public void DeleteOneRegistraion()
{
Registration regObj = new Registration();
Student studentObj = new Student();
studnetUI.Query();
Console.Write("Enter Student ID: ");
regObj.STUDENTID = int.Parse(Console.ReadLine());
studentObj.ID = regObj.STUDENTID;
registraionData.QueryByStudent(studentObj);
Console.Write("Enter Course ID: ");
regObj.COURSEID = int.Parse(Console.ReadLine());
registraionData.DeleteOneRegistraion(regObj);
}
public void Insert(Registration regObj)
{
string insertQuery = "INSERT INTO Registraton (STUDENTID, COURSEID) VALUES (@STUDENTID, @COURSEID)";
SqlCommand insertCommand = new SqlCommand(insertQuery);
SqlParameter studentIDParam = new SqlParameter("@STUDENTID", SqlDbType.Int);
studentIDParam.Value = regObj.STUDENTID;
SqlParameter courseIDParam = new SqlParameter("@COURSEID", SqlDbType.Int);
courseIDParam.Value = regObj.COURSEID;
insertCommand.Parameters.Add(studentIDParam);
insertCommand.Parameters.Add(courseIDParam);
dataAccess.Execute(insertCommand);
}
public void DeleteOneRegistraion(Registration regObj)
{
string deleteQuery = "DELETE Registraton WHERE STUDENTID = @STUDENTID AND COURSEID = @COURSEID";
SqlCommand deleteCommand = new SqlCommand(deleteQuery);
SqlParameter studentIDParam = new SqlParameter("@STUDENTID", SqlDbType.Int);
studentIDParam.Value = regObj.STUDENTID;
SqlParameter courseIDParam = new SqlParameter("@COURSEID", SqlDbType.Int);
courseIDParam.Value = regObj.COURSEID;
deleteCommand.Parameters.Add(studentIDParam);
deleteCommand.Parameters.Add(courseIDParam);
dataAccess.Execute(deleteCommand);
}
public void Insert()
{
Registration regObj = new Registration();
studnetUI.Query();
Console.WriteLine();
Console.Write("Insert Student ID: ");
regObj.STUDENTID = int.Parse(Console.ReadLine());
courseUI.Query();
Console.WriteLine();
Console.Write("Insert Course ID: ");
regObj.COURSEID = int.Parse(Console.ReadLine());
registraionData.Insert(regObj);
QueryFullTable();
}
public void Update()
{
Registration regObj = new Registration();
QueryByStudent();
Console.Write("Enter Studend ID: ");
regObj.STUDENTID = int.Parse(Console.ReadLine());
Console.Write("Enter Course ID to Change: ");
regObj.COURSEID = int.Parse(Console.ReadLine());
courseUI.Query();
Console.Write("Enter New Course ID: ");
int newId = int.Parse(Console.ReadLine());
registraionData.Update(regObj, newId);
}
public void Update(Registration regObj, int changedCourseID)
{
string updateQuery = "UPDATE Registraton SET COURSEID = @COURSEID WHERE STUDENTID = @STUDENTID AND COURSEID = @COURSEIDTOSET";
SqlCommand updateCommand = new SqlCommand(updateQuery);
SqlParameter studentIDParam = new SqlParameter("@STUDENTID", SqlDbType.Int);
studentIDParam.Value = regObj.STUDENTID;
SqlParameter courseToSetIDParam = new SqlParameter("@COURSEIDTOSET", SqlDbType.Int);
courseToSetIDParam.Value = regObj.COURSEID;
SqlParameter changedCourseIDParam = new SqlParameter("@COURSEID", SqlDbType.Int);
changedCourseIDParam.Value = changedCourseID;
updateCommand.Parameters.Add(courseToSetIDParam);
updateCommand.Parameters.Add(studentIDParam);
updateCommand.Parameters.Add(changedCourseIDParam);
dataAccess.Execute(updateCommand);
}
