我有一个EntityDataSource,我需要将WHERE设置为本地变量类型:GUID。
我的问题是我无法将本地变量Guid发送到EntityDataSource进行WHERE操作。
我还尝试使用ControlParameter <asp:ControlParameter Name="UserId" />
,并在Guid上将String的Text属性带标签转换为String。但是不起作用。
任何想法如何解决这个问题
<asp:EntityDataSource ID="EntityDataSourceListAuthors" runat="server"
AutoGenerateWhereClause="True"
ConnectionString="name=CmsConnectionStringEntityDataModel"
DefaultContainerName="CmsConnectionStringEntityDataModel"
EnableFlattening="False" EntitySetName="CmsAuthors" Where=""
EntityTypeFilter="" Select="">
<WhereParameters>
<asp:Parameter Name="UserId" />
</WhereParameters>
</asp:EntityDataSource>
最佳答案
解决哟我的问题:
添加对象类型的自定义参数
有用的资源:
http://www.leftslipper.com/ShowFaq.aspx?FaqId=11
http://weblogs.asp.net/scottgu/archive/2006/01/23/436276.aspx
How to programmatically set parameters for EntityDataSource and DetailsView?
http://msdn.microsoft.com/en-us/library/cc294876%28v=Expression.40%29.aspx
http://msdn.microsoft.com/en-us/library/cc295043%28v=Expression.40%29.aspx
http://weblogs.asp.net/scottgu/archive/2006/11/26/tip-trick-how-to-register-user-controls-and-custom-controls-in-web-config.aspx
现在我的代码
<asp:EntityDataSource ID="EntityDataSourceListAuthors" runat="server"
AutoGenerateWhereClause="True"
ConnectionString="name=CmsConnectionStringEntityDataModel"
DefaultContainerName="CmsConnectionStringEntityDataModel"
EnableFlattening="False" EntitySetName="CmsAuthors" Where=""
EntityTypeFilter="" Select="">
<WhereParameters>
<cmsParameter:CustomParameter Name="UserId" />
</WhereParameters>
</asp:EntityDataSource>
新增班级:
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Security;
namespace WebProject.Core.Utilities
{
public class CustomParameter : Parameter
{
protected override object Evaluate(HttpContext context, Control control)
{
MembershipUser currentUser = Membership.GetUser();
return currentUser.ProviderUserKey;
}
}
}