Rearrange the grid using DragDrop

[DCnagai]

Hi,

I''m using the gridcontrol in 3.3.0.0.
I want to rearrange the grid using DragDrop.
However, since the grid data in front of drop will disappear if DragDrop Event is used, it cannot rearrange.
Isn''t there any Event which memorizes only the cell position to which DragDrop came, without updating GridData?

Thanks

[Administrator]

So you want to start a D&D in a grid, but then not let the grid complete the drop? If so, you can derive the grid and override OnDargDrop and not call the base class. To see where the drag started you can handle the QueryOleDataSourceData event.

public class MyGridControl : GridControl
{
	public MyGridControl()
	{
		this.Model.QueryOleDataSourceData += new GridQueryOleDataSourceDataEventHandler(Model_QueryOleDataSourceData);
	}
	protected override void OnDragDrop(DragEventArgs drgevent)
	{
		//base.OnDragDrop (drgevent);
		this.Refresh();
		Console.WriteLine("dropped");
			
	}
	private void Model_QueryOleDataSourceData(object sender, GridQueryOleDataSourceDataEventArgs e)
	{
		Console.WriteLine(e.RangeList);
	}
}

[DCnagai]

Thanks Clay Burch.

I want to know not only where the drag started but where it dropped.

Thanks,

[Administrator]

In OnDragDrop, you can use code like:

int row, col;
Point pt = this.PointToClient(Control.MousePosition);
if(this.PointToRowCol(pt, out row, out col))
{
    //row and col is the drop cell
}