public ArrayList readClassNames()
{
ArrayList allClassNames = new ArrayList();
string query = "SELECT ClassName from Class";
conn.Open();
SqlCommand cmd = new SqlCommand(query, conn);
SqlDataReader re = cmd.ExecuteReader();
while (re.Read())
{
SchoolClass cls = new SchoolClass(re["ClassName"].ToString());
allClassNames.Add(cls);
}
conn.Close();
return(allClassNames);
}
public SchoolClass readSingleSchoolClass(string id)
{
string query = "SELECT * from Class where ClassID = @id";
SchoolClass selectedSchoolClass = new SchoolClass();
conn.Open();
SqlCommand cmd = new SqlCommand(query, conn);
cmd.Parameters.AddWithValue("@id", id);
SqlDataReader re = cmd.ExecuteReader();
while (re.Read())
{
selectedSchoolClass = new SchoolClass(re["ClassID"].ToString(), re["ClassTeacherID"].ToString(), re["ClassSubject"].ToString(), re["ClassYearGroup"].ToString(), re["ClassName"].ToString());
}
conn.Close();
return(selectedSchoolClass);
}