public ActionResult Create(CourseDate lesson)
{
DateTime firstCourse = lessonB.FirstCourseDate(lesson.CourseID);
try
{
if (ModelState.IsValid && (firstCourse == default(DateTime) || firstCourse == lesson.FirstCourse))
{
lessonB.AddLesson(lesson);
return(RedirectToAction("Index"));
}
}
catch (RetryLimitExceededException /* dex */)
{
//Log the error (uncomment dex variable name and add a line here to write a log.)
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
if (firstCourse != default(DateTime) && firstCourse != lesson.FirstCourse)
{
ModelState.AddModelError("", "This course already have first date course : " + firstCourse.ToString("d"));
PopulateCourseDropDownList(lesson.CourseDateID);
return(View(lesson));
}
PopulateCourseDropDownList(lesson.CourseDateID);
return(View(lesson));
}