asp.net-mvc-5 – EntityFramework.SqlServer.dll中出现’System

A first chance exception of type ‘System.Data.Entity.Core.EntityCommandExecutionException’ occurred in EntityFramework.SqlServer.dll

using (var context = new PartnerPortalEntities2())
 {
    var outputParameter = new ObjectParameter("result",typeof(string));
    var spresults = context.assignRoles_CreateAccountAndContacts(user.Id,role,user.AccountId,user.AccountName,user.ContactId,user.FirstName,user.LastName,outputParameter);
    // Control never comes after the above line
    if(spresults.Equals("1"))
    {
       //Do something
    }
    else
    {
        // Do something
    }

    }

当我进行调试时,控件进入调用存储过程的行,之后我们在输出窗口上得到上述错误并且调试器停止,它永远不会进入if语句.

我已经在SQLserver上运行存储过程,它在那里工作正常.任何想法可能是错误.我通过从数据库生成代码来构建上下文.