form-submit | 易学教程

ExtJs: Form isValid() is false. But how to know why the form is invalid?

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问题 I am using an ExtJs form having a file upload field in it. On selecting a file I am calling the submit() method of the form. But before submitting I am checking if the form is valid or not using form.isValid() . Now due to some unknown reasons, I am getting form.isValid() as FALSE . But I want to know why the form validation is failing? I have kept all other fields as allowBlank: false . Is there a way to know (using a method or a config property) why the form validation is failing and what

Rails change routing of submit in form_for

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I have a model 'Article' and a model 'Ratings' nested within articles. /articles/123/ratings I want to change the routing of the f.submit in ratings/_form.html.erb now it is so, that after pressing submit, my application routs to /ratings/111 but I want to route it to /article/123 How can I change the routing in a form_for f.submit button. I have found here something like this: <% form_for :thing, :url => url_for(:action => "update", :id => @thing) do |f| %> But this do not work for my rails 3.2. Thanks for your help, :url - The URL the form is submitted to. It takes the same fields you pass

What is a good method for preventing a user from submitting a form twice?

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I have a purchase page and I don't want the user to be able to refresh the page and resubmit the form once they get to the 'order complete' page because it automatically sets them up in our system via database values and charges their card via paypal (only want these to happen ONCE)... I have seen some sites that say 'Don't hit refresh or you will get charged twice!' but that is pretty lame to leave it open to possibility, what's a good way to only allow it to be submitted once or prevent them from refreshing, etc? PS: I saw a few similar questions: PHP: Stop a Form from being accidentally

HTML form do some “action” when hit submit button

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I would like to learn about HTML forms. For example, I have 2 input text fields for first name and last name and a submit button. When the submit button is clicked, I would like the webpage to display something like: Your Name is "First Name" "Last Name". <!DOCTYPE html> <html> <body> <form> First name: <input type="text" name="firstname" /><br /> Last name: <input type="text" name="lastname" /><br /> <input type="submit" value="Submit" /> </form> </body> </html> What do I need to have here in order to have some "action" when I click that button? Edit: Ok now I figure out that I need either

AngularJS - How do I submit a form to a controller on the server?

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The cookbook form examples on the AngularJS site only save the state on the client. How do I submit to the server? Alternatively, how do I use jQuery's form.submit() on the form in the ng:click="save()" function? Edit - Found 2 ways to do this ( I also removed the HTML markup I pasted before - just refer to the advanced form cookbook example for the source) http://webpac2.rot13.org:3000/conference/Work (by Dobrica Pavlinusic) to go the AngularJS way using a resource to send the data to the server in JSON format. I had issues with that on the server side - AngularJS was sending it fine but

jQuery, prevent form submit from enter but allow form submit by button click [duplicate]

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问题 This question already has answers here : Prevent users from submitting a form by hitting Enter (30 answers) Closed 3 years ago . I have a form where in an input text box I enter a number and press ENTER and I use jQuery to append the value to a textarea. This all works fine. The problem I'm having is that if i add a submit button to submit the form, as soon as i press ENTER, it submits the form. What I want it to do is not submit the form on pressing enter but submit the form ONLY when the

Form submition with jQuery is not working correctly with IE8

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问题 jQuery $.ajax() does not seem to work correctly with IE8 but it is working with Firefox, Chrome and Safari. I am submittin the form and response back in JSON format. Here is my code: test.php: <script type="text/javascript" src="jquery-1.4.2.js"></script> <script type="text/javascript" src="jsFile.js"></script> <form action='_test.php' method='post' class='ajaxform'> <input type='text' name='txt' value='Test Text'> <input type='submit' value='submit'> </form> <div id='testDiv'></div> _test

Redirect PHP contact form to another page upon success [closed]

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How can I redirect to another page in PHP upon successful form submission? Right now I have the code that shows a Green Message under Submit button: Your message was successfully submitted! I'd like to redirect to success.php and in case of an error to resubmit.php //try to send a message if(mail(MY_EMAIL, EMAIL_SUBJECT, setMessageBody($fields_req), "From: $email")) { echo json_encode(array('message' => 'Your message was successfully submitted.')); } else { header('HTTP/1.1 500 Internal Server Error'); echo json_encode(array('message' => 'Unexpected error while attempting to send e- mail.'));

jQuery, prevent form submit from enter but allow form submit by button click [duplicate]

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This question already has an answer here: Prevent users from submitting a form by hitting Enter 30 answers I have a form where in an input text box I enter a number and press ENTER and I use jQuery to append the value to a textarea. This all works fine. The problem I'm having is that if i add a submit button to submit the form, as soon as i press ENTER, it submits the form. What I want it to do is not submit the form on pressing enter but submit the form ONLY when the submit button is clicked. I've tried using preventDefault() and return false which will stop the form submitting on pressing

Input File upload success?

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问题 I have a quite complex form that has one "file" input, such as: <input type="file" /> Is it possible to trigger some kind of "upload successful" with JS, so after user uploads the file the whole form submits itself? 回答1: You can upload your files asynchronously (if you want you may upload multiple files). So for example: <input type="file" class="js-file-upload" multiple> After creating input tag, you can listen to change event $(".js-file-upload").on("change", function(e){ var files = e