ASP.NET MVC Ajax - Is it possible to execute a -GENERATED- Ajax link with keyboard input?
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05-09-2019 - |
Question
Is anybody able to -execute- a generated Ajax.ActionLink when a user presses a key on the keyboard? (This is needed for accessibility)
NOTE: I'm using ASP.NET MVC + Microsoft Js libraries (...Ajax.js / ...MvcAjax.js) + jQuery
Javascript to capture keypress (IE + Firefox)
$(document).keypress(function(event) {
if(event.keyCode == 27) {
//execution here
var a = document.getElementById('linkid');
}
});
Html generated by ASP.NET MVC (Ajax.ActionLink())
<a id="linkid" href="/controller/action" onclick="
Sys.Mvc.AsyncHyperlink.handleClick(this, new Sys.UI.DomEvent(event),
{ insertionMode: Sys.Mvc.InsertionMode.replace,
updateTargetId: 'SomeDivId' });
">LinkText</a>
The following is not what i'm looking for, this doesn't work!
$(document).keypress(function(event) {
if(event.keyCode == 27) {
var a = document.getElementById('linkid');
a.onclick(); //doesn't exist in Firefox
a.click(); //doesn't "work" in Firefox (reference to "this" [a] is needed .NET MVC javascript)
a["onclick"](); //same as .onclick()
a["click"](); //same as .click()
//or even:
a.onclick.apply(a); //doesn't exist in Firefox
a.click.apply(a); //Somehow keeps "this" reference, but throws Sys.ArgumentUndefinedException
}
});
Solution
Have you tried using jQuery's trigger mechanism?
$(document).keypress( function(e) {
if (e.keyCode == 27) {
$(this).trigger('click');
}
}
Failing that, you could just invoke the href, which will do a full postback, but should accomplish the desired action if the action is written to handle both AJAX and non-AJAX requests.
$(document).keypress( function(e) {
if (e.keyCode == 27) {
location.href = $(this).attr('href');
}
}
OTHER TIPS
Please Try this:
var a = document.getElementById('linkid');
$(a).trigger('click');
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