protected override void OnDragOver(DragEventArgs e)
{
base.OnDragOver(e);
Point clientcoordinate = PointToClient(new Point(e.X, e.Y));
ExtTreeNode node = GetNodeAt(clientcoordinate) as ExtTreeNode;
if (node != null)
{
DragDropEffects effect = DragDropEffects.None;
if ((e.KeyState & 8) > 0) // CTRL key pressed.
{
effect = DragDropEffects.Copy;
}
else
{
effect = DragDropEffects.Move;
}
e.Effect = node.GetDragDropEffect(e.Data, effect);
if (e.Effect != DragDropEffects.None)
{
SelectedNode = node;
}
}
}
void HandleDragOver(DragEventArgs e, ExtTreeNode node)
{
DragDropEffects effect = DragDropEffects.None;
if ((e.KeyState & 8) > 0) // CTRL key pressed.
{
effect = DragDropEffects.Copy;
}
else
{
effect = DragDropEffects.Move;
}
e.Effect = node.GetDragDropEffect(e.Data, effect);
}
void HandleDragOver(DragEventArgs e, ExtTreeNode node)
{
DragDropEffects effect = DragDropEffects.None;
if ((e.KeyState & 8) > 0) { // CTRL key pressed.
effect = DragDropEffects.Copy;
} else {
effect = DragDropEffects.Move;
}
e.Effect = node.GetDragDropEffect(e.Data, effect);
}