我使用此存储过程来获取创建的测试列表，但是只要我输入新条目（创建新测试），新条目就不会显示在列表上。
但是我在测试表中添加了2个新列，分别称为StartDateTime和EndDateTime
USE [School-OnPremise]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[CMS_Test_GetList]
@SubjectId int,
@ProgramId int,
@ProgramLevelId int,
@AcademicTerm int,
@AcademicSession int,
@AddedBy int,
@EntityStatus int = null
AS
BEGIN
SET NOCOUNT ON;
select i.*,
(select Count(*) from TestQuestion where TestId = i.Id) As QuestionNumber,
(select Count(*) from StudentTests where TestId = i.Id and score is not
null) AS ResultsCount
from Test AS i
where i.ClassId =COALESCE(@ProgramId,i.ClassId)
and i.SubjectId = COALESCE(@SubjectId,i.SubjectId)
and i.Session = COALESCE(@AcademicSession,i.Session)
and i.AcademicTerm = COALESCE(@AcademicTerm,i.AcademicTerm)
and i.AddedBy = COALESCE(@AddedBy,i.AddedBy)
and i.EntityStatus = COALESCE(@EntityStatus,EntityStatus)
order by i.AddedOn desc
END
GO
该表在我执行存储过程时传递了所需的参数，应该获取属于我传递的参数类别的条目。单击sql表以查看下图
当我尝试执行存储过程时，这就是我得到的
USE [School-OnPremise]
GO
DECLARE @return_value int
EXEC @return_value = [dbo].[CMS_Test_GetList]
@SubjectId = 3142,
@ProgramId = 2045,
@ProgramLevelId = 0,
@AcademicTerm = 1,
@AcademicSession = 2018,
@AddedBy = 3,
@EntityStatus = null
SELECT 'Return Value' = @return_value
GO
这是我得到的输出
答案 0 :(得分：0)
啊，您的最终条件是测试i.EntityStatus = NULL-这将不起作用-如果列值= null，那么它将仅满足IS NULL运算符。
and (@EntityStatus IS NULL OR (@EntityStatus IS NOT NULL AND i.EntityStatus = @EntityStatus))
答案 1 :(得分：0)
问题不在于测试过程，它来自下面的代码，没有任何东西可以保存enitystatus的值
public bool insert_New_Test(string TestName, int Duration, int SessionYear, int ClassId, int SubjectId, bool Status, int AddedBy,
int ProgramLevelId, int AcademicTerm, int questionSetUpType, out int id, DateTime startDateTime, DateTime endDateTime, int? testType)
{
bool functionReturnValue = false;
id = 0;
try
{
using (SqlConnection con = new SqlConnection(conn))
{
con.Open();
SqlCommand oComm = new SqlCommand();
using (oComm)
{
oComm.Connection = con;
oComm.CommandType = CommandType.StoredProcedure;
oComm.CommandText = "CMS_Test_Insert";
oComm.Parameters.Add(new SqlParameter("@Title", SqlDbType.NVarChar));
oComm.Parameters["@Title"].Value = TestName;
oComm.Parameters.Add(new SqlParameter("@SubjectId", SqlDbType.Int));
oComm.Parameters["@SubjectId"].Value = SubjectId;
oComm.Parameters.Add(new SqlParameter("@ClassId", SqlDbType.Int));
oComm.Parameters["@ClassId"].Value = ClassId;
oComm.Parameters.Add(new SqlParameter("@Session", SqlDbType.Int));
oComm.Parameters["@Session"].Value = SessionYear;
oComm.Parameters.Add(new SqlParameter("@ProgramLevelId", SqlDbType.Int));
oComm.Parameters["@ProgramLevelId"].Value = ProgramLevelId;
oComm.Parameters.Add(new SqlParameter("@AcademicTerm", SqlDbType.Int));
oComm.Parameters["@AcademicTerm"].Value = AcademicTerm;
oComm.Parameters.Add(new SqlParameter("@Duration", SqlDbType.Int));
oComm.Parameters["@Duration"].Value = Duration;
oComm.Parameters.Add(new SqlParameter("@Status", SqlDbType.Bit));
oComm.Parameters["@Status"].Value = Status;
oComm.Parameters.Add(new SqlParameter("@AddedBy", SqlDbType.Int));
oComm.Parameters["@AddedBy"].Value = AddedBy;
oComm.Parameters.Add(new SqlParameter("@QuestionSetupType", SqlDbType.Int));
oComm.Parameters["@QuestionSetupType"].Value = questionSetUpType;
if (startDateTime > DateTime.MinValue)
{
oComm.Parameters.Add(new SqlParameter("@StartDateTime", SqlDbType.DateTime));
oComm.Parameters["@StartDateTime"].Value = startDateTime;
}
if (endDateTime > DateTime.MinValue)
{
oComm.Parameters.Add(new SqlParameter("@EndDateTime", SqlDbType.DateTime));
oComm.Parameters["@EndDateTime"].Value = endDateTime;
}
oComm.Parameters.Add(new SqlParameter("@TestType", SqlDbType.Int));
oComm.Parameters["@TestType"].Value = testType;
oComm.Parameters.Add(new SqlParameter("@Success", SqlDbType.Bit));
oComm.Parameters["@Success"].Direction = ParameterDirection.Output;
oComm.Parameters.Add(new SqlParameter("@TestId", SqlDbType.Int));
oComm.Parameters["@TestId"].Direction = ParameterDirection.Output;
oComm.ExecuteNonQuery();
functionReturnValue = Convert.ToBoolean(oComm.Parameters["@Success"].Value);
id = Convert.ToInt32(oComm.Parameters["@TestId"].Value);
}
con.Close();
}
}
catch (SqlException ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
functionReturnValue = false;
}
return functionReturnValue;
}
因此，当尝试获取entitystatus的值时，该值为null
public List<TestViewModel> get_List_Of_Test(int SubjectId, int ProgramLevelId, int AcademicTerm, int AcademicSession,
int ProgramId, int status)
{
List<TestViewModel> sList = new List<TestViewModel>();
try
{
using (SqlConnection con = new SqlConnection(conn))
{
con.Open();
SqlCommand oComm = new SqlCommand();
using (oComm)
{
oComm.Connection = con;
oComm.CommandType = CommandType.StoredProcedure;
oComm.CommandText = "CMS_Test_GetList";
oComm.Parameters.Add(new SqlParameter("@SubjectId", SqlDbType.Int));
oComm.Parameters["@SubjectId"].Value = SubjectId == 0 ? System.Data.SqlTypes.SqlInt32.Null : SubjectId;
oComm.Parameters.Add(new SqlParameter("@ProgramId", SqlDbType.Int));
oComm.Parameters["@ProgramId"].Value = ProgramId == 0 ? System.Data.SqlTypes.SqlInt32.Null : ProgramId;
oComm.Parameters.Add(new SqlParameter("@ProgramLevelId", SqlDbType.Int));
oComm.Parameters["@ProgramLevelId"].Value = ProgramLevelId == 0 ? System.Data.SqlTypes.SqlInt32.Null : ProgramLevelId;
oComm.Parameters.Add(new SqlParameter("@AcademicSession", SqlDbType.Int));
oComm.Parameters["@AcademicSession"].Value = AcademicSession == 0 ? System.Data.SqlTypes.SqlInt32.Null : AcademicSession;
oComm.Parameters.Add(new SqlParameter("@AcademicTerm", SqlDbType.Int));
oComm.Parameters["@AcademicTerm"].Value = AcademicTerm == 0 ? System.Data.SqlTypes.SqlInt32.Null : AcademicTerm;
oComm.Parameters.Add(new SqlParameter("@AddedBy", SqlDbType.Int));
oComm.Parameters["@AddedBy"].Value = MembershipHelper.GetActiveUser().Teacher.IsAdmin ? System.Data.SqlTypes.SqlInt32.Null : MembershipHelper.GetActiveUserId;
oComm.Parameters.Add(new SqlParameter("@EntityStatus", SqlDbType.Int));
oComm.Parameters["@EntityStatus"].Value = status;
SqlDataReader rdr = oComm.ExecuteReader();
if (rdr.HasRows)
{
int _sn = 0;
while (rdr.Read())
{
int publicStatus = _rdrHelper.getOrdinalInt32Value(rdr, "EntityStatus");
_sn++;
TestViewModel qList = new TestViewModel();
qList.ProgramLevelId = _rdrHelper.getOrdinalInt32Value(rdr, "ProgramLevel");
qList.ProgramLevelText = Extensions.ListEnums.GetProgramLevel().Skip(qList.ProgramLevelId - 1).First().Text;
qList.AcademicTermId = _rdrHelper.getOrdinalInt32Value(rdr, "AcademicTerm");
qList.AcademicTermText = Extensions.ListEnums.GetTermChoice().Skip(qList.AcademicTermId - 1).First().Text;
qList.TestTitle = _rdrHelper.GetOrdinalStringValue(rdr, "Title");
qList.ClassId = _rdrHelper.getOrdinalInt32Value(rdr, "ClassId");
qList.ClassName = _rdrHelper.GetOrdinalStringValue(rdr, "ClassName");
qList.SubjectName = _rdrHelper.GetOrdinalStringValue(rdr, "SubjectName");
qList.SessionId = _rdrHelper.getOrdinalInt32Value(rdr, "Session");
qList.TestId = _rdrHelper.getOrdinalInt32Value(rdr, "Id");
qList.Duration = _rdrHelper.getOrdinalInt32Value(rdr, "Duration");
qList.Status = _rdrHelper.getOrdinalBooleanValue(rdr, "Status");
qList.QuestionCount = _rdrHelper.getOrdinalInt32Value(rdr, "QuestionNumber");
qList.TestSn = _sn;
qList.ResultExists = _rdrHelper.getOrdinalInt32Value(rdr, "ResultsCount") > 0;
qList.AddedBy = _rdrHelper.getOrdinalInt32Value(rdr, "AddedBy");
qList.Test.StartDateTime = _rdrHelper.getNullableOrdinalDatetimeValue(rdr, "StartDateTime");
qList.Test.EndDateTime = _rdrHelper.getNullableOrdinalDatetimeValue(rdr, "EndDateTime");
qList.Test.EntityStatus = publicStatus;
sList.Add(qList);
}
}
con.Close();
}
}
}
在我的创建页面上，没有任何字段可以传递entitystatus的值
但是对于编辑页面，有一个字段可以将值传递给entitystatus
发布状态是提供实体状态值的字段。事情是在创建测试后，我被重定向到编辑页面以单击保存按钮，以便所有条目都将被保存到数据库3中，但是我没有单击保存按钮，我只是返回到显示该列表的索引页面测试。
