entityframework.sqlserver.dll中发生了'system.notsupportedexception'类型的异常，但未在用户代码中处理 [英] An exception of type 'system.notsupportedexception' occurred in entityframework.sqlserver.dll but was not handled in user code

问题描述

您好



我已经暂时获得此System.NotSupportedException异常，我用完了选项。当我尝试从浏览器访问findAllUsers（）函数时出现此错误。



我有模型类：

Hi there

I have been getting this "System.NotSupportedException" exception for a while now, I ran out of options. I get this error when I try to access the findAllUsers() funtion from my browser.

I have model class:

Public Class pUsers

Public Property UserId() As Long
Public Property Username() As String
Public Property Password() As String
Public Property Email() As String
Public Property Cell() As String
Public Property DateCreated() As Date
Public Property LastLogin() As DateTime

End Class

ServiceAPIserver类有一个如下所示的函数：

The ServiceAPIserver class has a function that looks like this:

Public Function findAllUsers() As List(Of pUsers) Implements IServiceAPIServer.findAllUsers
    Using mde As New AllMyAPIEntities()
        Return mde.UserEntities.[Select](Function(ue) New pUsers() With {
            .UserId = ue.UserId,
            .Cell = wrapper.DecryptData(ue.Cell),
            .DateCreated = ue.DateCreated,
            .Email = wrapper.DecryptData(ue.Email),
            .LastLogin = ue.LastLogin,
            .Password = ue.Password,
            .Username = wrapper.DecryptData(ue.Username)}).ToList()
    End Using
End Function

我尝试过：



我真的不知道该怎么做，因为这是知道的唯一方法。

What I have tried:

I really have no idea what to do since this is the only way a know.

推荐答案

我删除了wrapper.DecryptData。来自另一个论坛的jmcilhinney提醒我，在运行时，基础提供商不支持某些事情。

I have removed the wrapper.DecryptData. jmcilhinney from another forum reminded me that at run time, certain things are not supported by the underlying provider.

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