The following example demonstrates how to hide the row-selector pane. 

XAML
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<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid">
  <Grid.Resources>
    <xcdg:DataGridCollectionViewSource x:Key="cvs_orders"
                                    Source="{Binding Source={x:Static Application.Current},
                                                      Path=Orders}"/>
  </Grid.Resources>
   <xcdg:DataGridControl x:Name="OrdersGrid"
                         ItemsSource="{Binding Source={StaticResource cvs_orders}}">
      <xcdg:DataGridControl.View>
        <xcdg:TableView ShowRowSelectorPane="False"/>
      </xcdg:DataGridControl.View>
   </xcdg:DataGridControl>
</Grid>
VB.NET
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Dim view As New TableView()
view.ShowRowSelectorPane = False
dataGridControl.View = view
C#
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TableView view = new TableView();
view.ShowRowSelectorPane = false;
dataGridControl.View = view;