I have 6 different links,and each link is going to call a different Ajax function.
I'm using the <a href> tag because I want it to appear as a link....Can I use this tag to call the Ajax function? or it only works with URL links?
THANKS!
This is how I call mine. I give my elements a class name such as 'clickable' then use Jquery's click function as so.
$('.clickable').click(function() {
//do ajax
});
Then in the function, I get the id of the element as so. var id = this.id, this will get the unique id of the element.
After that I use the $.post method of Jquery, the shorthand version of ajax and complete whatever call you need to make when the user clicks that link using the id.
Of course, in my case I never use the anchor tag, I just make is a button or apply the . click to the element I wish to add the ajax call to, but you could just surround the "link" in a span or a div to simulate the same effect.
Hope this helps in some way or another.
Text
or even as they wrote, with jquery
Text
<script type="text/javascript">
$(document).load(function(){
$('#blabla').click(function(){
alert("Clicked");
});
});
</script>
Yes you can incorpore the link in the following way:
- on your link you can write ...
Here you can see further information about this topic:
What is the difference between the different methods of putting JavaScript code in an ?
You can extract the value of the href attribute and use it for your AJAX call...
(it is actually the proposed way to handle it..)
yes you can, if any client side script functions (javascript or jquery) applied than it will execute first.
Related
I know that it is possible to send a user to a specific a name by using a link; however, for what I'm doing, I'd prefer not to use this link element.
Ex:
http://www.domain.com/link.php#aname
will send the user down to
<a name="aname">
Is there a method of doing this on page load, like perhaps adding a line of code to the body tag or something?
I'm using this in conjunction with PHP, so basically if a particular variable is defined, I will be sending them to the location. I know how to do the PHP side of it, just not the html side of it without the use of the link element.
Use the animate method from jquery to get a nice smoothe effect
$("#down").click(function () {
$('html,body').animate({
scrollTop: $("#b").offset().top
});
});
Example
Update: onload
$(document).ready(function () {
$('html,body').animate({
scrollTop: $("#b").offset().top
});
});
Cheers!!
Few Assumptions :
You know/declared the ID/NAME
You are sure that a NAME/ID exist
Recommendation :
Use Id along with the name.
Make sure you have unique Id for that part of page where you want to send the user to.
Add this simple javascript before the end of </body> tag OR after all ids are echo
<script type="text/javascript">window.location.hash=id;</script>
Please change id to your required id. Once the page load first the div with a declared id is created and when everything is complete the javascript will try to move the page to the specific part.
If you will use scrollto then it requires far more steps and is complicated. You will need to
measure the page height
measure the location of that id
scroll to that id if possible
Hope it works for you
I have two forms in my html file. They both submitted by one button. Can I connect both forms with this button? Something like
<button form="firstFormId secondFormId"> Save </button>.
Will it make any sense?
You have multiple solutions to do that, I'd go with javascript, or even better, jQuery, if you're using it.
If you are not using jquery, with javascript you could do something like this:
Place somewhere in the page a "submit" link:
Submit
Assign to each form an unique name, let's say "myform1" and "myform2".
Then include in your page the following:
<script type="text/javascript">
function submitform(){
document.myform1.submit(); // submit form 1
document.myform2.submit(); // submit form 2
}
</script>
Instead of calling an external function, to keep things as simple as possible, after assigning the names to the forms, you could even simply place the following link:
Submit
If you are using jQuery, and I suggest this way, you could simply assign a given class to both forms, let's say "submit-me" and then add to your code:
$('.submit-me').submit()
Of all the above I would definitely suggest the last one, that relies on jQuery. It's easy to maintain, reusable (meaning that it can be applied to any form having the class submit-me, and all the job is done by jQuery.
Note that in all the examples you don't need anymore the "classic" submit button of forms.
Not tested, but I hope it'll do what required! :-)
I've recently created a website with a menu-bar to the left. My next step is to update the right side of the page with content based on what option you choose on the in the menu. I know you can use iframe but I was wondering if there is an alternative to it, like a more dynamic one!
Most of the menu options are input-forms, I've read about ajax-calls to fill a div but couldn't find a good tutorial on how to achieve it.
edit:
Here's a sketch http://imageshack.us/photo/my-images/16/smlithis.png/
Consider using JQuery. Handling Ajax requests is so much easier than using ordinary JS.
Documentation for the ajax function: http://api.jquery.com/jQuery.ajax/
Using the success callback (the function that is executed upon success) you can fill in your div:
$.ajax({
url: 'ajax/test.html',
success: function(data) {
$('.result').html(data);
alert('Load was performed.');
}
});
Instead of .result, point the selector to your main div. The .html() function fills your div with data, which is the data returned from the ajax request.
Edit: It's 2018. Use the Fetch API.
You can use jQuery
This is how your menu button will look like:
<a href='#' onclick='return fillDiv(1)'>GoTo1</a>
<script>
function fillDiv(pageNum){
$("#id_of_div_to_load_to").load("some_page.php",{ 'pahe_num': pageNum } );
return false;
}
</script>
It is just one of many ways to do it.
Ajax can get data from a server but it cannot fill anything. Ajax is just javascript used to communicate with the server. Javascript can take that data and insert data and create elements to fill that div.
You mean something like this:
How to update div when on select change in jquery
If you actually want to get the data dynamically from another source that would be an entire different matter.
There are many ways by which we can attach an event on an HTML element.
The first way is: HTML attribute
<div id="foo" onclick="print2()> My event is attached as HTML attribute</div>
The second way is using some library (say jQuery)
<div id="bar"> My event is attached using jQuery </div>
<script>
$("#bar").click(function() {
alert("Hi this is Bar");
}
</script>
I earlier thought that jQuery might be internally converting the event to corresponding HTML attribute but this does not happen. Check this http://jsfiddle.net/blunderboy/wp4RU/3/
I am logging all the attributes of foo and bar and see bar does not have onclick attribute.
Please explain.
There is nothing called HTML Event! The two types of events you have described are, inline events and unobtrusive events, and both are javascript events.
Inline Events
When you declare javascript code on the elements itself, then it becomes an inline event. You have a few common events (as attributes to HTML Elements) like onclick, onkeydown, onkeypress, onkeyup, and all of them start with on. One such example is:
Click Me!
Unobtrusive Events
We need to assign something to be performed when the event is triggered. The = symbol is always used in JavaScript to assign the value on the right to the method or property on the left.
The window is not the only object we can attach events to. We can attach events to any object within the web page provided that we have a way of uniquely identifying that object. One way of identifying an object is by giving it an ID and referencing it by document.getElementById("id_of_the_element").
Lets take the same example.
Click Me!
Instead of the onclick attribute, I have an ID in the same place, which uniquely identifies the HTML element <a>. Now I can get the ID inside javascript this way:
document.getElementById('clickme');
For this, I can attach an event handler, which doesn't differ much from the way we use the attributes. It just doesn't have the on in the front. In our previous example, we used onclick, but now we are just going to use click.
document.getElementById('clickme').click = functionName;
Here, the functionName refers to any javascript's function name, or an anonymous function. So, for the alert, if we create a function named alertme(), we can define this way:
function alertme()
{
alert('You clicked me!');
}
Now to attach the function to the element can be done this way:
document.getElementById('clickme').click = alertme;
Still feeling lazy, you can do it using the anonymous function way, which takes no name:
document.getElementById('clickme').click = function () {
alert('You clicked me!');
}
Hope you understood. :) Let me know for further clarification.
I have an iframe and in order to access parent element I implemented following code:
window.parent.document.getElementById('parentPrice').innerHTML
How to get the same result using jquery?
UPDATE: Or how to access iFrame parent page using jquery?
To find in the parent of the iFrame use:
$('#parentPrice', window.parent.document).html();
The second parameter for the $() wrapper is the context in which to search. This defaults to document.
how to access iFrame parent page using jquery
window.parent.document.
jQuery is a library on top of JavaScript, not a complete replacement for it. You don't have to replace every last JavaScript expression with something involving $.
If you need to find the jQuery instance in the parent document (e.g., to call an utility function provided by a plug-in) use one of these syntaxes:
window.parent.$
window.parent.jQuery
Example:
window.parent.$.modal.close();
jQuery gets attached to the window object and that's what window.parent is.
You can access elements of parent window from within an iframe by using window.parent like this:
// using jquery
window.parent.$("#element_id");
Which is the same as:
// pure javascript
window.parent.document.getElementById("element_id");
And if you have more than one nested iframes and you want to access the topmost iframe, then you can use window.top like this:
// using jquery
window.top.$("#element_id");
Which is the same as:
// pure javascript
window.top.document.getElementById("element_id");
in parent window put :
<script>
function ifDoneChildFrame(val)
{
$('#parentPrice').html(val);
}
</script>
and in iframe src file put :
<script>window.parent.ifDoneChildFrame('Your value here');</script>
yeah it works for me as well.
Note : we need to use window.parent.document
$("button", window.parent.document).click(function()
{
alert("Functionality defined by def");
});
It's working for me with little twist.
In my case I have to populate value from POPUP JS to PARENT WINDOW form.
So I have used $('#ee_id',window.opener.document).val(eeID);
Excellent!!!
Might be a little late to the game here, but I just discovered this fantastic jQuery plugin https://github.com/mkdynamic/jquery-popupwindow. It basically uses an onUnload callback event, so it basically listens out for the closing of the child window, and will perform any necessary stuff at that point. SO there's really no need to write any JS in the child window to pass back to the parent.
There are multiple ways to do these.
I) Get main parent directly.
for exa. i want to replace my child page to iframe then
var link = '<%=Page.ResolveUrl("~/Home/SubscribeReport")%>';
top.location.replace(link);
here top.location gets parent directly.
II) get parent one by one,
var element = $('.iframe:visible', window.parent.document);
here if you have more then one iframe, then specify active or visible one.
you also can do like these for getting further parents,
var masterParent = element.parent().parent().parent()
III) get parent by Identifier.
var myWindow = window.top.$("#Identifier")