How to drag and drop the merged Cells in WinForms GridControl?

Dragging and dropping for merged cells

By Default, WinForms Grid Control Drag and Drop operation is done for merged cells. But merge cell cannot be moved as merged cell. For more information, please refer the below image,

Solution

In order to achieve drag and drop of merged cells, QueryCanOleDragRange event can be used and merged cell will be considered as individual cells by adding the drag and drop range to selection. So that merge cells also can be dragged to another place as merge cells.

C#

//QueryCanOleDragRange event.
void gridControl1_QueryCanOleDragRange(object sender, GridQueryCanOleDragRangeEventArgs e)
{
      if (e.Range.Left != e.Range.Right || e.Range.Top!=e.Range.Bottom)
      this.gridControl1.Selections.Add(e.Range);
}

VB

‘QueryCanOleDragRange event.
Private Sub gridControl1_QueryCanOleDragRange(ByVal sender As Object, ByVal e As GridQueryCanOleDragRangeEventArgs)
    If e.Range.Left <> e.Range.Right OrElse e.Range.Top<>e.Range.Bottom Then
        Me.gridControl1.Selections.Add(e.Range)
    End If
End Sub
 

Screenshot

Samples:

C#: DragDrop_MergedCells_CS

VB: DragDrop_MergedCells-VB 

Reference link: https://help.syncfusion.com/windowsforms/grid-control/drag-and-drop#blocking-the-data-before-dragging

Conclusion

I hope you enjoyed learning about how to drag and drop the merged Cells in WinForms GridControl.

You can refer to our WinForms Grid Control’s feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms Grid Control documentation to understand how to present and manipulate data.

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