Why is Ajax call in ASP MVC not working?

Why is Ajax call in ASP MVC not working?

CommandLineAPIImpl.$ @ VM94:187 (anonymous function) @ VM121:1 everything looks fine, but did not get value from controller to ajax call, give as undefined. I just tried returning number from controller to ajax call, still gets data value is undefined. please try to solve it,

How are jQuery Ajax parameters passed to MVC?

I’m passing two string parameters from a jQuery ajax call to an MVC controller method, expecting a json response back. I can see that the parameters are populated on the client side but the matching parameters on the server side are null.

How to call a method from an AJAX call?

But how can I call one of these methods from an AJAX call. I have an older example with a typical MVC view and controller but how does this work with a Razor Page? The OnPost is not called from the Ajax call.

Why is the onpost not called from the Ajax call?

The OnPost is not called from the Ajax call. Razor Pages automatically generates and validates Antiforgery tokens to prevent CSRF attacks. Since you aren’t sending any token within your AJAX callback, the request fails. To solve this problem you will have to:

How do you handle errors from Ajax calls?

Return an error code on the server side using the HTTP error the best equates to what the error is. Then use the error callback. This will also allow you to show errors given by your webserver. It’s pretty late to answer this question but I think It will be beneficial to some one using es6 and jquery 2.2.

What’s the solution to the Ajax loading problem?

The problem is that Ajax requests do not trigger this “loading” indicator that is built into browsers. Solution: Insert a Similar Loading Indicator Near Content That’s Loading. The common solution to this is to incorporate a custom progress indicator into the Ajax request. A number of websites offer free “Ajax loading” graphics.

What are the parameters of an Ajax error function?

The required parameters in an Ajax error function are jqXHR, exception and you can use it like below: