How to handle spaces in DataTrigger binding for WPF DataGrid?

I am using autogenerating datagrid and bind it to DataTable. This DataTable has columns with spaces of type "Last Value". Now I need to add a datatrigger to apply some style as shown below:

<DataGrid.Resources>                        
                    <Style x:Key="DgStyle" TargetType="{x:Type TextBlock}">
                        <Setter Property="TextAlignment" Value="Right"/>
                        <Style.Triggers>                               
                            <DataTrigger Binding="{Binding Last Value, Converter= {StaticResource DecimalToBoolConverter}}" Value="True">
                                <Setter Property="Foreground" Value="Red" />
                            </DataTrigger>
                        </Style.Triggers>
                    </Style>
        </DataGrid.Resources>

      

        
        
        
      

    

But the DataTrigger Binding doesn't support spaces (last value). When I remove the space (LastValue) then it works fine. But as per my requirement I need a space in the name of the data columns and this table is used to bind the datagrid.

How can I handle this scenario? Please suggest.