Drag and drop

kay zar

January 18, 2012 11:17

Hello.

I would like to get drag drop like this.
Within grid - only move and all content
grid to grid - only copy the first Column's value but when this column's value is already in dropped grid, I don't want to drop this item.

now within grid is okay for move and content. But grid to grid has a problem.
my 2 girds have different column count and column's id.
grid1 and grid2 have only the same first column. I only want to drop first column value of selection from grid1 to grid2,not all it's content and all row value.

thanks in advance
Kay Zar

0

• 

  Dapfor Team

  January 18, 2012 11:19

  Hello,

  It's quite easy. You have to add a handler for the Grid.DragDropContent event with a code that copies values between two grids:

   

  grid2.DragDropContent += delegate(object sender, DragDropContentEventArgs e) 
  { 
    if ((e.TargetGrid != e.Source) && (e.Source is Grid) && e.TargetRow != null) 
    { 
      Grid source = (Grid) e.Source; 
      int i = 0; 
      e.TargetGrid.Selection.Clear(); 
      e.TargetGrid.FocusedRow = null; 
      foreach (Row row in source.Selection) 
      { 
        int index = e.TargetRow.VisibleIndex + i; 
        if(index >= 0 && index < e.TargetGrid.Rows.Count) 
        { 
          Row targetRow = e.TargetGrid.Rows[index]; 
          targetRow.Selected = true;
          
          //Your logic here... 
          TestClass dataObject = targetRow.DataObject as TestClass; 
          if (dataObject != null) 
          { 
            dataObject.Value1 = (int)row["Value1"].Value; 
          } 
        } 
        i++; 
      } 
      e.TargetGrid.Invalidate(); 
      e.Handled = true; 
    } 
  };

  Kind regards,
  Dapfor

  0

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