Drag&Drop from RadGridView to RadPanel

[Роберт]

Please, see the subject.

Is it possible? Any help, please.

[Ivan Todorov]

Hi Vitali Kirakossiants,

Yes, this can be achieved using some standard Windows Forms methods. The following code snippet demonstrates dragging a cell into a RadPanel and displaying it as a RadLabel:

GridDataCellElement hoveredCell = null;

public GridDragDrop()
{
    InitializeComponent();
    radPanel1.AllowDrop = true;

    radPanel1.DragDrop += new DragEventHandler(radPanel1_DragDrop);
    radPanel1.DragOver += new DragEventHandler(radPanel1_DragOver);

    radGridView1.MouseMove += new MouseEventHandler(radGridView1_MouseMove);
}

void radPanel1_DragOver(object sender, DragEventArgs e)
{
    e.Effect = e.Data.GetDataPresent(DataFormats.Text) ?
         DragDropEffects.Copy : DragDropEffects.None;
}

void radGridView1_MouseMove(object sender, MouseEventArgs e)
{
    if (e.Button == System.Windows.Forms.MouseButtons.Left && hoveredCell!=null)
    {
        radGridView1.DoDragDrop(hoveredCell.Value + "", DragDropEffects.Copy | DragDropEffects.Move);
    }

    if (e.Button == System.Windows.Forms.MouseButtons.None)
    {
        GridDataCellElement cellElement = radGridView1.ElementTree.GetElementAtPoint(e.Location) as GridDataCellElement;
        if (cellElement != null)
        {
            hoveredCell = cellElement;
        }
    }
}

void radPanel1_DragDrop(object sender, DragEventArgs e)
{
    RadLabel label = new RadLabel();
    label.Location = radPanel1.PointToClient(new Point(e.X, e.Y));
    label.Text = e.Data.GetData(DataFormats.Text).ToString();
    radPanel1.Controls.Add(label);
}

I hope this helps. If you have further questions, feel free to ask.

Greetings,

Ivan Todorov

the Telerik team