void WhenDragDrop(DragEventArgs e)
{
if (null == _manager)
{
return;
}
var point = treeView1.PointToClient(new Point(e.X, e.Y));
var node = treeView1.GetNodeAt(point);
if (null == node)
{
return;
}
if (node.Tag is ProjectId)
{
var data = (string)e.Data.GetData(DataFormats.StringFormat);
_manager.DropToProject(data, (ProjectId)node.Tag);
}
}