellDef="let element; let i=index"> 
              <mat-checkbox [(ngModel)]="element.checked" 
               [ngModelOptions]="{standalone: true}" 
               (change)=updateCheckedList(element)>
             </mat-checkbox>
           </mat-cell>
</ng-container>

inside the element use create a attribute called checked that's it

way 2 - if you want to do with an form controlled you need to use form array that's it

Bind data to checkbox in angular material table using formcontrol. Data is available as list of true,false values

1 Answers1