Spread WPF Documentation
DragDropBlock Event (GcSpreadSheet)
Example 


GrapeCity.Windows.SpreadSheet.UI Namespace > GcSpreadSheet Class : DragDropBlock Event
Occurs when the user drags and drops a range of cells.
Syntax
'Declaration
 
Public Event DragDropBlock As System.EventHandler(Of DragDropBlockEventArgs)
'Usage
 
Dim instance As GcSpreadSheet
Dim handler As System.EventHandler(Of DragDropBlockEventArgs)
 
AddHandler instance.DragDropBlock, handler
public event System.EventHandler<DragDropBlockEventArgs> DragDropBlock
Event Data

The event handler receives an argument of type DragDropBlockEventArgs containing data related to this event. The following DragDropBlockEventArgs properties provide information specific to this event.

PropertyDescription
(Inherited from System.ComponentModel.CancelEventArgs)
Gets the column count of the cell range being dragged.  
Gets whether the source range is copied.  
Gets the CopyOption value for the drag and drop operation.  
Gets the column index of the top left cell of the source range (range being dragged).  
Gets the row index of the top left cell of the source range (range being dragged).  
Gets whether the source range is inserted.  
Gets the row count of the cell range being dragged.  
Gets the column index of the bottom right cell of the destination range (where selection is dropped).  
Gets the row index of the top left cell of the destination range (where selection is dropped).  
Example
This example uses the DragDropBlock event.
gcSpreadSheet1.DragDropBlock += new EventHandler<DragDropBlockEventArgs>(gcSpread1_DragDropBlock);
 gcSpreadSheet1.DragDropBlockCompleted += new EventHandler<DragDropBlockCompletedEventArgs>(gcSpread1_DragDropBlockCompleted);

 void gcSpread1_DragDropBlock(object sender, DragDropBlockEventArgs e)
 {
       if (e.ToRow > 10 || e.ToColumn > 10)
           e.Cancel = true; 
 }

 void gcSpread1_DragDropBlockCompleted(object sender, DragDropBlockCompletedEventArgs e)
  {
       if (e.Copy == true && e.Insert == true)
           MessageBox.Show("Copied insert action has been completed");                     
  }
Private Sub GcSpreadSheet1_DragDropBlock(sender As System.Object, e As GrapeCity.Windows.SpreadSheet.UI.DragDropBlockEventArgs)
        If (e.ToRow > 10 Or e.ToColumn > 10) Then
            e.Cancel = True
        End If
    End Sub

    Private Sub GcSpreadSheet1_DragDropBlockCompleted(sender As System.Object, e As GrapeCity.Windows.SpreadSheet.UI.DragDropBlockCompletedEventArgs)
        If (e.Copy = True And e.Insert = True) Then
            MessageBox.Show("Copied insert action has been completed")
        End If
    End Sub
See Also