public void ToggleItem(object tag)
{
DependentTreeNode node = NodeFromTag(tag);
if (node != null)
{
node.OnSetExpanded();
node.OnGetRecursive();
node.Toggle();
}
}
public bool IsItemExpanded(object tag)
{
DependentTreeNode node = NodeFromTag(tag);
if (node != null)
{
return(node.IsExpanded);
}
else
{
return(false);
}
}
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (obj.GetType() != GetType())
{
return(false);
}
DependentTreeNode that = (DependentTreeNode)obj;
return(Object.Equals(base.Tag, that.Tag));
}
private DependentTreeNode RecursiveNodeFromTag(TreeNodeCollection nodes, object tag)
{
foreach (DependentTreeNode node in nodes)
{
if (object.Equals(node.Tag, tag))
{
return(node);
}
DependentTreeNode found = RecursiveNodeFromTag(node.Nodes, tag);
if (found != null)
{
return(found);
}
}
return(null);
}
/// <summary>
/// Handle changes to item text.
/// </summary>
/// <param name="e">Specifies the modified text.</param>
protected override void OnAfterLabelEdit(NodeLabelEditEventArgs e)
{
if (_updating == 0 && !e.CancelEdit && e.Label != null)
{
DependentTreeNode item = (DependentTreeNode)e.Node;
item.Text = e.Label;
// The assignment was only a suggestion. See if it was honored.
if (item.Text != e.Label)
{
e.CancelEdit = true;
}
}
else
{
e.CancelEdit = true;
}
base.OnAfterLabelEdit(e);
}
