public DataTable GetExistingCoursesBL()
{
DataTable dt = new DataTable();
CourseDA CourseDAOBJ = new CourseDA();
dt = CourseDAOBJ.GetExistingCoursesFromDB();
return(dt);
}
public bool UpdateNewCourseandSendToDA(DAL.DAO.CourseO aCourseInfo)
{
if (aCourseInfo.Id == " ")
{
this.Message = "Id is incorrect";
return(false);
}
else
{
if (aCourseInfo.Name == " ")
{
this.Message = "Name is Incorrect";
return(false);
}
else
{
if (aCourseInfo.Credit <= 0 || aCourseInfo.Credit > 100)
{
this.Message = "Credit is Overlaped";
return(false);
}
else
{
if (aCourseInfo.Semister == " ")
{
this.Message = "Semister is incorrect";
return(false);
}
else
{
if (aCourseInfo.Teacher == " ")
{
this.Message = "Teacher Info is Incorrect";
return(false);
}
else
{
if (aCourseInfo.CourseFee == " ")
{
this.Message = "CourseFee is Incorrect";
return(false);
}
else
{
CourseDA CourseDAOBj = new CourseDA();
bool result = CourseDAOBj.UpdateNewCourseToDB(aCourseInfo);
return(result);
}
}
}
}
}
}
}
public bool DeletACourseBL(DAL.DAO.CourseO aCourseInfo)
{
if (aCourseInfo.Id == " ")
{
this.Message = "Id is incorrect";
return(false);
}
else
{
CourseDA CourseDAOBj = new CourseDA();
bool result = CourseDAOBj.DeletACourseFromDB(aCourseInfo);
return(result);
}
}
public static bool Delete(string courseID)
{
return(CourseDA.Delete(courseID));
}
public static int Save(Course myCourse)
{
return(CourseDA.Save(myCourse));
}
public static CourseList GetItem(string id, bool isStudent)
{
return(CourseDA.GetItem(id, isStudent));
}
public static CourseList GetItem()
{
return(CourseDA.GetItem());
}
public static Course GetItem(string courseID)
{
return(CourseDA.GetItem(courseID));
}
