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RadTreeView LinqDatasource binding not working

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Axel asked on 26 Jan 2010, 06:58 PM

My code as I see it is exactly the same as the demo explaining this (I think).
Hope someone can find out why mt Radtree is not displaying any data.

This is my code:

    
                <telerik:RadTreeView ID="RadTreeView1" runat="server" Width="100%" Height="250px" 
        
                      DataFieldID="code" DataFieldParentID="parentcode" 
        
                    DataTextField="absencereasonname" DataValueField="code"   
        
                    DataSourceID="LinqDataSource1">  
        
                    <DataBindings> 
        
                        <telerik:RadTreeNodeBinding Depth="0" Expanded="true" /> 
        
                    </DataBindings> 
        
                </telerik:RadTreeView> 
        
                <asp:LinqDataSource ID="LinqDataSource1" runat="server"    
        
                    ContextTypeName="Orbit.Benjamin.DB.PartyDataContext"   
        
                    TableName="AbsenceReasons"   
        
                    Select="new (code, absencereasonname, parentcode)">  
        
                </asp:LinqDataSource>

and this is my DB table structure

    
                [code] [nvarchar](10) NOT NULL,  
        
                [absencereasonname] [nvarchar](100) NULL,  
        
                [parentcode] [nvarchar](10) NULL,

I am calling DataBind() on PageLoad but my tree returns with 0 nodes.
This looks simple enough but I can not find out what I am doing wrong.

reg.
Axel

3 Answers, 1 is accepted

answered on 26 Jan 2010, 11:30 PM

Hi again,

Also tried to do it this way (in PageLoad) without any luck. Even tried a different table this time.
This simple code is not working at my end. What can be wrong?

    
                            PageManagementDataContext db = new PageManagementDataContext();  
        
                            List<WebPage> x = db.WebPages.ToList();  
        
                            RadTreeView1.DataTextField = "pagename";  
        
                            RadTreeView1.DataFieldID = "id";  
        
                            RadTreeView1.DataFieldParentID = "parentpageid";  
        
                            RadTreeView1.DataSource = x;  
        
                            RadTreeView1.DataBind();

(Manually populating the nodes works but if databinding can be done then that's the way I sould do it.