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Posting data to the server needs a form-tag.
But do I also need a button of type 'submit' when I use ajax/jquery?
Can I not just interrupt the button click and do my own ajax request?
No, and technically you don't even need a form tag if you want to serialize the POST data yourself.
If you are using Ajax then you don't technically, need a form tag or a submit button.
Having them gives you convenient, semantic elements with logical events to bind the JavaScript to.
Having them is needed for the JS to be unobtrusive (which is a best practise).
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well, I have a comment system that is updated every second with jQuery, but I want to update only if there are changes, that is, only if there are new records in the database. is there a way to do this?
Excuse my English, but I'm using google translator
You may create two function in JS. First function ask php script, which check changes, and, if data changed, run second JS function, which get data and update DOM.
Php is not may send info on loaded http page independently, without request from client side.
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How can I use #RenderPage with JavaScript or jQuery page load? I've tried this but it's not working:
$("#ActivePageContent").load('#RenderPage("/Views/Port.cshtml")');
You're confusing server-side with client-side code. #RenderPage is just going to dump the rendered HTML of your view directly into Response. You can examine the source of your page to verify. You'll have something that looks a lot like...
$("#ActivePageContent").load('<html><head><title>Some Page</title>...');
It's unclear what you're really trying to do with your jQuery load() method, but #RenderPage isn't going to get you there.
From jQuery, load() is supposed to take a URL:
$( "#result" ).load( "ajax/test.html" );
Maybe you meant to write something like this instead?
$("#ActivePageContent").load('#Url.Action("Port", "MyController")');
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I have a PHP page with Session set on that page . I want to add a form with validations which contains dropdown list(the list displays all projects assigned to employee depending on the empid retrieved from session variable).This form will be processed and the Project selected will be traced so that the employee starts his work on that project.
I want a functionality which will show that the Project has been tracked and rest of the contents should not be refreshed.Only the form should be processed and return the result (as everything has session working and the page is to be accessed only once)
These links may help.
Submit a form with Ajax and jQuery:
http://net.tutsplus.com/tutorials/javascript-ajax/submit-a-form-without-page-refresh-using-jquery/
Validate a form:
http://jqueryvalidation.org
Use jQuery Form Plugin
http://malsup.com/jquery/form/#ajaxForm
I think this will solve your purpose
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There is an option for disabling right click on the website on the computer but on the mobile I don't know which javascript code I would need.
Images have to be copied from the web server to the client system in order for the client system to display them.
There is no way to stop people from saving them.
There is an option for disabling right click on the website
Not one that can't be trivially bypassed.
There's no way to actually block an image from being copied. If it's being shown to the user, they can obtain it. The resource is already sent to them for render anyways.
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I am trying to make a button that will allow me to send a preset message to an email address. I don't want it to be a form, or an email tab that sends the message. I just want to be able to click a button, so that I can send this premade message. Is there any way that I could do that?
This may not be the exact answer you're look for, but an easy alternative would be:
Send Message
Make sure you replace spaces with %20
You can add an <a> tag with a mailto: href:
<a href="mailto:someone#somewhere.com?subject=your subject&body=your message">
Click here to email me</a>
Yeah, but you're going to need some sort of backend, like Python, .NET, Rails, or PHP. When you click the button, it would have to be either a link or a form submit button that sends a request to some backend page that handles actually sending the email.
Each backend has its own specific way of doing this. You would need to specify which language you wish to use for anyone to provide further help.
You would need to write a serverside script to send the email. Your button could fire an AJAX request to the serverside script to send the email that way.
Unfortunately there is no way to send emails strictly using HTML or javascript (with Node being the exception).