/// <summary>
/// Event handler for the OnCollapse event.
/// </summary>
/// <param name="e">Event arguments</param>
/// <returns>true to bubble, false to cancel</returns>
protected virtual bool OnCollapse(EventArgs e)
{
if (Expanded)
{
Expanded = false;
// If this node was selected, unselect it and make the parent the selected node
// Note: The client handles this nicely uplevel; we only need to do this downlevel
if (!ParentTreeView.IsUpLevel)
{
String strNewIndex = GetNodeIndex();
String strOldIndex = ParentTreeView.SelectedNodeIndex;
if (strOldIndex.StartsWith(strNewIndex) && strOldIndex != strNewIndex)
{
TreeViewSelectEventArgs e2 = new TreeViewSelectEventArgs(strOldIndex, strNewIndex);
ParentTreeView.DoSelectedIndexChange(e2);
// Since this only gets called downlevel, we don't need to worry about other selection
// changes being queued-- this will be the only one, and so we can queue an event for it
ParentTreeView._eventList.Add("s");
ParentTreeView._eventList.Add(e2);
}
}
return(true);
}
else
{
return(false);
}
}