public List<SingleProblem> GetSingleProblemList(string selectvalue)
{
using (SqlConnection con = DBHelp.GetConnection())
{
string sql = "select * from SingleProblem where CourseID=" + selectvalue;
SqlCommand cmd = new SqlCommand(sql, con);
con.Open();
List<SingleProblem> list = new List<SingleProblem>();
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
SingleProblem sing = new SingleProblem();
sing.ID = Convert.ToInt32(dr["ID"]);
sing.CourseID = Convert.ToInt32(dr["CourseID"]);
sing.Title = dr["Title"].ToString();
sing.AnswerA = dr["AnswerA"].ToString();
sing.AnswerB = dr["AnswerB"].ToString();
sing.AnswerC = dr["AnswerC"].ToString();
sing.AnswerD = dr["AnswerD"].ToString();
sing.Answer = dr["Answer"].ToString();
list.Add(sing);
}
return list;
}
}
public bool InsertQuestion(SingleProblem iq)
{
string sql = @"INSERT INTO SingleProblem
(CourseID,Title,AnswerA,AnswerB,AnswerC,AnswerD,Answer)
VALUES
(@CourseID,@Title,@AnswerA,@AnswerB,@AnswerC,@AnswerD,@Answer)";
SqlParameter[] para = new SqlParameter[]
{
new SqlParameter("@CourseID",iq.CourseID),
new SqlParameter("@Title",iq.Title),
new SqlParameter("@AnswerA",iq.AnswerA),
new SqlParameter("@AnswerB",iq.AnswerB),
new SqlParameter("@AnswerC",iq.AnswerC),
new SqlParameter("@AnswerD",iq.AnswerD),
new SqlParameter("@Answer",iq.Answer)
};
int db = DBHelp.ExecuteCommand(sql, para);
if (db > 0)
{
return true;
}
else
{
return false;
}
}
public static bool UpdateSingleSelected(SingleProblem spp)
{
if (SingleSelectedService.UpdateQuestion(spp))
{
return true;
}
else
{
return false;
}
}
public static bool AddSingleSelected(SingleProblem sp)
{
if (SingleSelectedService.InsertQuestion(sp))
{
return true;
}
else
{
return false;
}
}
public bool UpdateQuestion(SingleProblem uq)
{
string sql = @"UPDATE SingleProblem
SET CourseID =@CourseID, Title =@Title, AnswerA =@AnswerA, AnswerB =@AnswerB,
AnswerC =@AnswerC, AnswerD =@AnswerD, Answer =@Answer where ID=@ID";
SqlParameter[] param = new SqlParameter[]
{
new SqlParameter("@CourseID",uq.CourseID),
new SqlParameter("@Title",uq.Title),
new SqlParameter("@AnswerA",uq.AnswerA),
new SqlParameter("@AnswerB",uq.AnswerB),
new SqlParameter("@AnswerC",uq.AnswerC),
new SqlParameter("@AnswerD",uq.AnswerD),
new SqlParameter("@Answer",uq.Answer),
new SqlParameter("@ID",uq.ID)
};
int i = DBHelp.ExecuteCommand(sql, param);
if (i > 0)
{
return true;
}
else
{
return false;
}
}
public List<SingleProblem> selectSingQuestion(string UserId, int PaperId)
{
using (SqlConnection con = DBHelp.GetConnection())
{
string sql = @"SELECT dbo.UserAnswer.id,dbo.UserAnswer.Mark, dbo.UserAnswer.UserAnswer, dbo.UserAnswer.ExamTime, dbo.SingleProblem.Title, dbo.SingleProblem.AnswerB,
dbo.SingleProblem.AnswerA, dbo.SingleProblem.AnswerC, dbo.SingleProblem.AnswerD, dbo.SingleProblem.Answer, dbo.Paper.PaperName
FROM dbo.UserAnswer INNER JOIN
dbo.SingleProblem ON dbo.UserAnswer.TitleID = dbo.SingleProblem.ID AND dbo.UserAnswer.Type = '单选题' INNER JOIN
dbo.Paper ON dbo.UserAnswer.PaperID = dbo.Paper.PaperID
where
dbo.UserAnswer.UserID='" + UserId + "' and dbo.UserAnswer.PaperID='" + PaperId + "'";
SqlCommand cmd = new SqlCommand(sql, con);
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
List<SingleProblem> list = new List<SingleProblem>();
while (dr.Read())
{
SingleProblem Sing = new SingleProblem();
Sing.ID = Convert.ToInt32(dr["id"]);
Sing.Mark = Convert.ToInt32(dr["Mark"]);
Sing.UserAnswer = dr["UserAnswer"].ToString();
Sing.ExamTime = Convert.ToDateTime(dr["ExamTime"]);
Sing.Title = dr["Title"].ToString();
Sing.AnswerA = dr["AnswerA"].ToString();
Sing.AnswerB = dr["AnswerB"].ToString();
Sing.AnswerC = dr["AnswerC"].ToString();
Sing.AnswerD = dr["AnswerD"].ToString();
Sing.Answer = dr["Answer"].ToString();
Sing.PaperName = dr["PaperName"].ToString();
list.Add(Sing);
}
return list;
}
}
public List<SingleProblem> GetSingleProblemList()
{
using (SqlConnection con = DBHelp.GetConnection())
{
string sql = "select * from SingleProblem";
SqlCommand cmd = new SqlCommand(sql, con);
con.Open();
List<SingleProblem> list = new List<SingleProblem>();
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
SingleProblem sing = new SingleProblem();
sing.ID = Convert.ToInt32(dr["ID"]);
sing.CourseID = Convert.ToInt32(dr["CourseID"]);
sing.Title = dr["Title"].ToString();
list.Add(sing);
}
return list;
}
}
