在Asp.Net动态数据应用使用DisplayColumnAttribute多个字段排序？ [英] Sorting by multiple fields using DisplayColumnAttribute in Asp.Net Dynamic Data App?

问题描述

我有一个动态数据的应用程序，我想基于像这样..

I've got a dynamic data app, and I want to sort based on multiple fields like so..

<DisplayColumn("FieldName", "Field1, Field2")> _

DisplayColumn似乎并不支持多个字段？

DisplayColumn doesn't seem to support more than one field?

推荐答案

该DisplayColumn属性的SortColumn参数指定要使用时，它被用来作为外键（例如：在DropDownList中），这个实体排序的列，不当它在GridView进行排序（或DB进行排序）。

The DisplayColumn attribute's SortColumn param specifies the column that will be used to sort this entity when it is used as a foreign key (ex: in a DropDownList), not when it is being sorted in the GridView (or being sorted in the DB).

看所以这里还有：
<一href=\"http://stackoverflow.com/questions/731502/asp-net-dynamic-data-displaycolumn-attribute-causing-sorting-issue\">http://stackoverflow.com/questions/731502/asp-net-dynamic-data-displaycolumn-attribute-causing-sorting-issue

MSDN：<一href=\"http://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.displaycolumnattribute.aspx\" rel=\"nofollow\">http://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.displaycolumnattribute.aspx

如果这仍然是你在找什么（在DropDownLists只，而不是数据库排序），你可以通过创建，结合这两列实体的自定义属性上多列排序。

If this is still what you are looking for (sorting in DropDownLists only, not the DB) you can sort on multiple columns by creating a custom property in the entity that combines those two columns.

例如：

[DisplayColumn("FieldName", "SortColumn")]
public partial class Employee
{
    public string SortColumn
    {
        get { return Field1 + Field2; }
    }
}

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