//放弃课程
public ActionResult AjaxCourseDelete(int id)
{
LearnMyCourseBLL bll = new LearnMyCourseBLL();
MyCourseInfo model = bll.GetMyCourse(id);
bool result;
string msg;
if (model == null)
{
result = false;
msg = "课程不存在，请刷新页面！";
}
else
{
if (model.Result == 1)
{
result = false;
msg = "该课程已结束，不能放弃！";
}
else if (model.StatusClass == 5)
{
result = false;
msg = "该课程已开班，不能放弃！";
}
else if (model.StatusClass == 6)
{
result = false;
msg = "该课程已结业，不能放弃！";
}
else
{
using (TransactionScope trans = new TransactionScope())
{
try
{
bll.DeleteCourse(id);
trans.Complete();
result = true;
msg = "操作成功！";
}
catch (Exception)
{
result = false;
msg = "操作失败！";
}
}
}
}
return Json(new { Result = result, Msg = msg }, JsonRequestBehavior.AllowGet);
}
