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;