The parameterized query '(@TeacherID nvarchar(9),@LeaderID nvarchar(9),@Status int,' expects the parameter '@ORatingID', which was not supplied.
存储过程的参数:
@TeacherID varchar(9),
@LeaderID varchar(9),
@Status int,
@SharedDraft bit,
@SGrowthRatingID int,
@ORatingID int,
@Q1Text varchar(max),
@Q2Text varchar(max),
@Q3Text varchar(max),
@Q4Text varchar(max)
SQL Server Profiler中显示:
exec sp_executesql N'usp_EOYASave @TeacherID, @LeaderID, @Status,
@SharedDraft, @SGrowthRatingID, @ORatingID, @Q1Text, @Q2Text, @Q3Text,
@Q4Text',N'@TeacherID nvarchar(9),@LeaderID nvarchar(9),@Status int,
@SharedDraft bit,@SGrowthRatingID int,@ORatingID nvarchar(4000),
@Q1Text nvarchar(11),@Q2Text nvarchar(4),@Q3Text nvarchar(4000),
@Q4Textnvarchar(4)',@TeacherID=N'100',@LeaderID=N'1002',@Status=7,
@SharedDraft=0,@SGrowthRatingID=1,@ORatingID=default,
@Q1Text=N'test 123 bc',@Q2Text=N'test',@Q3Text=N'',@Q4Text=N'test'
注意:
在C#10@ORatingID nvarchar(4000)
@ORatingID=default
调用代码:
db.Database.ExecuteSqlCommand("usp_EOYASave @TeacherID, @LeaderID, @Status,
@SharedDraft, @SGrowthRatingID, @ORatingID,
@Q1Text, @Q2Text, @Q3Text, @Q4Text",
new SqlParameter("TeacherID", EOYRating.CurrentTeacher.ID),
new SqlParameter("LeaderID", EOYRating.IsLeader == true ?
EOYRating.CurrentLeader.LeaderID : null),
new SqlParameter("Status", EOYRating.IsLeader == false ?
EOYRating.TeacherStatus : EOYRating.LeaderStatus),
new SqlParameter("SharedDraft", sharedDraft),
new SqlParameter("ORatingID", EOYRating.IsLeader == true ?
(Int32?)EOYRating.OverallRatingValue : null),
new SqlParameter("SGrowthRatingID", EOYRating.IsLeader == true ?
(Int32?)EOYRating.StudentGrowthRatingValue : null),
new SqlParameter("Q1Text", q1Text != null ? q1Text : ""),
new SqlParameter("Q2Text", q2Text != null ? q2Text : ""),
new SqlParameter("Q3Text", q3Text != null ? q3Text : ""),
new SqlParameter("Q4Text", q4Text != null ? q4Text : ""));
问题:
当我运行这段代码(在SQL Server),并更改 “默认” 为0或空它的工作原理。
为什么它将它转换(或识别它)为nvarchar(4000)
?
更新:
我想这个建议后提出:
new SqlParameter("ORatingID", SqlDbType.Int, 4, ParameterDirection.Input, true, 0, 0, "", DataRowVersion.Current , EOYRating.IsLeader == true ? (Int32?)EOYRating.OverallRatingValue : null),
我收到了同样的错误消息。
有时不指定参数,使其NULL,而不是将它添加,并试图将其从DB侧设置为null的数据库调用,正确的做法,因为DBNull的是不一样的东西代码 - 边空。但我不是100%确定这件事。 – ErikE