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Kenneth
620
How to get target row index drag-dropped on in UltraGrid
posted

Hi, I am doing a drag and drop implementation from one UltraGrid to another, updating just one particular cell.

How can I find out the index of the row in the target grid the user dropped onto?

The following works great if I put a fixed index, but that of course is not the idea.

 

 

 

 

 

 

 

private void ultraGridTarget_DragDrop(object sender, DragEventArgs

e)

{

 

 

 

SelectedRowsCollection selRows = (SelectedRowsCollection)e.Data.GetData(typeof(SelectedRowsCollection

));

 

 

 

//UltraGrid is configured so user can only select (and therefore dragdrop) single rows.

 

 

 

string valueString = selRows[0].Cells["Description"

].Value.ToString();

dataTableTarget.Rows[INDEX OF ROW USER DROPPED ON][

 

 

"Description"

] = valueString;

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  • 620
    Verified Answer
    posted

    OK, I think I found it. You have to do it in the time-honored Windows fashion. I thought there might be a more direct way.

    int dropIndex;
    UltraGrid dropGrid = sender as UltraGrid;
    UIElement uieOver = dropGrid.DisplayLayout.UIElement.ElementFromPoint(dropGrid.PointToClient(new Point(e.X, e.Y)));
    UltraGridRow ugrOver = uieOver.GetContext(typeof(UltraGridRow), true) as UltraGridRow;
    if (ugrOver != null)
    {
       dropIndex = ugrOver.Index;

     

    It's working for me, so I guess I answered my own question.

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