Set expanded state on load...

[Eric]

I'm trying to set the expanded state on load. I'm using the following RowLoaded handler.

 

private void PspTreeListView_RowLoaded(object sender, Telerik.Windows.Controls.GridView.RowLoadedEventArgs e)
{
    PspTreeViewObject pspTreeViewObject = e.DataElement as PspTreeViewObject;
    TreeListViewRow treeListViewRow = e.Row as TreeListViewRow;

    if (treeListViewRow != null && pspTreeViewObject != null)
    {
        treeListViewRow.IsExpanded = pspTreeViewObject.IsExpanded;
    }
}>

 

This works to set the expanded state properly, but then none of the items in the treeview can be expanded or contracted. I tried setting IsExpandable to true for the items, but that didn't work either. It seems that once the initial state is set, it cannot be changed.

Any ideas on how I can fix this?

 

[Dimitrina]

Hi,

 If you want to expand all the hierarchy items initially, you should set the AutoExpandItems property of the TreeListView to True.

Is this what do you need?

Kind regards,
Didie
the Telerik team

[Eric]

Sorry I wasn't clearer.

I need to have a treeview where the initial state has some nodes expanded and some nodes collapsed, and the user can then expand or collapse nodes at will.

[Dimitrina]

Hi,

 For such a scenario, I would recommend you to check this forum post.

Regards,
Didie
the Telerik team