RadODataDataSource + RadComboBox - No Items

[Markus]

Hi,

I have built in a RadComboBox in a .net-Controltemplate with the following code:

<telerik:RadODataDataSource runat="server" ID="RadODataDataSource1" >
    <Transport>
        <Read Url="http://sharepoint/_vti_bin/ListData.svc/" DataType="XML" />
    </Transport>
    <Schema>
        <telerik:DataModel ModelID="Steuerkennzeichen" Set="Steuerkennzeichen">
            <telerik:DataModelField FieldName="Titel"  />
            <telerik:DataModelField FieldName="Display_Text" />
        </telerik:DataModel>
    </Schema>
</telerik:RadODataDataSource>

<telerik:RadComboBox
    ID="RadComboBox1"
    runat="server"
    EnableLoadOnDemand="true"
    ODataDataSourceID="RadODataDataSource1"
    DataModelID="Steuerkennzeichen"
    DataTextField="Display_Text"
    DataValueField="Titel"
    ShowMoreResultsBox="true"
    ItemsPerRequest="4">
</telerik:RadComboBox>

I found the following thread: http://www.telerik.com/community/forums/aspnet-ajax/odata-datasource/no-data-from-odata.aspx
but this did not help.

My Result (Fiddler) looks like this:

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<feed xml:base="http://sharepoint/_vti_bin/ListData.svc/" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns="http://www.w3.org/2005/Atom">
  <title type="text">Steuerkennzeichen</title>
  <id>http://sharepoint/_vti_bin/ListData.svc/Steuerkennzeichen/<;/id>
  <updated>2012-12-20T08:34:35Z</updated>
  <link rel="self" title="Steuerkennzeichen" href="Steuerkennzeichen" />
  <entry m:etag="W/"1"">
    <id>http://sharepoint/_vti_bin/ListData.svc/Steuerkennzeichen(1)</id>
    <title type="text">19%</title>
    <updated>2012-11-07T16:45:48+01:00</updated>
    <author>
      <name />
    </author>
    <link rel="edit" title="SteuerkennzeichenItem" href="Steuerkennzeichen(1)" />
    <category term="Microsoft.SharePoint.DataService.SteuerkennzeichenItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
    <content type="application/xml">
      <m:properties>
        <d:Steuerkennzeichen>50</d:Steuerkennzeichen>
        <d:Display_Text>50 / 19%</d:Display_Text>
      </m:properties>
    </content>
  </entry>
  <entry m:etag="W/"1"">
    <id>http://sharepoint/_vti_bin/ListData.svc/Steuerkennzeichen(2)</id>
    <title type="text">7%</title>
    <updated>2012-11-07T16:45:57+01:00</updated>
    <author>
      <name />
    </author>
    <link rel="edit" title="SteuerkennzeichenItem" href="Steuerkennzeichen(2)" />
    <category term="Microsoft.SharePoint.DataService.SteuerkennzeichenItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
    <content type="application/xml">
      <m:properties>
        <d:Steuerkennzeichen>51</d:Steuerkennzeichen>
        <d:Display_Text>51 / 7%</d:Display_Text>
      </m:properties>
    </content>
  </entry>
  <entry m:etag="W/"1"">
    <id>http://sharepoint/_vti_bin/ListData.svc/Steuerkennzeichen(3)</id>
    <title type="text">0</title>
    <updated>2012-11-07T16:46:07+01:00</updated>
    <author>
      <name />
    </author>
    <link rel="edit" title="SteuerkennzeichenItem" href="Steuerkennzeichen(3)" />
    <category term="Microsoft.SharePoint.DataService.SteuerkennzeichenItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
    <content type="application/xml">
      <m:properties>
        <d:Steuerkennzeichen>0</d:Steuerkennzeichen>
        <d:Display_Text>0 / 0</d:Display_Text>
      </m:properties>
    </content>
  </entry>
</feed>

Does anybody know, why my Combobox does not show any values to choose?

Kind Regards,
Markus

[Cat Cheshire]

You can take a look at these blog posts:

http://blogs.msdn.com/b/astoriateam/archive/2009/10/21/using-data-services-over-sharepoint-2010-part-1-getting-started.aspx
http://blogs.msdn.com/b/astoriateam/archive/2009/10/29/using-data-services-over-sharepoint-2010-part-2-crud.aspx