public void GetSubjects()
{
List <clsStd> listStdInfo = new List <clsStd>();
listStdInfo.Clear();
string cs = ConfigurationManager.ConnectionStrings["student_data"].ConnectionString;
using (SqlConnection con = new SqlConnection(cs))
{
SqlCommand cmd = new SqlCommand("select add_std_info.std_id,add_std_info.std_name, add_std_info.std_lastname,subjects.subjects_id, subjects.subjects_name, marks.marks_id, marks.std_marks from add_std_info left join marks on add_std_info.std_id=marks.std_id left join subjects on subjects.subjects_id=marks.subjects_id order by add_std_info.std_name, subjects.subjects_name", con);
con.Open();
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
clsStd StdInfo = new clsStd();
StdInfo.std_id = rdr["std_id"].ToString();
StdInfo.std_name = rdr["std_name"].ToString();
StdInfo.std_lastname = rdr["std_lastname"].ToString();
StdInfo.subjects_id = rdr["subjects_id"].ToString();
StdInfo.subjects_name = rdr["subjects_name"].ToString();
StdInfo.marks_id = rdr["marks_id"].ToString();
StdInfo.std_marks = rdr["std_marks"].ToString();
listStdInfo.Add(StdInfo);
}
}
JavaScriptSerializer js = new JavaScriptSerializer();
Context.Response.Clear();
Context.Response.ContentType = "application/json";
Context.Response.AddHeader("content-length", js.Serialize(listStdInfo).Length.ToString());
Context.Response.Flush();
Context.Response.Write(js.Serialize(listStdInfo));
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
public void GetPositions()
{
List <clsStd> listStdInfo = new List <clsStd>();
listStdInfo.Clear();
string cs = ConfigurationManager.ConnectionStrings["student_data"].ConnectionString;
using (SqlConnection con = new SqlConnection(cs))
{
SqlCommand cmd = new SqlCommand("select sum(cast(marks.std_marks as float)) as marks , add_std_info.std_id from add_std_info , marks where add_std_info.std_id=marks.std_id group by add_std_info.std_id order by marks desc", con);
con.Open();
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
clsStd StdInfo = new clsStd();
StdInfo.std_id = rdr["std_id"].ToString();
StdInfo.std_marks = rdr["marks"].ToString();
listStdInfo.Add(StdInfo);
}
}
JavaScriptSerializer js = new JavaScriptSerializer();
Context.Response.Clear();
Context.Response.ContentType = "application/json";
Context.Response.AddHeader("content-length", js.Serialize(listStdInfo).Length.ToString());
Context.Response.Flush();
Context.Response.Write(js.Serialize(listStdInfo));
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
public void UpdateMarks(clsStd ObjEditStdInfo)
{
List <recexist> listrecexist = new List <recexist>();
listrecexist.Clear();
string ConnectionString = ConfigurationManager.ConnectionStrings["student_data"].ConnectionString;
using (SqlConnection objcon = new SqlConnection(ConnectionString))
{
objcon.Open();
SqlCommand cmd3 = new SqlCommand("SELECT marks_id FROM marks WHERE subjects_id ='" + ObjEditStdInfo.subjects_id + "' and std_id ='" + ObjEditStdInfo.std_id + "' ", objcon);
SqlDataReader re = null;
re = cmd3.ExecuteReader();
if (re.HasRows)
{
string marksId = "";
while (re.Read())
{
marksId = re["marks_id"].ToString();
}
objcon.Close();
objcon.Open();
SqlCommand cmnd2 = new SqlCommand("UPDATE marks SET std_marks ='" + ObjEditStdInfo.std_marks + "' WHERE marks_id= '" + marksId + "'", objcon);
cmnd2.ExecuteNonQuery();
objcon.Close();
recexist Objrecexist = new recexist();
Objrecexist.Dataexist = "found";
listrecexist.Add(Objrecexist);
}
else
{
objcon.Close();
objcon.Open();
SqlCommand cmnd2 = new SqlCommand("insert into marks (std_marks,std_id,subjects_id) values('" + ObjEditStdInfo.std_marks + "','" + ObjEditStdInfo.std_id + "' ,'" + ObjEditStdInfo.subjects_id + "')", objcon);
cmnd2.ExecuteNonQuery();
objcon.Close();
recexist Objrecexist = new recexist();
Objrecexist.Dataexist = "Not Found";
listrecexist.Add(Objrecexist);
}
objcon.Close();
}
JavaScriptSerializer js = new JavaScriptSerializer();
Context.Response.Clear();
Context.Response.ContentType = "application/json";
Context.Response.AddHeader("content-length", js.Serialize(listrecexist).Length.ToString());
Context.Response.Flush();
Context.Response.Write(js.Serialize(listrecexist));
HttpContext.Current.ApplicationInstance.CompleteRequest();
}