Question

我是ASP.Net MVC的新手。我有一个名为Index.cshtml的视图。我在homeController，'Index'和'saveAttendance'中有两个操作。首先，进行索引操作，并从＆＃39;索引＆＃39;返回的视图中返回数据。行动被发送到＆＃39; saveAttendance＆＃39;行动。完成＆＃39; saveAttendance＆＃39;中的所有功能之后动作完成我需要返回查看＆＃39; Index.cshtml＆＃39;在viewbag中成功的消息。我没有将视图分配给＆＃39; saveAttendance＆＃39;行动。我只需要返回查看索引＆＃39;动作。

我的家庭控制器代码：

public ActionResult Index()
{
    try
    {
        ViewBag.nepali_date = dc.ToBS(DateTime.Now);
    }
    catch (Exception ex)
    {
        throw ex;
    }

    return View();
}

public void saveAttendance(attendance_entry entryObj)
{
    try
    {
        DateConverter dc = new DateConverter();
        DateTime current_date = entryObj.current_date;
        string nep_date = entryObj.nep_date;
        DateTime current_time = entryObj.current_time;
        string current_day = entryObj.current_day;
        int staff_id = Convert.ToInt32(Session["staff_id"]);
        string in_time = entryObj.in_time;
        string out_time = entryObj.out_time;
       if( DAL.Attendance.Model.exists(staff_id.ToString())!=0)
        {
            ViewBag.message = "Attendance for today is already made.";
            return;
        }
        DAL.Attendance.Model.insert(nep_date, staff_id,current_date, current_time, current_day,in_time,out_time);
        ViewBag.message = "Record saved successfully";
        RedirectToAction("Index");           
    }
    catch (Exception)
    {
        ViewBag.message = "Failed to save attendance record";       
    }

}

Answer 1

将saveAttenance重命名为Index以处理POST。

public ActionResult Index() {
    ViewBag.nepali_date = dc.ToBS(DateTime.Now);
    return View();
}

[HttpPost]
public ActionResult Index(attendance_entry entryObj) {
    try {
        var dc = new DateConverter();
        var current_date = entryObj.current_date;
        var nep_date = entryObj.nep_date;
        var current_time = entryObj.current_time;
        var current_day = entryObj.current_day;
        var staff_id = Convert.ToInt32(Session["staff_id"]);
        var in_time = entryObj.in_time;
        var out_time = entryObj.out_time;
        if( DAL.Attendance.Model.exists(staff_id.ToString())!=0) {
            ViewBag.message = "Attendance for today is already made.";                
        } else {
            DAL.Attendance.Model.insert(nep_date, staff_id,current_date, current_time, current_day,in_time,out_time);
            ViewBag.message = "Record saved successfully";
        }
    } catch (Exception) {
        ViewBag.message = "Failed to save attendance record";
    }

    ViewBag.nepali_date = dc.ToBS(DateTime.Now);
    return View();
}

并在视图中更新表单以POST到正确的操作。

Answer 2

问题是函数的返回类型“saveAttendance”这是无效的，并且在“ saveAttendance ”的末尾你正在做RedirectToAction("Index")，最终调用索引ActionResult但由于“saveAttendance”无效，因此您不会被重定向到索引视图。

只做三个小调整

将public void saveAttendance(attendance_entry entryObj)更改为public ActionResult Index(attendance_entry entryObj)
在 saveAttendance 函数结束时才写 Return RedirectToAction("Index"); 代替 RedirectToAction("Index");
使用[ChildActionOnly]以便网址无法访问 saveAttendance

这是代码

[ChildActionOnly]
        public ActionResult saveAttendance(attendance_entry entryObj)
        {
            try
            {
                DateConverter dc = new DateConverter();
                DateTime current_date = entryObj.current_date;
                string nep_date = entryObj.nep_date;
                DateTime current_time = entryObj.current_time;
                string current_day = entryObj.current_day;
                int staff_id = Convert.ToInt32(Session["staff_id"]);
                string in_time = entryObj.in_time;
                string out_time = entryObj.out_time;
                if (DAL.Attendance.Model.exists(staff_id.ToString()) != 0)
                {
                    ViewBag.message = "Attendance for today is already made.";
                    return;
                }
                DAL.Attendance.Model.insert(nep_date, staff_id, current_date, current_time, current_day, in_time, out_time);
                ViewBag.message = "Record saved successfully";
                return RedirectToAction("Index");
            }
            catch (Exception)
            {
                ViewBag.message = "Failed to save attendance record";
            }

        }`

将ViewBag中的消息从控制器传递到ASP.Net MVC中的视图

2 个答案: