Radiobutton ischecked not working

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WPF

DataGrid

RadioButton

I have a button and a datagrid. I'm binding list to DataGrid and also created static DataGrid Column of RadioButton. If I select any of the RadioButton from the DataGrid I want my button to get enabled. So below is what I have tried but still unable to fix the issue.

<Button HorizontalAlignment="Right" Margin="5,0,0,0"  Height="23" Content="Enable/Disable">
    <Button.Style>
       <Style TargetType="Button">
           <Setter Property="IsEnabled" Value="False" />
           <Style.Triggers>
               <DataTrigger Binding="{Binding ElementName=SelectItems, Path=IsChecked}" Value="True">
                   <Setter Property="IsEnabled" Value="True" />
               </DataTrigger>
           </Style.Triggers>
       </Style>
    </Button.Style>
</Button>

<DataGrid ScrollViewer.HorizontalScrollBarVisibility="Auto" BorderBrush="Black" Grid.Row="2" VerticalAlignment="Stretch" ItemsSource="{Binding ListOfItems}" CanUserAddRows="False" IsReadOnly="True" CanUserDeleteRows="False" CanUserResizeColumns="False" HorizontalGridLinesBrush="Black" VerticalGridLinesBrush="Black">
    <DataGrid.Resources>
        <Style TargetType="DataGridColumnHeader">
            <Setter Property="Width" Value="95" />
        </Style>
    </DataGrid.Resources>
    <DataGrid.Columns>
        <DataGridTemplateColumn Width="25">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <RadioButton x:Name="SelectItems" HorizontalAlignment="Center" GroupName="Trail"/>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

I'm very new to ElementBinding. Not sure what I'm missing.

Thank You.

What I have tried:

I also tried to set IsChecked to a bool property at my ViewModel, but IsChecked property was not setting the value to the property.