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;
        }
    }