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作者:陶刚编译 来源:天极开发 2007年11月6日
关键字: Windows
<asp:SiteMapDataSource ID="SiteMapSource" runat="server"/> <asp:TreeView ID="MyTreeView" SkinId="BulletedList3" DataSourceId="SiteMapSource" runat="server"> <Databindings> <asp:TreeNodeBinding TextField="Title" NavigateUrlField="Url" /> </Databindings> </asp:TreeView> |
Sub GetProductCategories(ByVal node As TreeNode) Dim categories As CategoryList = WarehouseDB.GetProductCategories() Dim c As Category For Each c In categories Dim newNode As TreeNode = New TreeNode(c.Name, c.Id) newNode.SelectAction = TreeNodeSelectAction.Expand newNode.PopulateOnDemand = True node.ChildNodes.Add(newNode) Next End Sub Sub GetProductsForCategory(ByVal node As TreeNode) Dim categoryId As String = node.Value Dim products As ProductList = WarehouseDB.GetProductsForCategory(categoryId) Dim p As Product For Each p In products Dim newNode As TreeNode = New TreeNode(p.Name, p.Id) node.ChildNodes.Add(newNode) Next End Sub Sub PopulateNode(ByVal source As Object, ByVal e As TreeNodeEventArgs) Select Case e.Node.Depth Case 0 GetProductCategories(e.Node) Case 1 GetProductsForCategory(e.Node) End Select End Sub <asp:TreeView ID="TreeView1" OnTreeNodePopulate="PopulateNode" SkinId="Simple" Width="250" ExpandDepth="0" runat="server"> <Nodes> <asp:TreeNode Text="Inventory" SelectAction="Expand" PopulateOnDemand="true"/> </Nodes> </asp:TreeView> |
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