<telerik:RadDocking
   x:Name="Docking"
   BorderBrush="White"
   BorderThickness="2"
   Margin="5"
   Background="{x:Null}">
   
   <telerik:RadDocking.DocumentHost>
    <telerik:RadSplitContainer>
     <telerik:RadPaneGroup>
    
        (Error occurs here...)
      <telerik:RadPane Header="Test 1">
       <TextBlock TextWrapping="Wrap"
        Text="A test for the docking panel"></TextBlock>
      </telerik:RadPane>

        (and again here..)
      <telerik:RadPane Header="Description" CanFloat="False">
      </telerik:RadPane>

     </telerik:RadPaneGroup>
    </telerik:RadSplitContainer>
   </telerik:RadDocking.DocumentHost>

 </telerik:RadDocking>

Hi,

I have used RadControls for WPF, and created a RadWindow and a RadGrid view, and entered some sample data into the RadGrid as per the following code:

<telerik:RadWindow
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        x:Class="WpfApplication6.MainWindow"
        HorizontalAlignment="Stretch" 
        VerticalAlignment="Stretch">
            <telerik:RadWindow.Resources>
                <XmlDataProvider x:Key="GridEntries" XPath="/Categories/Details">
                <x:XData>
                    <Categories>
                        <Details>
                            <Source>ABC</Source>
                            <Title>DEF</Title>
                            <Date>12/11/10</Date>
                            <Location></Location>
                            <Type></Type>
                            <Category></Category>
                            <Severity></Severity>
                            <ScenarioActivated></ScenarioActivated>
                            <Videowall></Videowall>
                        </Details>
                        <Details>
                            <Source>DEF</Source>
                            <Title>XYZ</Title>
                            <Date>22/05/10</Date>
                            <Location></Location>
                            <Type></Type>
                            <Category></Category>
                            <Severity></Severity>
                            <ScenarioActivated></ScenarioActivated>
                            <Videowall></Videowall>
                        </Details>
                        <Details>
                            <Source>PQR</Source>
                            <Title>XYZ</Title>
                            <Date>30/09/10</Date>
                            <Location></Location>
                            <Type></Type>
                            <Category></Category>
                            <Severity></Severity>
                            <ScenarioActivated></ScenarioActivated>
                            <Videowall></Videowall>
                        </Details>
                    </Categories>
            </x:XData>
        </XmlDataProvider>
    </telerik:RadWindow.Resources>
    <telerik:RadGridView 
        HorizontalAlignment="Center" 
        VerticalAlignment="Center" 
        Height="200" Width="876" AutoGenerateColumns="True"
        ItemsSource="{Binding Source={StaticResource GridEntries}}"/>
    </telerik:RadWindow>
The code is functioning fine during design time and the sample data i have written in the RadGrid is appearing during design time. but, when i run this XAML in Expression Blend, the RadWindow and radgrid appears, with no fields and no sample data in it. Just an empty Radgrid with no data appears in a radWindow. Please help me solve this problem i am facing. Thanx.