/// <summary>
/// Clones a parameter so that it can be used with another command.
/// </summary>
/// <param name="command">The command to use.</param>
/// <param name="parameter">The parameter to clone.</param>
/// <returns>The clone.</returns>
public override IDataParameter CloneParameter(IDbCommand command, IDataParameter parameter)
{
// thank you, oracle
OracleParameter p = (OracleParameter)parameter;
return((IDataParameter)p.Clone());
}
private void GetRetakeAndAdjustment()
{
try
{
using (OracleConnection connection = new OracleConnection(OracleDataBaseConnection.data))
{
connection.Open();
OracleParameter userId = new OracleParameter
{
ParameterName = "in_user_id",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Int64,
Value = _student.UserId
};
LoadRetakesAndAdjustmentFromTables("select subject, status, TO_CHAR(adjustment_date, 'DD.MM.YYYY') adjustment_date, TO_CHAR(access_date, 'DD.MM.YYYY') access_date from adjustments where user_id = :in_user_id",
connection, userId, m_AdjustmentTextBlock, m_AdjustmentSeparator, dg_Adjustments);
LoadRetakesAndAdjustmentFromTables("select subject, status, TO_CHAR(retake_date, 'DD.MM.YYYY') retake_date from retakes where user_id = :in_user_id",
connection, userId.Clone() as OracleParameter, m_RetakeTextBlock, m_RetakeSeparator, dg_Retakes);
connection.Close();
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
throw;
}
}
private void InitializeComboBox()
{
string message =
"Data could not be retrieved. You or students may have entered your personal information incorrectly";
try
{
OracleParameter faculty = new OracleParameter
{
ParameterName = "in_faculty",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Varchar2,
Value = _teacher.Faculty
};
using (OracleConnection connection = new OracleConnection(OracleDataBaseConnection.data))
{
connection.Open();
GetInfoFromTables("select subject from subjects where faculty = :in_faculty", "subject", s_subjectsComboBox, connection, new[] { faculty }, "Error when reading subjects");
GetInfoFromTables("select student_name || ' ' || course || '-' || num_group student " +
"from student_info where faculty = :in_faculty", "student", s_studentsComboBox, connection, new[] { faculty.Clone() as OracleParameter }, message);
connection.Close();
}
foreach (var note in ue.notes)
{
s_noteComboBox.Items.Add(note);
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
throw;
}
}
private void InitializeComboBox()
{
try
{
using (OracleConnection connection = new OracleConnection(OracleDataBaseConnection.data))
{
OracleParameter faculty = new OracleParameter
{
ParameterName = "in_faculty",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Varchar2,
Value = _student.Faculty
};
connection.Open();
GetInfoFromTables("select subject from subjects where faculty = :in_faculty", "subject", a_subjectComboBox, connection, faculty);
GetInfoFromTables("select teacher_name from teacher_info where faculty = :in_faculty", "teacher_name", a_teacherComboBox, connection, faculty.Clone() as OracleParameter);
connection.Close();
}
a_teacherComboBox.SelectedIndex = 0;
a_subjectComboBox.SelectedIndex = 0;
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
private void InitializeComboBox()
{
string message =
"Data could not be retrieved. You or students may have entered your personal information incorrectly";
try
{
OracleParameter faculty = new OracleParameter
{
ParameterName = "in_faculty",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Varchar2,
Value = _student.Faculty
};
OracleParameter specialization = new OracleParameter
{
ParameterName = "in_specialization",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Varchar2,
Value = _student.Specialization
};
OracleParameter numGroup = new OracleParameter
{
ParameterName = "in_num_group",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Int64,
Value = _student.Group
};
OracleParameter course = new OracleParameter
{
ParameterName = "in_course",
Direction = ParameterDirection.Input,
OracleDbType = OracleDbType.Int64,
Value = _student.Course
};
using (OracleConnection connection = new OracleConnection(OracleDataBaseConnection.data))
{
connection.Open();
GetInfoFromTables("select subject from subjects where faculty = :in_faculty", "subject", p_subjectsComboBox, connection, new OracleParameter[] { faculty }, "Error when reading subjects");
GetInfoFromTables("select student_name from student_info where faculty = :in_faculty and specialization = :in_specialization and num_group = :in_num_group and course = :in_course", "student_name", p_studentsComboBox, connection, new [] { faculty.Clone() as OracleParameter, specialization, numGroup, course }, message);
connection.Close();
}// specialization = :in_specialization and and num_group = :in_num_group "and course = :in_course
foreach (var t in _university.countOfGaps)
{
p_gapsComboBox.Items.Add(t);
}
p_studentsComboBox.SelectedIndex = 0;
p_subjectsComboBox.SelectedIndex = 0;
p_gapsComboBox.SelectedIndex = 0;
}
catch (Exception e)
{
MessageBox.Show(e.Message);
this.Close();
}
}