我正在开发一个在线考勤门户，其中我在控制器中设置了一个条件，即用户不能每天两次标记考勤。他们每天只能记录一次出勤情况。因此，如果员工在同一日期第二次标记出勤，我想在视图页面“创建”上显示一条消息“出勤已标记”。我已经设置了一条警报消息，但我想在员工标记出勤的视图页面上显示一条消息。我已经搜索了很多，但找不到更好的。这是我的控制器代码 [Authorize] public ActionResult Create() { Employee employee = JsonConvert.DeserializeObject<Employee>(User.Identity.Name); return View(new Attendance() { Emp_Id = employee.Emp_Id }); } [HttpPost] public ActionResult Create(Attendance attendance) { if (ModelState.IsValid) { try { var attdate = attendance.Date; var nextdate = attdate.AddDays(1); var id = Convert.ToInt32(Session["UserID"]); var isExist = db.Attendance.FirstOrDefault(i => i.Emp_Id == id && i.Date == attdate && i.Date < nextdate); if (isExist != null) { //Here i set the alert but i want to show message on view page. return Content("<script language='javascript' type='text/javascript'>alert('Your Attendance is Already Marked');</script>"); } else { //var res = tempDate.Date; db.Attendance.Add(attendance); db.SaveChanges(); } } catch (Exception ex) { Console.WriteLine(ex.InnerException.Message); } } return RedirectToAction("Index", "Attendance"); }
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绝地无双
TA贡献1946条经验 获得超4个赞
控制器：
if (isExist != null)
{
TempData["Msg"] = "Your Attendance is Already Marked'"
}
看法：
<body>
@if (TempData["Msg"] != null)
{
<script type="text/javascript">
window.onload = function () {
alert(@TempData["Msg"]);
};
</script>
}
</body>
MMTTMM
TA贡献1869条经验 获得超4个赞
为了显示我的消息，我这样做：
模型：
public class Alert
{
public const string TempDataKey = "TempDataAlerts";
public string AlertStyle { get; set; }
public string Message { get; set; }
public bool Dismissible { get; set; }
}
public class AlertStyle
{
public const string Success = "success";
public const string Information = "info";
public const string Warning = "warning";
public const string Danger = "danger";
}
我的基本控制器：
public class BaseController: Controller
{
public void Success(string message, bool dismissible = false)
{
AddAlert(AlertStyle.Success, message, dismissible);
}
public void Information(string message, bool dismissible = false)
{
AddAlert(AlertStyle.Information, message, dismissible);
}
public void Warning(string message, bool dismissible = false)
{
AddAlert(AlertStyle.Warning, message, dismissible);
}
public void Danger(string message, bool dismissible = false)
{
AddAlert(AlertStyle.Danger, message, dismissible);
}
private void AddAlert(string alertStyle, string message, bool dismissible)
{
var alerts = TempData.ContainsKey(Alert.TempDataKey)
? (List<Alert>)TempData[Alert.TempDataKey]
: new List<Alert>();
alerts.Add(new Alert
{
AlertStyle = alertStyle,
Message = message,
Dismissible = dismissible
});
TempData[Alert.TempDataKey] = alerts;
}
}
在我需要的任何控制器中就足够了：
public class PanelController : BaseController
{
public ActionResult Index()
{
Success($"Hello World!!!",true);
return View();
}
}
用于警报或消息的 PartialView
@{
var alerts = TempData.ContainsKey(Alert.TempDataKey)
? (List<Alert>)TempData[Alert.TempDataKey]
: new List<Alert>();
@*if (alerts.Any())
{
<hr />
}*@
foreach (var alert in alerts)
{
var dismissibleClass = alert.Dismissible ? "alert-dismissible" : null;
<div class="alert alert-@alert.AlertStyle @dismissibleClass">
@if (alert.Dismissible)
{
<button type="button" class="close pull-left" data-dismiss="alert" aria-hidden="true">×</button>
}
@Html.Raw(alert.Message)
</div>
}
}
最后：
<div class="mt-alerts">
@{ Html.RenderPartial("_Alerts"); }
</div>
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