,如果你請我堆出來我有一個錯誤標量誤差
錯誤:
必須聲明標量變量「@Criteria」。
,因爲我沒有很多的經驗,我無法找到感謝
代碼問題:
public static void CreateReveiw(string paperId, string Criteria_Id, string Grate)
{
var sqlCon = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
SqlCommand cmd = new SqlCommand();
cmd.Connection = sqlCon;
cmd.CommandText = "select Review_paper_ID from ReviewPaper where Paper_ID= @PaperId";
cmd.Parameters.AddWithValue("@PaperId", paperId);
cmd.Connection.Open();
string Review_paper_ID = cmd.ExecuteScalar().ToString();
cmd.Connection.Close();
cmd.Dispose();
string query2 = @"insert into ReviewPaperCriteria(Review_paper_ID,Criteria_ID,Grate)
values(@Review_paper_ID,@Criteria,@Grate);select SCOPE_IDENTITY() as RPID";
cmd = new SqlCommand(query2, sqlCon);
cmd.Parameters.AddWithValue("@Review_paper_ID", Review_paper_ID);
cmd.Parameters.AddWithValue("@Criteria_ID", Criteria_Id);
cmd.Parameters.AddWithValue("@Grate", Grate);
string ReviewPaperId;
try
{
cmd.Connection.Open();
ReviewPaperId = cmd.ExecuteScalar().ToString();
cmd.Connection.Close();
}
catch (Exception ee) { throw ee; }
finally { cmd.Dispose(); }
}
** **從不寫'趕上(例外EE){拋出EE; }'。它銷燬堆棧跟蹤。 – SLaks
@SLaks將'catch(Exception ee){throw; }'維護堆棧跟蹤? –
@Bala:是的。這很好,但沒用。 – SLaks