public JsonResult IsCodeExist(string code)
{
List <Course> courses = courseBll.GetCourses();
bool isExist = courses.FirstOrDefault(u => u.Code.ToLowerInvariant().Equals(code.ToLower())) != null;
return(Json(!isExist, JsonRequestBehavior.AllowGet));
}
public IEnumerable <Course> Get()
{
try
{
return(courseBLL.GetCourses());
}
catch (Exception ex)
{
throw new ArgumentException("Internal server error");
}
}
//加载课程信息
private void LoadCourseInfo()
{
CourseBLL bll = new CourseBLL();
dataGridView1.DataSource = bll.GetCourses(teacher.TID);
}