public async Task <ActionResult> EditGrade(GradeEditViewModel model)
{
if (ModelState.IsValid)
{
var grade = await InstitutionManager.FindGradeByIdAsync(model.Id);
if (grade == null)
{
ModelState.AddModelError("", "未找到此项grade");
return(View(model));
}
grade.GradeNum = model.GradeNumber;
await InstitutionManager.UpdateGradeAsync(grade);
return(RedirectToAction("AllGrade"));
}
return(View(model));
}