在asp.net網頁API我使用實體框架與數據庫進行通信。這裏我試圖更新表格中的單個列。實體框架無法更新列;越來越System.Data.EntityCommandCompilationException
public HttpResponseMessage ActivateAccount(string activation_code, string userMail)
{
if (!string.IsNullOrWhiteSpace(activation_code) && !string.IsNullOrWhiteSpace(userMail))
{
Account activateAcc = db.Accounts.Where(user => user.AccMail == userMail && user.ConfirmToken == activation_code).SingleOrDefault();
if (activateAcc != null)
{
activateAcc.IsActive = true;
db.SaveChanges();
return Request.CreateResponse(HttpStatusCode.Accepted, "account activated");
}
else
{
return Request.CreateResponse(HttpStatusCode.NotAcceptable, "invalid account");
}
}
else
{
return Request.CreateResponse(HttpStatusCode.NoContent, "missing user Mail or activation code");
}
}
,但在該聲明
Account activateAcc = db.Accounts.Where(user => user.AccMail == userMail && user.ConfirmToken == activation_code).SingleOrDefault();
我正在System.Data.EntityCommandCompilationException
類型的異常與此內部異常
錯誤3002:問題在映射片段起始於第6行:潛在的運行時違反表帳戶的鍵(Account.AccID)的:列(Account.AccID)映射到EntitySet的帳戶對概念端屬性(Accounts.AccID),但他們並不形成EntitySet的重點親perties(Accounts.AccID,Accounts.AccMail,Accounts.AccName,Accounts.AccPassword,Accounts.IsActive,Accounts.IsAdmin個)\ r \ n \ r \ nAccPlusModel.msl(19,10):錯誤3002:問題在映射片段起始於第19行:潛在的運行時違反表TansactionCategory的鍵(TansactionCategory.CatID)的:列(TansactionCategory.CatID)被映射到的EntitySet TansactionCategories對概念端屬性(TansactionCategories.CatID),但它們不形成所述的EntitySet的關鍵性質(TansactionCategories .CatAccount,TansactionCategories.CatColor,TansactionCategories.CatID,TansactionCategories.CatName)
可能下降,並再次creatign模型會更快 – JotaBe