System.Web.UI.WebControls.Menu.PerformDataBinding C# (CSharp) Method

		protected internal override void PerformDataBinding ()
		{
			base.PerformDataBinding ();

			// Do not attempt to bind data if there is no
			// data source set.
			if (!IsBoundUsingDataSourceID && (DataSource == null)) {
				EnsureChildControlsDataBound ();
				return;
			}

			InitializeDataBindings ();

			HierarchicalDataSourceView data = GetData ("");

			if (data == null) {
				throw new InvalidOperationException ("No view returned by data source control.");
			}
			Items.Clear ();
			IHierarchicalEnumerable e = data.Select ();
			FillBoundChildrenRecursive (e, Items);

			CreateChildControlsForItems ();
			ChildControlsCreated = true;

			EnsureChildControlsDataBound ();
		}