CODEWITHSUNDEEP
angularangular-material
Kay
Kay

Reputation: 19718

Angular + Material - How to add custom columns in a table (Mat-Table)

How do you add a custom column in a mat table.

Such as adding an edit column containing an edit icon with a click event containing the id of the current element.

<div class="example-container mat-elevation-z8">
  <mat-table #table [dataSource]="dataSource">

    <!--- Note that these columns can be defined in any order.
          The actual rendered columns are set as a property on the row definition" -->

    <!-- Position Column -->
    <ng-container matColumnDef="position">
      <mat-header-cell *matHeaderCellDef> No. </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.position}} </mat-cell>
    </ng-container>

    <!-- Name Column -->
    <ng-container matColumnDef="name">
      <mat-header-cell *matHeaderCellDef> Name </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.name}} </mat-cell>
    </ng-container>

    <!-- Weight Column -->
    <ng-container matColumnDef="weight">
      <mat-header-cell *matHeaderCellDef> Weight </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.weight}} </mat-cell>
    </ng-container>

    <!-- Color Column -->
    <ng-container matColumnDef="symbol">
      <mat-header-cell *matHeaderCellDef> Symbol </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.symbol}} </mat-cell>
    </ng-container>
    
    <mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
    <mat-row *matRowDef="let row; columns: displayedColumns;"></mat-row>
  </mat-table>
</div>

Upvotes: 22

Views: 73078

Answers (4)

Sachin Parashar
Sachin Parashar

Reputation: 1116

To add an extra column for your buttons/actions, you first need to add that column to the displayed columns list in the component:

  displayedColumns: string[] = ['name', 'email', 'phone', 'customColumn'];

and then add an extra column in the html and place your button inside mat-cell:

    <ng-container matColumnDef="customColumn">
      <th mat-header-cell *matHeaderCellDef></th>
      <td mat-cell *matCellDef="let person"> 
          <button mat-button>Edit</button>
      </td>
    </ng-container>

And it's done. It is that easy.

Upvotes: 5

Ignacio Rossi
Ignacio Rossi

Reputation: 86

What you are trying to achieve is also made in this package angular4-material-table, which add some structure to allow row insertion, edition and deletion. You have an example to add custom actions columns on this plunkr.

You can define a column with your desired buttons/actions:

<mat-table [dataSource]="dataSource">
    <ng-container matColumnDef="column1"> 
        <mat-header-cell *matHeaderCellDef> column 1 title </mat-header-cell>
        <mat-cell *matCellDef="let row">
            <!-- col 1 -->
        </mat-cell>
    </ng-container> 
    <ng-container matColumnDef="column2"> 
        <mat-header-cell *matHeaderCellDef> column 2 title </mat-header-cell>
        <mat-cell *matCellDef="let row">
            <!-- col 2 -->
        </mat-cell>
    </ng-container>
    <ng-container matColumnDef="actionsColumn">
        <mat-header-cell *matHeaderCellDef>
            <button (click)="createNew()">Create new</button>
        </mat-header-cell>
        <mat-cell *matCellDef="let row">
            <button (click)="edit()">Edit</button>
            <button (click)="cancelOrDelete()">Cancel</button>
        </mat-cell>
    </ng-container>
    <mat-header-row *matHeaderRowDef="displayedColumns">
    </mat-header-row>
    <mat-row *matRowDef="let row; columns: displayedColumns;">
    </mat-row>
</mat-table>

You must include the column in the displayedColumns string array:

displayedColumns = ['column1', 'column2', 'actionsColumn'];

Upvotes: 5

kashpatel
kashpatel

Reputation: 725

Here is the one way to do it. It might help someone down the road.

table.html

    <ng-container matColumnDef="action">
       <th mat-header-cell *matHeaderCellDef> Action </th>
       <td mat-cell *matCellDef>
           <ng-container *ngTemplateOutlet="templateRef"></ng-container>
       </td>
   </ng-container>

table.component

 @Input() templateRef: TemplateRef<any>;

table-parent.html

<app-data-table [dataSource]="dataSource" [templateRef]="template">
   <ng-template #template>
      <button mat-icon-button color="warn">
         <mat-icon>delete</mat-icon>
      </button>
      <button mat-icon-button color="primary">
         <mat-icon>edit</mat-icon>
      </button>
   </ng-template>
</app-data-table>

Hope that saves someone couple hours of search :)

Upvotes: 16

Juanker
Juanker

Reputation: 794

On your TableBasicExample.ts add

export class TableBasicExample {
  displayedColumns = ['position', 'name', 'weight', 'symbol', 'customColumn1'];
  dataSource = new ExampleDataSource();
}

And in your html file add the column:

<ng-container matColumnDef="customColumn1">
  <mat-header-cell *matHeaderCellDef> Custom Title</mat-header-cell>
  <mat-cell *matCellDef="let element"> {{element.position}} </mat-cell>
</ng-container>

Upvotes: 36

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