public void GetAllCourseByStudent()
{
EnrollCourse _EnrollCourse = new EnrollCourse();
_EnrollCourse.DepartmentId = Convert.ToInt32(DepartmentDropDownList.SelectedValue);
CoursesDropDownList.DataSource = _EnrollCourseManager.GetAllCourseByStudent(_EnrollCourse.DepartmentId);
CoursesDropDownList.DataTextField = "CourseName";
CoursesDropDownList.DataValueField = "CourseCode";
CoursesDropDownList.DataBind();
CoursesDropDownList.Items.Insert(0, new ListItem("Select Courses", "0"));
}
