private void PART_Tree_OnNodeChanged(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeChangedEventArgs e)
{
if (e.ChangeType == NodeChangeType.Add)
{
ResourceBrowserItem item = e.Node.Content as ResourceBrowserItem;
if (item == null)
{
return;
}
if (item.Items.IsInvalid())
{
try
{
if (System.IO.Directory.GetDirectories(item.FullPath).Any())
{
e.Node.IsExpandButtonVisible = DevExpress.Utils.DefaultBoolean.True;
}
else
{
e.Node.IsExpandButtonVisible = DevExpress.Utils.DefaultBoolean.False;
}
}
catch
{
e.Node.IsExpandButtonVisible = DevExpress.Utils.DefaultBoolean.True;
}
}
else
{
e.Node.IsExpandButtonVisible = DevExpress.Utils.DefaultBoolean.True;
}
}
}
void view_NodeChanged(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeChangedEventArgs e)
{
if (e.ChangeType == NodeChangeType.Add)
{
FileSystemItemModelBase item = e.Node.Content as FileSystemItemModelBase;
if (item.ItemType == "File")
{
e.Node.IsExpandButtonVisible = DevExpress.Utils.DefaultBoolean.False;
}
}
}
/// <summary>
/// 节点改变时触发
/// </summary>
private void view_NodeChanged(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeChangedEventArgs e)
{
if (All_OnNodeChanged != null)
{
All_OnNodeChanged(sender, e);
}
if (this.OnNodeChanged != null)
{
this.OnNodeChanged(sender, e);
}
}
private void TreeListView_NodeChanged(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeChangedEventArgs e)
{
if (e.ChangeType == NodeChangeType.Add)
{
Dispatcher.BeginInvoke(new Action(() => {
if (e.Node.ParentNode != null)
{
e.Node.ParentNode.IsExpanded = true;
}
}));
}
}