Reorder mat-table rows with angular material's drag-and-drop

Reorder mat-table rows with angular material's drag-and-drop

To enable drag-and-drop reordering of rows in an Angular Material mat-table, you can utilize the cdkDrag directive provided by Angular CDK (Component Dev Kit). Below is a step-by-step guide on how to implement drag-and-drop reordering of rows in a mat-table:

  1. Install Angular CDK if you haven't already:
npm install @angular/cdk
  1. Import DragDropModule into your Angular module (e.g., app.module.ts):
import { DragDropModule } from '@angular/cdk/drag-drop'; @NgModule({ imports: [ // Other imports... DragDropModule, ], }) export class AppModule { }
  1. Add the cdkDrag directive to the row of your mat-table:
<mat-table [dataSource]="dataSource"> <!-- Header and columns here --> <!-- Row with cdkDrag directive --> <mat-row *matRowDef="let row; columns: displayedColumns;" cdkDrag></mat-row> </mat-table>
  1. Handle row reordering in your component:
import { CdkDragDrop, moveItemInArray } from '@angular/cdk/drag-drop'; @Component({ selector: 'app-your-component', templateUrl: './your-component.component.html', styleUrls: ['./your-component.component.css'] }) export class YourComponent implements OnInit { // Your data source for the mat-table dataSource: MatTableDataSource<any>; // Other component properties... constructor() { } ngOnInit() { // Initialize your data source // Example: this.dataSource = new MatTableDataSource<any>(yourData); } // Handle row reordering drop(event: CdkDragDrop<any[]>) { moveItemInArray(this.dataSource.data, event.previousIndex, event.currentIndex); this.dataSource._updateChangeSubscription(); // Manually trigger data source change detection } }
  1. Add the drop event handler to the mat-table:
<mat-table [dataSource]="dataSource" cdkDropListGroup (cdkDropListDropped)="drop($event)"> <!-- Header and columns here --> <!-- Row with cdkDrag directive --> <mat-row *matRowDef="let row; columns: displayedColumns;" cdkDrag></mat-row> </mat-table>

That's it! Now you should be able to drag and drop rows within the mat-table to reorder them. Make sure to replace yourData with your actual data source. You may also need to adjust the data source type (any[]) in the CdkDragDrop event handler based on your data structure.

Examples

  1. How to implement drag-and-drop functionality in Angular Material mat-table?

    • Description: This query seeks guidance on integrating drag-and-drop functionality into an Angular Material mat-table.
    import { CdkDragDrop, moveItemInArray } from '@angular/cdk/drag-drop'; // In your component class: drop(event: CdkDragDrop<any[]>) { moveItemInArray(this.dataSource.data, event.previousIndex, event.currentIndex); }

  2. Angular Material mat-table reorder rows example

    • Description: This query aims to find a complete example demonstrating how to reorder rows in an Angular Material mat-table using drag-and-drop.
    <table mat-table [dataSource]="dataSource" cdkDropList (cdkDropListDropped)="drop($event)"> <!-- Table content here --> </table>

  3. How to make rows draggable in Angular Material table?

    • Description: This query focuses on enabling row draggability within an Angular Material table.
    <tr mat-row *matRowDef="let row; columns: displayedColumns" cdkDrag></tr>

  4. Angular Material table drag-and-drop sorting

    • Description: This query looks for information on implementing drag-and-drop sorting functionality in an Angular Material table.
    <tr mat-row *matRowDef="let row; columns: displayedColumns" cdkDrag></tr>

  5. Implementing drag-and-drop in Angular Material data table

    • Description: This query seeks guidance on integrating drag-and-drop functionality into an Angular Material data table.
    import { CdkDragDrop, moveItemInArray } from '@angular/cdk/drag-drop'; drop(event: CdkDragDrop<any[]>) { moveItemInArray(this.dataSource.data, event.previousIndex, event.currentIndex); }

  6. Angular Material table row reordering tutorial

    • Description: This query aims to find a tutorial providing step-by-step instructions for reordering rows in an Angular Material table.
    <table mat-table [dataSource]="dataSource" cdkDropList (cdkDropListDropped)="drop($event)"> <!-- Table content here --> </table>

  7. Angular Material mat-table drag-and-drop sorting example

    • Description: This query seeks a practical example demonstrating how to implement drag-and-drop sorting in an Angular Material mat-table.
    import { CdkDragDrop, moveItemInArray } from '@angular/cdk/drag-drop'; drop(event: CdkDragDrop<any[]>) { moveItemInArray(this.dataSource.data, event.previousIndex, event.currentIndex); }

  8. How to reorder rows in Angular Material table using drag-and-drop?

    • Description: This query looks for instructions on reordering rows within an Angular Material table by utilizing drag-and-drop functionality.
    <tr mat-row *matRowDef="let row; columns: displayedColumns" cdkDrag></tr>

  9. Angular Material table row drag-and-drop tutorial

    • Description: This query aims to find a tutorial explaining how to enable drag-and-drop functionality for rows in an Angular Material table.
    import { CdkDragDrop, moveItemInArray } from '@angular/cdk/drag-drop'; drop(event: CdkDragDrop<any[]>) { moveItemInArray(this.dataSource.data, event.previousIndex, event.currentIndex); }

  10. How to enable drag-and-drop sorting in Angular Material data table?

    • Description: This query seeks guidance on enabling drag-and-drop sorting functionality in an Angular Material data table.
    <table mat-table [dataSource]="dataSource" cdkDropList (cdkDropListDropped)="drop($event)"> <!-- Table content here --> </table>

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