<Window x:Class="RadGridView_TwoGridsToOneView.MainWindow1"
        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"
        Title="MainWindow1" Height="300" Width="300">
    <Window.Resources>
        <ResourceDictionary>
          <!--  <Style TargetType="{x:Type telerik:GridViewRow}"
                   x:Uid="Style_6">
                <Setter x:Uid="Setter_19"
                        Property="IsSelected"
                        Value="{Binding IsSelected, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                <Style.Triggers>
                    <Trigger x:Uid="Trigger_3"
                             Property="IsSelected"
                             Value="True">
                        <Setter x:Uid="Setter_20"
                                Property="Background"
                                Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                    </Trigger>
                </Style.Triggers>
            </Style>-->
        </ResourceDictionary>
    </Window.Resources>

    <StackPanel>
        <Grid x:Name="LayoutRoot"
              HorizontalAlignment="Stretch"
              VerticalAlignment="Stretch">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            <telerik:RadGridView AutoGenerateColumns="true"
                                 HorizontalContentAlignment="Stretch"
                                 VerticalContentAlignment="Stretch"
                                 Name="Grid1"
                                 SelectionMode="Extended"
                                 ScrollViewer.IsDeferredScrollingEnabled="True"
                                 EnableRowVirtualization="True"
                                 RowDetailsVisibilityMode="Collapsed"
                                 ItemsSource="{Binding ItemsList}"/>

            <telerik:RadGridView Grid.Column="1"
                                 AutoGenerateColumns="true"
                                 HorizontalContentAlignment="Stretch"
                                 VerticalContentAlignment="Stretch"
                                 Name="Grid2"
                                 SelectionMode="Extended"
                                 ScrollViewer.IsDeferredScrollingEnabled="True"
                                 EnableRowVirtualization="True"
                                 RowDetailsVisibilityMode="Collapsed"
                                 ItemsSource="{Binding ItemsList}"/>
        </Grid>
    </StackPanel>
</Window>
