DataGrid单元格ToolTip基于列的数据

Question

在我的应用程序中，我试图实现工具提示，它会根据dataGrid Column的文本向我显示datagrid中的一些错误。对于示例，我有4列带有用于输入一些数据的文本框，如果某些列中的数据对规则不多，或者如果其中一些列在最后的第4列为空，我应该向工具提示显示一些解释文本。

<WpfToolkit:DataGridTemplateColumn Width="0.02*" IsReadOnly="True">
          <WpfToolkit:DataGridTemplateColumn.CellStyle>
            <Style TargetType="{x:Type WpfToolkit:DataGridCell}" BasedOn="{StaticResource TransparentCellSelection}">
              <Style.Triggers>

                <DataTrigger Value="1">
                  <DataTrigger.Binding>
                    <MultiBinding Converter="{StaticResource DataGridRowToolTipConverter}">
                      <Binding Path="IsRequired" />
                      <Binding Path="InputColumns.Count" />
                      <Binding Path="HasDefaultValue" />
                      <Binding Path="HasOverwritingValue" />
                      <Binding Path="MappingType" />
                      <Binding Path="SourceColumnMappings" />
                      <Binding Path="ColumnStatus" />
                    </MultiBinding>
                  </DataTrigger.Binding>
                  <Setter Property="ToolTip" Value="Translation mapping is incomplete." />
                </DataTrigger>

                <DataTrigger Value="2">
                  <DataTrigger.Binding>
                    <MultiBinding Converter="{StaticResource DataGridRowToolTipConverter}">
                      <Binding Path="IsRequired" />
                      <Binding Path="InputColumns.Count"/>
                      <Binding Path="HasDefaultValue" />
                      <Binding Path="HasOverwritingValue" />
                      <Binding Path="MappingType" />
                      <Binding Path="SourceColumnMappings" />
                      <Binding Path="ColumnStatus" />
                    </MultiBinding>
                  </DataTrigger.Binding>
                  <Setter Property="ToolTip" Value="Overwriting Value overrides Mapping. Mapping and Default Value are ignored." />
                </DataTrigger>

                <DataTrigger Value="3">
                  <DataTrigger.Binding>
                    <MultiBinding Converter="{StaticResource DataGridRowToolTipConverter}">
                      <Binding Path="IsRequired" />
                      <Binding Path="InputColumns.Count" />
                      <Binding Path="HasDefaultValue" />
                      <Binding Path="HasOverwritingValue" />
                      <Binding Path="MappingType" />
                      <Binding Path="SourceColumnMappings" />
                      <Binding Path="ColumnStatus" />
                    </MultiBinding>
                  </DataTrigger.Binding>
                  <Setter Property="ToolTip" Value="Default Value cannot be set for empty Mapping. Please define Mapping or use Overwriting Value instead of Default Value." />
                </DataTrigger>

有人知道最好的方法吗？