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RadTreeView functionality is gone after ajax callback

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TreeView

This is a migrated thread and some comments may be shown as answers.

6 Answers, 1 is accepted

answered on 16 Oct 2009, 02:32 PM

Hi Albert,
I made a simple scenario to replicate the problem, I created a web user control and a page to load it. I put ScriptManager in the page and a treeview and an ajaxmanager in user control and a button to remove a node from tree. when I press the button the tree becomes inactive. I could not figure out what is the problem.

Here is the code for page(webform5.aspx):

    
            <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm5.aspx.cs" Inherits="Intranet.WebForm5" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml" > 
        
            <head runat="server"> 
        
                <title></title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                <div> 
        
                    <asp:ScriptManager ID="ScriptManager1" runat="server"> 
        
                    </asp:ScriptManager> 
        
                    <asp:Panel runat=server ID=panel1></asp:Panel> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

and here is the code behind of the page(webform5.aspx.cs):

    
            using System; 
        
            using System.Collections.Generic; 
        
            using System.Linq; 
        
            using System.Web; 
        
            using System.Web.UI; 
        
            using System.Web.UI.WebControls; 
        
            namespace Intranet 
        
            { 
        
                public partial class WebForm5 : System.Web.UI.Page 
        
                { 
        
                    protected void Page_Load(object sender, EventArgs e) 
        
                    { 
        
                        panel1.Controls.Add(Page.LoadControl("~/webform4.ascx")); 
        
                    } 
        
                } 
        
            }

and here is the user control html (webform4.ascx):

    
            <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebForm4.ascx.cs" Inherits="Intranet.WebForm4" %> 
        
                <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"  
        
                    DefaultLoadingPanelID="RadAjaxLoadingPanel1"> 
        
                    <AjaxSettings> 
        
                        <telerik:AjaxSetting AjaxControlID="Button1"> 
        
                            <UpdatedControls> 
        
                                <telerik:AjaxUpdatedControl ControlID="RadTreeView1" /> 
        
                            </UpdatedControls> 
        
                        </telerik:AjaxSetting> 
        
                    </AjaxSettings> 
        
                </telerik:RadAjaxManager> 
        
                <div> 
        
                </div> 
        
                <telerik:RadTreeView ID="RadTreeView1" Runat="server"> 
        
                    <Nodes> 
        
                        <telerik:RadTreeNode runat="server" Text="Root RadTreeNode1"> 
        
                            <Nodes> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 1"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 2"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 3"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 4"> 
        
                                </telerik:RadTreeNode> 
        
                            </Nodes> 
        
                        </telerik:RadTreeNode> 
        
                        <telerik:RadTreeNode runat="server" Text="Root RadTreeNode2"> 
        
                            <Nodes> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 1"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 2"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 3"> 
        
                                </telerik:RadTreeNode> 
        
                            </Nodes> 
        
                        </telerik:RadTreeNode> 
        
                        <telerik:RadTreeNode runat="server" Text="Root RadTreeNode3"> 
        
                            <Nodes> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 1"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 2"> 
        
                                </telerik:RadTreeNode> 
        
                                <telerik:RadTreeNode runat="server" Text="Child RadTreeNode 3"> 
        
                                </telerik:RadTreeNode> 
        
                            </Nodes> 
        
                        </telerik:RadTreeNode> 
        
                    </Nodes> 
        
                </telerik:RadTreeView> 
        
                <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" /> 
        
                <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" Runat="server"  
        
                    Skin="Default"> 
        
                </telerik:RadAjaxLoadingPanel>

and here is the code behind of the control(webform4.ascx.cs):

    
            using System; 
        
            using System.Collections.Generic; 
        
            using System.Linq; 
        
            using System.Web; 
        
            using System.Web.UI; 
        
            using System.Web.UI.WebControls; 
        
            namespace Intranet 
        
            { 
        
                public partial class WebForm4 : UserControl 
        
                { 
        
                    protected void Page_Load(object sender, EventArgs e) 
        
                    { 
        
                    } 
        
                    protected void Button1_Click(object sender, EventArgs e) 
        
                    { 
        
                        RadTreeView1.Nodes.RemoveAt(0); 
        
                    } 
        
                } 
        
            }

Best Regards
Amir