Blank rows after binding to RadGridView

[Sid]

I have a Prism app which uses the BackGroundWorker for loading data into a DataTable and then binding the DataTable.DefaultView to the ItemSource of a RadGridView.  Often when I start the application, I get blank rows added into the grid.  Any idea why I get blank rows when I run the application sometimes but see actual data other times?  See XAML below:

<UserControl x:Class="OrganizationalUnitModule.Views.OUList"
    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:my="clr-namespace:OrganizationalUnitModule.Presenter"
             xmlns:telerikData="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data"
             xmlns:telerikControls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"
             mc:Ignorable="d"
             d:DesignHeight="300" d:DesignWidth="300">
    <UserControl.DataContext>
        <my:OUListBWPresenter/>
    </UserControl.DataContext>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="80"/>
            <RowDefinition Height="40"/>
            <RowDefinition Height="600"/>
        </Grid.RowDefinitions>
        <Border Grid.Row="0" Margin="0,0,0,0" VerticalAlignment="Top" Height="80" Width="Auto">
            <Border.Background>
                <LinearGradientBrush EndPoint="0.5,1" MappingMode="RelativeToBoundingBox" StartPoint="0.5,0">
                    <GradientStop Color="#FFEEF3EB" Offset="1"/>
                    <GradientStop Color="#FF0B72B4"/>
                    <GradientStop Color="#FF549BC5" Offset="0.323"/>
                    <GradientStop Color="#FFA4C9D8" Offset="0.677"/>
                </LinearGradientBrush>
            </Border.Background>
        </Border>

        <Border Grid.Row="1" Margin="0,0,0,0" VerticalAlignment="Top" Height="40" Width="Auto">
            <StackPanel Orientation="Horizontal">
                <telerikControls:RadButton Content="Mode" Height="30" Width="80" Margin="15,5,0,5"/>
                <telerikControls:RadButton Content="Load" Height="30" Width="80" Margin="15,5,0,5"  Command="{Binding LoadCommand}" />
                <telerikControls:RadButton Content="Cancel" Height="30" Width="80" Margin="15,5,0,5"  Command="{Binding CancelCommand}" />
            </StackPanel>
        </Border>

        <Border Grid.Row="2" Margin="12,12,10,12">
            <telerik:RadGridView x:Name="OUGridView" AutoGenerateColumns="True"
                             ItemsSource="{Binding Path=OrganizationalUnitsDT.DefaultView}"
                             IsBusy="false" Grid.Row="2" SelectionMode="Multiple" Margin="0,0,0,0"
                             Height="Auto" Width="Auto" >
            </telerik:RadGridView>
                    </Border>
    </Grid>
</UserControl>

[Vlad]

Hi,

 Can you post more info about the grid version?

Kind regards,
Vlad
the Telerik team

[Sid]

Apologies for the delay.  version is: 2010.1.309.35.
Just to clarify, I am getting alternating blank rows, i.e. 1 blank row and 1 row with data.  I am adding data to the DataTable using DataTable aRow = DataTable.NewRow();
<populate data into aRow>
DataTable.Rows.Add(aRow);

[Vlad]

Hello,

 This is our Q1 2010. Can you try our latest official version (Q3 2010 SP1) instead? 

Regards,
Vlad
the Telerik team