/// <summary>
/// Shows how to Update an existing record by Primary Key
/// </summary>
private void Update()
{
// first instantiate a new CourseEnrollmentInfo
CourseEnrollmentInfo objCourseEnrollmentInfo = new CourseEnrollmentInfo();
// assign the existing primary key(s)
// of the record you want updated
objCourseEnrollmentInfo.EnrollmentId = 12;
// assign values you want updated
objCourseEnrollmentInfo.CourseId = 12;
objCourseEnrollmentInfo.StudentId = 12;
objCourseEnrollmentInfo.Comments = "abc";
// finally, update an existing record
objCourseEnrollmentInfo.Update();
}