private void _treeView_SelectionChanged(object sender, EventArgs e)
{
if (this.SelectedNode != null)
{
if (_treeView.ContextMenuStrip != null)
{
_treeView.ContextMenuStrip.Items.Clear();
_treeView.ContextMenuStrip.Items.AddRange(this.SelectedNode.GetToolStripItems(OnContextMenuClick));
}
}
OnSelectionChangeEvent(this.SelectedObject);
}