private void Tree_DragDrop(object sender, DragEventArgs e)
{
try
{
TreeNode target = GetSuitableDropTarget(e);
if (target == null)
{
e.Effect = DragDropEffects.None;
}
else
{
Entity newParent = (Entity)target.Tag;
TreeNode[] nodeList = SelectedNodes;
int i = 0;
Entity[] entities = new Entity[nodeList.Length];
foreach (TreeNode node in nodeList)
{
entities[i] = (Entity)node.Tag;
i++;
}
if ((e.KeyState & 8) == 8) //check CTRL
{
ApplicationController.CopyEntity(entities, newParent);
}
else
{
ApplicationController.MoveEntity(entities, newParent);
}
((TreeNode)newParent.Tag).Expand();
}
}
catch (Exception ex)
{
ExceptionBox.Show(ex);
}
}