I have a question concerning functions with jQuery. I have a function that once the browser is ready the function finds a specific table and then adds hover & click functionality to it.
I am trying to call this function from code behind in an asp .net page due to the fact that once someone adds to the database the update panel fires and retrieves a gridview (the table that has been affected by the function at document.ready). When it comes back it is the plain table again.
Here is the original functions:
$("#GridView1").find("tr").click(function(e) {
var row = jQuery(this)
//var bID = row.children("td:eq(0)").text();
$('#tbHiddenBatchID').val(row.children("td:eq(0)").text());
//Took out repetitive code, places values from table into modal
e.preventDefault();
$('#modalContentTest').modal({ position: ["25%", "5%"] });
//row.addClass('highlight');
//$('#tbEdit').val(bID);
});
//here is the function that adds hover styling
$("#GridView1").find("tr").click(function() {
return $('td', this).length && !$('table', this).length
}).css({ background: "ffffff" }).hover(
function() { $(this).css({ background: "#C1DAD7" }); },
function() {
$(this).css({ background: "#ffffff" });
});
OK, what I tried to do is create a function, call it on document.ready and also in the code behind when after the database has been updated.
Here's what I did:
function helpGrid() {
$("#GridView1").find("tr").click(function(e) {
var row = jQuery(this)
//var bID = row.children("td:eq(0)").text();
$('#tbHiddenBatchID').val(row.children("td:eq(0)").text());
//
e.preventDefault();
$('#modalContentTest').modal({ position: ["25%", "5%"] });
//row.addClass('highlight');
//$('#tbEdit').val(bID);
});
//Haven't even tried to add the hover stlying part yet; can't get this to work.
}
When I try to call helpGrid(); I get an error that's it not defined...
Obviously I'm a jQuery newb but I do have jQuery in Action & I'm scouring it now looking for an answer...
Please help..
Thanks!!!
Since you are using an update panel, the entire page does not postback and the document.ready stuff never gets hit... Below is where you can add a function to run at the end of the update, so resetMyTableStuff(); is where you'll want to do your magic...
Try adding something like this...
function pageLoad() {
if (!Sys.WebForms.PageRequestManager.getInstance().get_isInAsyncPostBack()) {
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(endRequestHandler);
Sys.WebForms.PageRequestManager.getInstance().add_initializeRequest(initializeRequest);
}
}
function endRequestHandler(sender, args) {
resetMyTableStuff();
}
function initializeRequest(sender, args) {
//just in case you need to do it...
}
Related
Hello I would like to disable the woocommmerce register page button after one click to avoid multiple clicks.
I have searched the forums and found a bunch of solutions for custom forms and I've tried the following JS code but had no luck. I have a feeling I am setting the wrong selector because I cannot for the life of me figure out what the correct selector for the default register button is.
<script>
function disableButton() {
var btn = document.getElementById('woocommerce-register-nonce');
btn.disabled = true;
btn.innerText = 'Posting...'
}
</script>
I've also tried :
<script>
jQuery('woocommerce-Button.woocommerce-button.button.woocommerce-form-register__submit').live('click', function (e) {
var self = this;
$(this).attr("disabled", "disabled");
do_something();
setTimeout(function () {
$(self).removeAttr('disabled');
}, 10000);
});
</script>
Some guidance would be very much appreciated.
Update!
Based on Onboardmass's suggestion I have corrected the selector and got it partially working using jquery.
<script>
jQuery('.woocommerce-Button.woocommerce-button.button.woocommerce-form-register__submit').click(function(){
jQuery(this).attr("disabled", "disabled");
});
</script>
The button now gets disabled on click however the issue I'm facing now is that the form does not get submitted.
The issue you're facing is because the selector is incorrect. It should be .woocommerce-Button.woocommerce-button.button.woocommerce-form-register__submit.
For anyone else who may need this I was able to figure this one out by reading through the suggestions and other threads I found. Thank you Onboardmass & Martin for the guidance!
The time out function is required for the click to register.
<script>
$(document).ready(function () {
$(".woocommerce-Button.woocommerce-button.button.woocommerce-form-register__submit").click(function () {
setTimeout(function () { disableButton(); }, 0);
});
function disableButton() {
$(".woocommerce-Button.woocommerce-button.button.woocommerce-form-register__submit").prop('disabled', true);
}
});
</script>
I am using CodeMirror and attempting to do some CSS styling to the autocomplete pop up. This is a bit difficult, because I need it to not go away when I go to inspect styles and stuff.
So I hunted for a way to do this. I found this code in show-hint.js
if (options.closeOnUnfocus !== false) {
var closingOnBlur;
cm.on("blur", this.onBlur = function () { closingOnBlur = setTimeout(function () { completion.close(); }, 100); });
cm.on("focus", this.onFocus = function () { clearTimeout(closingOnBlur); });
}
If I comment this out, then the autocomplete pop up does not go away when I click on other things; That's what I wanted. But I thought I would explore this more and try to determine what to do to toggle this on and off at will.
So I wanted to be able to set this closeOnUnfocus option on my own. That seemed simple enough.
I cannot find a way to do this, though. Exploring further I found an example on code mirror's website that demonstrates a way to setup the autocomplete system using the following code;
CodeMirror.commands.autocomplete = function(cm) {
CodeMirror.showHint(cm, CodeMirror.hint.anyword);
}
Exploring further, show-hint.js starts out with a function called showHint that has this signature;
CodeMirror.showHint = function (cm, getHints, options) {
// We want a single cursor position.
if (cm.somethingSelected()) return;
if (getHints == null) {
if (options && options.async) return;
else getHints = CodeMirror.hint.auto;
}
if (cm.state.completionActive) cm.state.completionActive.close();
var completion = cm.state.completionActive = new Completion(cm, getHints, options || {});
CodeMirror.signal(cm, "startCompletion", cm);
if (completion.options.async)
getHints(cm, function (hints) { completion.showHints(hints); }, completion.options);
else
return completion.showHints(getHints(cm, completion.options));
};
Okay, so it stands to reason that I could accomplish what I want by passing my option through here; like this...
CodeMirror.commands.autocomplete = function (cm) {
CodeMirror.showHint(cm, CodeMirror.hint.anyword, {
closeOnUnfocus: false
});
}
But this doesn't work - in fact, it seems that the options just don't get passed at all. If I do a console.log in the show-hint.js, the options are outright ignored. They never get through.
So how can I pass options through? I am very confused.
If you want to change the styles of of the hint menu, just use the provided CSS hooks. There is no need to mess around with the autocomplete handlers. e.g.:
.CodeMirror-hints {
background-color: red;
}
.CodeMirror-hint {
background-color: green;
}
.CodeMirror-hint-active {
background-color: blue;
color: yellow;
}
And here's a live Demo.
I've just started to use Codemirror (v4.1) and I've found the same problem. After checking show-hint.js contents it seems that documentation is not updated.
Try to write this when you want to get the suggestions:
CodeMirror.showHint({hint: CodeMirror.hint.deluge, completeSingle: false, closeOnUnfocus: true});
If you need to use the async mode of getting suggestions (it was my case), now you have to do this before previous snippet:
CodeMirror.hint.deluge.async = true;
Hope this helps!
You can pass the options like this :
CodeMirror.showHint(cm,CodeMirror.hint.anyword,{completeSingle: false,closeOnUnfocus:false});
You can write the code as follows:
editor.on("keyup",function(cm){
CodeMirror.showHint(cm,CodeMirror.hint.deluge,{completeSingle: false});
});
It's working for me.
This seems very simple, but for some reason it's not working as expected.
I am trying to make a very simple jQuery extension/plugin which allows me to simply reduce my lines of code when requiring a trigger on an enter key (and a similar for an escape)
Here's my code:
$.fn.enterListen = function (callBack) {
$(this).on('keyup', function (e) {
if (e.keyCode == 13) {
callBack;
// $(this).enterListen(callBack); // trying to rebind...
};
})
};
Then when an element is dynamically created with jquery we might do something like:
var input = $('<input'>).enterListen(function (){ alert("Enter was pressed"); });
$(input).appendTo('body');
Now we've added an input element to the page, in which we can type and when enter is pressed it triggers the alert.
This works, except, only once.
You can see a commented out line in my code above where I am trying to rebind the function the the element after the enter trigger is activated, and even that doesn't make it work a second time.
You can press as many other keys as you like before pressing Enter, but as soon as you do, it seems to unbind the keyup event.
IF... however, I run it like this:
function isEnter(e, ele) {
if ((e * 1) == 13) {
$(ele).click();
};
};
Called by:
var input = $('<input'>).on('keyup', function (e) { isEnter(e.keyCode, $(ok)) });
$(input).appendTo('body');
It works fine, but to me it is clumsier in the code, I am trying to create a library of extensions to make the inner coding of this project a bit shorter... perhaps I am just putting too much time into something I needn't...
Anyway, if anyone could shed any light on why the event becomes unbound, that'd be lovely!
Inside a jQuery plugin, this is the jQuery object, no need to rewrap it. e.which is normalized in jQuery. To execute a function you need parenthesis (). And most importantly, you need to return this otherwise the input variable will be undefined, and if you intend to do stuff inside your plugin with selectors containing multiple elements, you need to return this.each(function() { ... }) etc. as explained in the plugin authoring documentation from jQuery.
$.fn.enterListen = function (callBack) {
return this.each(function() {
$(this).on('keyup', function (e) {
if (e.which == 13) {
e.preventDefault();
callBack();
}
});
});
};
var input = $('<input />').enterListen(function (){
alert("Enter was pressed");
});
input.appendTo('body');
FIDDLE
I am beginning the process of moving away from the AjaxControlToolkit and toward jQuery. What I want to do is have one function that duplicates the functionality of the CollapsiblePanelExtender. For a particular set of hyperlink and div, the code looks like this:
$('#nameHyperLink').click(function() {
var div = $('#nameDiv');
var link = $('#nameHyperLink');
if (div.css('display') == 'none') {
link.text('Hide Data');
div.show(400);
}
else {
link.text('Show Data');
div.hide(400);
}
});
What I really want to do is only have to write this function once, then use it for many (approx 40) instances throughout my website. Ideally what I want is this:
function showHidePanel(divID,linkID,showText,hideText){
var div = $(divID);
var link = $(linkID);
if (div.css('display') == 'none') {
link.text('Hide Data');
div.show(400);
}
else {
link.text('Show Data');
div.hide(400);
}
});
I would then call this function from every HyperLink involved using OnClientClick.
Is there a way to do this?
Have you looked at the jquery accordian plugin?
recently I came up with the following problem:
In my web site in all html pages I call a function in body onLoad event:
<body onLoad="func1();">
This is part of my template for html, so it appears on every page in my site and I can't change that. Now, the deal is that on some pages, I need to call some other functions onload and I tried with window.onload property, but it wipes the calling of func1...
I now that I can just say:
window.onload = func2(); //where func2() calls to func1()
but this seems dirty and lame? Isn't it ?
So, is there a way to add some functions to those that are about to be executed onload, without deleting the old one? In addition I use asp.net if that could help ...
Thanks!
You can use jQuery to chain on load handlers. Repeatedly using jQuery.load or jQuery(document).ready will chain your handlers (I believe). You other option is to do it programmatically, which means you need an auxiliary function that will chain your onload handlers for you. You can do this with a closure (or anonymous function):
var addOnLoadHandler = function(newHandler) {
if (typeof window.onload != 'function') {
window.onload = newHandler;
}
else {
var oldHandler = window.onload;
window.onload = function() {
if (oldHandler) {
oldHandler();
}
newHandler();
};
}
};
You will have to bind your functions programmatically though, so you would have to do:
addOnLoadHandlers(function() {
alert("Hi I am the first onLoad handler!");
});
addOnLoadHandlers(function() {
alert("Hi I am the second onLoad handler!");
});
in a javascript file (or in your html file).
Another approach is to use an array:
var onloaders = new Array();
function runOnLoads() {
for (i = 0; i < onloaders.length; i++) {
try {
var handler = onloaders[i];
handler();
} catch(error) {
alert(error.message);
}
}
}
function addLoader(obj) {
onloaders[onloaders.length] = obj;
}
In your HTML or Javascript file you do:
addLoader(function() {
alert("Hi I am the first onLoad handler!");
});
addLoader(function() {
alert("Hi I am the second onLoad handler!");
});
Then in your html you can just do <body onload="runOnLoads()">
You may want to make the best out of anonymous functions:
function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
}
else {
window.onload = function() {
oldonload();
func();
}
}
}
Borrowed from the Top 10 custom JavaScript functions of all time.
jQuery has a nice shorthand for adding multiple defined handlers to the "ready" event (does not work with anonymous functions where you have to use $(document).ready(function(){});).
simply
$(myFunction);
$(myFunction2);
One big advantage is that if the DOM has already loaded, this still gets fired, whereas anything you bind to window.onload after the event will not get called.
have you considered a javascript library like jquery, i know that there are other approaches but jquery will make your life so much easier...
$(function(){
//Do stuff when DOM is loaded.
func1();
$('#link').click(function(){
//bind a click event
});
});
The classic approach is to just stick all of your functions at the bottom of the page :)
In jquery you can do
$(document).onload(function() {
// do something
}
//then later on do
$(document).onload(function() {
// do something here too!
}
jQuery will intelligently add both events to the onload event and both will be executed when the page loads. With jQuery you also get crossbrowser support as an added bonus.