Hi,

Thanks for posting in the forum. I am not sure if you can do that declaratively. You can do it through code by first using a LinqDataSource, then call its GetView("DefaultView") to get the default view, which would return you a DataView object. You can then assign this DataView object to the TreeView's DataSource property. The topic explains the rest in detail:

http://www.essentialobjects.com/ViewDoc.aspx?t=MenuCommon%2fDataBinding%2fpopulate_table.html

You can not use LinqDataSource directly through the TreeView's DataSourceID property because TreeView needs hierarchical data, so it only takes IHierarchicalDataSource, LinqDataSource is not.

Thanks