How to call a keydown event for javascript when asp.net button is clicked

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ASP.NET

Javascript

is it possible to call a javascript keydown function for a textbox when a button is clicked?

Posted 21-Oct-15 23:54pm

Kats2512

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jaket-cp 22-Oct-15 6:12am

simulate keydown event javascript
google is your friend:
http://lmgtfy.com/?q=simulate+keydown+event+javascript
http://stackoverflow.com/questions/596481/simulate-javascript-key-events

Kats2512 22-Oct-15 6:22am

sorry I forgot to mention that I did a lot of googling but did not find what I desire.

Krunal Rohit 22-Oct-15 8:50am

$(function(){
$("button").click(function() {
$("input").trigger("keydown").promise().done(function(){alert('asd')});
});
});

Is it what you're looking for ?

-KR

Sergey Alexandrovich Kryukov 22-Oct-15 14:39pm

This is not the best approach; and the inquirer does not want to use jQuery. See the comment below and also Solution 1.
—SA

Kats2512 22-Oct-15 10:43am

this is jquery, i need javascript...

Sergey Alexandrovich Kryukov 22-Oct-15 14:39pm

Wrong response. jQuery is JavaScript. However, I understand if you wanted to avoid using jQuery. Solution 1 if jQuery-free.
—SA

Sergey Alexandrovich Kryukov 22-Oct-15 14:31pm

"Call an event" is a wrong concept. You can call an event handler, which is just a function.
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2015-10-22T08:37:00

Please see my comment to the question.

So, let me continue from this point. Instead of "calling a handler", which would be who knows what, you write some function. Call this function from two event handlers, or more, say, one would be a keydown event handler of one element, and another would be, say, click event handler of your button. This way, you will include identical functionality in two different event handlers, of the same element or different elements.

By the way, if you use "this" in your handlers, don't forget that they are different "this", different references, so be sure to pass appropriate reference to your function. If in your function you also want to use "this", you can use yourFunction.call or yourFunction.apply to pass it explicitly:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call[^],
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply[^].

—SA