Question

The follwoing code refuses to work for drag and drop on the right mouse click. When I right click the mouse I do see the proper context menu but I am not able to drag and drop although I do have an event handler for DragDrop , DragEnter, and DragOver. Is it because I can’t have context menu and drag and drop on the same right click? what am I doing wrong? Your help is very much appreciated.

private void treeList1_MouseDown(object sender, MouseEventArgs e)
{
    TreeList tree = sender as TreeList;
    Point pt = tree.PointToClient(MousePosition);
    TreeListHitInfo info = tree.CalcHitInfo(pt);

    if (e.Button == MouseButtons.Right && ModifierKeys == Keys.None && tree.State == TreeListState.Regular)
    {
        if (nodeType == typeof(X))
        {
            tree.ContextMenuStrip = XContextMenu;
            tree.FocusedNode = info.Node;
            treeList1.AllowDrop = true;
            tree.AllowDrop = true;
        }
        currentFocusNode = tree.FocusedNode;
        return;
    }
}

Answer 1

You’re not calling the DoDragDrop method.

Here is an example of using DragDrop

In your example, add something like this before the return;

treeList1.DoDragDrop(currentFocusNode, DragDropEffects.Copy);