In the ajax.cs class, I am calling methods from the javascript side. To register this on the default.aspx page load, I did the following:
Ajax.Utility.RegisterTypeForAjax(typeof(ajax));
Occasionally, some methods take a long time to execute. In such cases, I want to be able to abort the call. How can I do this?
When calling the method from JavaScript, it looks like this:
ajax.testMethod()
When your controller action is set to return a Task, it allows you to include a cancellation token as a parameter. This token will be activated automatically if the HTTP request is terminated. You have the flexibility to manage this token within the action to cancel any lengthy operations as needed.
Have you considered cancelling the ajax request from the JavaScript side instead of aborting it from the C# side? You can set a timeout parameter in your ajax configuration that will trigger the .error() function if the timeout occurs. You can also define a callback function for when the ajax request times out.
For vanilla JavaScript:
var ajax = new XMLHttpRequest();
ajax.open('POST', 'your url');
ajax.timeout = 10000; // set timeout in milliseconds
ajax.ontimeout = function(){ } // optional callback function for timeout
For jQuery:
$.ajax({
url: 'yoururl',
timeout: 10000,
error: function(){
}
});
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