调试易

没用过XamDataGrid,但可以告诉你思路自己实现一个Converter    public class DateTime2StringConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            DateTime dt = DateTime.MinValue;
            if (value == null || !DateTime.TryParse(value.ToString(), out dt) || dt == DateTime.MinValue)
            {
                return string.Empty;
            }
            else 
            {
                return dt.ToString("yyyy-MM-dd");
            }
        }        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return null;
        }
    }Xaml里作为资源加入
    
     <UserControl.Resources>
        <yournamespace:DateTime2StringConverter x:Key="dateTime2StringConverter"/>
     </UserControl.Resources><!--Column绑定时使用指定的Coverter-->
     <sdk:DataGridTextColumn Binding="{Binding Date,Converter={StaticResource dateTime2StringConverter}}" Header="日期" Width="30" />