Alert not displaying in MVC

Question

1.00/5 (2 votes)

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After button click alert not displaying.Here i m using temp data for displaying alert.

What I have tried:

Controller

[HttpPost]
    public ActionResult PlanUpdate(string stripeToken, string stripeEmail, string btnSubmit, FormCollection form,  UpdatePlan model)
    {
        string SubscriptionId = Session["SubsId"].ToString();
        var btnValue = form["btnSubmitValue"];
        string apiKey = "****";
        var stripeClient = new StripeClient(apiKey);

        var subscriptionService = new StripeSubscriptionService(apiKey);
        var subscriptionService1 = new StripeSubscriptionUpdateOptions();
        subscriptionService1.PlanId = btnValue;
        subscriptionService1.Prorate = true;
        subscriptionService1.ProrationDate = System.DateTime.Now;
         StripeSubscription stripeSubscription = subscriptionService.Update (SubscriptionId, subscriptionService1);

        TempData["notice"] = "Successfully registered";

        return View("Index");
    }

View Page

<script>

    if ('@TempData["notice"]' != null) {
        alert("success");

    }
</script>

Posted 18-Jul-17 21:44pm

GrpSMK

Updated 3-Aug-17 2:36am

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Comments

F-ES Sitecore 19-Jul-17 4:38am

If it's not working then there is something about the flow of code that you're not telling us. The alert will actually always show if you have anything in TempData["notice"] or not.

Vincent Maverick Durano 19-Jul-17 23:10pm

Perhaps it has something to do with your if condition. Have you tried checking the value of your tempdata? Try alerting the value of your tempdata instead like:

alert('@TempData["notice"]');

GrpSMK 3-Aug-17 1:30am

Thank you,i used boot box alert solved my issue

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Zahid Mughal · Answer 1 · 2017-08-02T19:11:00

Because

TempData["notice"]

is not accessible in Javascript directly. Because ASP.NET parts of the code execute on the server. JavaScript is executed in the browser. The server just sees the JavaScript as text, it is meaningless and non-functional. Only when the browser receives the page and interprets the JS is it executed.

Try to use something link that, to access the c# variable in javascript.

<script>
var myArray = <% = new JavaScriptSerializer().Serialize(TempData) %>;
if(myArray['notice']!=null){
alert("Success");
} 
</script>

Hope it will helpful for you, please don't forget to mark my good rating. Thanks :)

VINEET MISHRA 086 · Answer 2 · 2017-08-03T02:36:00

Try This, I hope this will resolve your problem. However, I would suggest using viewbag instead of TempData, the viewbag Doesn’t require typecasting.

C#

public ActionResult About()
     {
         ViewBag.Message = "Your application description page.";
         TempData["notice"] = "Successfully registered";
         return View("Index");
     }

Here is the Javascript code

JavaScript

var temp='@(TempData["notice"])';
    if(temp !=null)
    {
        alert('sucsecc');
    }

Alert not displaying in MVC

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