我在我的應用程序中使用EF。我嘗試保存\將新記錄插入患者視圖

Question

我在SQL服務器中創建了一個視圖，然後將其添加到Visual Studio 2012中的我的edmx文件中。然後，我在Postman上進行了POST操作並得到了此運行時錯誤。

Unable to update the EntitySet 'ViewPatient' because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation. 




//Controller action code namespace MvcWebAPI.Models 
    { 
     using System; 
     using System.Collections.Generic; 

     public partial class ViewPatient 
     { 
      public int PatientID { get; set; } 
      public int MedicationID { get; set; } 
      public int GPID { get; set; } 
      public string Firstname { get; set; } 
      public string Surname { get; set; } 
      public System.DateTime DOB { get; set; } 
      public string Medication { get; set; } 
      public string Alergies { get; set; } 
      public string MedicationHistory { get; set; } 
     } 
    } 

Answer 1

您需要在視圖上使用主鍵。 http://blogs.msdn.com/b/alexj/archive/2009/09/01/tip-34-how-to-work-with-updatable-views.aspx