private void DictionaryView_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
Point pt = DictionaryView.PointToClient(Cursor.Position);
TreeNode Node = DictionaryView.GetNodeAt(pt);
DictionaryView.SelectedNode = Node;
contextMenuStrip1.Show(DictionaryView, pt);
}
}