Create an override for a datagrid within a user control(WPF)

The XAML

<UserControl>
 <Grid>
        <toolkit:DataGrid  ItemsSource="{Binding Source={StaticResource DocumentsVS}}" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False"
                FontSize="16" Name="_dgDocuments" Style="{StaticResource EklektosDataGridStyle}" . . . >
</UserControl>

OR

<local:MyDataGrid x:Name="dataGrid"/>

In case you want to override the OnCreateAutomationPeer of your dataGrid, you have to subclass the dataGrid -

public class MyDataGrid : DataGrid

{

    protected override AutomationPeer OnCreateAutomationPeer()

    {

        return null;

    }

}

And in constructor of your UserControl -

public CDocumentChecklistView()

{

    InitializeComponent();

    AutomationPeer a = UIElementAutomationPeer.CreatePeerForElement(dataGrid);

}