参考:Format values in a Datagrid
参考:Remove stringFormat while editing cell in datagrid
使用 DataGridTemplateColumn 实现:
<DataGridTemplateColumn Header="Coût (k€)"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding Path=TechnicalCostAmount, Mode=OneWay, StringFormat=N0, ConverterCulture=fr-FR}"/></DataTemplate></DataGridTemplateColumn.CellTemplate><DataGridTemplateColumn.CellEditingTemplate><DataTemplate><TextBox Text="{Binding Path=TechnicalCostAmount, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/></DataTemplate></DataGridTemplateColumn.CellEditingTemplate></DataGridTemplateColumn>