当我们通过DataPager切换页面时，Telerik RadGridView保留选定的行

Question

如果我从一页RadGridView转到下一页（通过DataPager），我将失去上一页的行选择。

这就是为什么如果我回来，以前选择的项目将不再被选中。

如何在RadDataGrid中保留选定的行？

代码：

        <telerik:RadGridView Margin="5" Grid.Row="2"
            SelectedItem="{Binding SelectedItem, Mode=TwoWay}"
            Name="DataGrid" 
            AutoGenerateColumns="False"
            ShowGroupPanel="False" 
            CanUserDeleteRows="False" 
            CanUserInsertRows="False"
            CanUserFreezeColumns="False"
            telerik:StyleManager.Theme="Windows8"
            SelectionMode="Extended"
            ValidatesOnDataErrors="None" 
            IsReadOnly="True"
            ItemsSource="{Binding View}"
            IsBusy="{Binding View.IsBusy}"
            RowIndicatorVisibility="Collapsed"
            IsSynchronizedWithCurrentItem="False"
            FilterOperatorsLoading="DataGrid_FilterOperatorsLoading">
            <i:Interaction.Behaviors>
                <behaviors:MultiSelectBehavior SelectedItems="{Binding SelectedItems}" />
            </i:Interaction.Behaviors>
            <telerik:RadGridView.Columns>
                <telerik:GridViewSelectColumn/>
                <telerik:GridViewDataColumn Header="Производитель" DataMemberBinding="{Binding MakerName}" ShowDistinctFilters="False"/>
                <telerik:GridViewDataColumn Header="Номер" DataMemberBinding="{Binding Number}" ShowDistinctFilters="False"/>
                <telerik:GridViewDataColumn Header="Наименование" DataMemberBinding="{Binding Name}" ShowDistinctFilters="False"/>
                <telerik:GridViewDataColumn Header="Товарная группа" DataMemberBinding="{Binding GroupName}" ShowDistinctFilters="False"/>
                <telerik:GridViewDataColumn Header="Вес" DataMemberBinding="{Binding WeightPhysical}" ShowDistinctFilters="False"/>
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
        <telerik:RadDataPager Height="28" Grid.Row="3"
            NumericButtonCount="20"
            Margin="5" 
            Name="DataPager" 
            Source="{Binding View}" 
            telerik:StyleManager.Theme="Windows8" 
            DisplayMode="All"
            Style="{StaticResource RadDataPagerStyle}"
            AutoEllipsisMode="None"/>