WPF GridControl单元格值与过滤值相同时，改变单元格背景色

  <dxg:TableView.CellStyle>
                                        <Style TargetType="{x:Type dxg:LightweightCellEditor}" BasedOn="{StaticResource {dxgt:GridRowThemeKey ResourceKey=LightweightCellStyle}}">
                                            <Style.Triggers>
                                                <DataTrigger Value="True">
                                                    <DataTrigger.Binding>
                                                        <MultiBinding Converter="{StaticResource multiValueEqualityConverter}">
                                                            <Binding  Path="Value" Mode="OneWay" />
                                                            <Binding RelativeSource="{RelativeSource AncestorType={x:Type local:WI}}" Path="DataContext.CurrentFilterValue" Mode="OneWay"  />
                                                            <Binding RelativeSource="{RelativeSource AncestorType={x:Type local:WI}}" Path="DataContext.FIsFilter" Mode="OneWay"  />
                                                        </MultiBinding>
                                                    </DataTrigger.Binding>
                                                    <Setter Property="Background" Value="Orange"/>
                                                </DataTrigger>
                                            </Style.Triggers>
                                        </Style>
                                    </dxg:TableView.CellStyle>

    public class MuliteConvertEqual : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values != null)
            {
                if (values[0] != null && values[1] != null && values[2] !=null)
                {
                    if (values[0].ToString() == values[1].ToString()&& System.Convert.ToBoolean(values[2])==true)
                    {
                        return true;
                    }
                }
                    
            }

            return false;
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            return null;
        }
    }