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ExpandChildNodes

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Martin asked on 20 May 2008, 11:53 AM

Hi
I am trying a really simple ExplandChildNodes example. The code behind is calling ExpandChildNodes in the OnLoad handler. However, it does not seem to expand the children. Have I missed something simple?

    
            <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="IPSCWebClient.WebForm1" %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <!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>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server">  
        
                <div> 
        
                    <asp:ScriptManager runat="server" ID="sss">  
        
                    </asp:ScriptManager> 
        
                    <telerik:RadTreeView ID="RadTreeView1" runat="server" ShowLineImages="true">  
        
                        <Nodes> 
        
                            <telerik:RadTreeNode Text="Web Display Window">  
        
                                <Nodes> 
        
                                    <telerik:RadTreeNode Text="Display Area (Ribbon Bar)">  
        
                                        <Nodes> 
        
                                            <telerik:RadTreeNode Text="Tile Layout (1 way)"/>  
        
                                        </Nodes> 
        
                                    </telerik:RadTreeNode> 
        
                                </Nodes> 
        
                            </telerik:RadTreeNode> 
        
                        </Nodes> 
        
                    </telerik:RadTreeView> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

I have this handler

    
                Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load  
        
                    Me.RadTreeView1.Nodes(0).ExpandChildNodes()  
        
                End Sub

Thanks,
Martin

2 Answers, 1 is accepted

answered on 20 May 2008, 02:34 PM

Hi, 

I think that you can put this attribute for each node in html :

Expanded="true"

            <telerik:RadTreeView ID="RadTreeView1" runat="server" ShowLineImages="true">     
        
                        <Nodes>    
        
                            <telerik:RadTreeNode Text="Web Display Window" Expanded="true">     
        
                                <Nodes>    
        
                                    <telerik:RadTreeNode Text="Display Area (Ribbon Bar)" Expanded="true">     
        
                                        <Nodes>    
        
                                            <telerik:RadTreeNode Text="Tile Layout (1 way)" Expanded="true"/>     
        
                                        </Nodes>    
        
                                    </telerik:RadTreeNode>    
        
                                </Nodes>    
        
                            </telerik:RadTreeNode>    
        
                        </Nodes>    
        
                    </telerik:RadTreeView>

Regards
Hussein

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ExpandChildNodes

2 Answers, 1 is accepted