MVC - The challenge of users repeatedly clicking the Submit button

Question

MVC - The challenge of users repeatedly clicking the Submit button

In my MVC application, there are multiple pages where users submit a form by clicking a Submit button. Occasionally, users may click the button multiple times if they don't see an immediate response, causing the form to be submitted twice. To address this issue, I have implemented the following JavaScript code:

// This JavaScript code disables the Save button upon form submission to prevent accidental double posting.
$('#form').submit(function () {
    $(this).find('input[type=submit]').prop('disabled', true);

    return true;
});

While this solution effectively prevents double form submission, it poses a challenge when client-side validation errors occur. In such cases, the Submit button remains disabled even though the form was not posted, preventing users from submitting the form again. Is there a modification that can be made to detect client-side validation errors and either avoid disabling the Submit button or re-enable it accordingly?

javascript model-view-controller

Answer 1

Answer №1

In the context of jQuery Validate, one can verify the validity of a form before deactivating the submit button:

$('#form').submit(function () {
    if ($(this).valid()) {
        $(this).find('input[type=submit]').prop('disabled', true);
    }
});

Answer 2

In the context of jQuery Validate, one can verify the validity of a form before deactivating the submit button:

$('#form').submit(function () {
    if ($(this).valid()) {
        $(this).find('input[type=submit]').prop('disabled', true);
    }
});

Answer 3

Answer №2

If you're looking for a solution, consider using the following approach:

<button id="subButton" /> <!-- Avoid using type="submit" as it may cause some browsers to automatically submit the form -->

Here's the Javascript snippet:

$('#subButton').click(function (e) {
    e.preventDefault(); // Prevent the default form submission behavior of the browser
    $(this).prop('disabled', true);
    doValidation();
});

var pTimeout;
function doValidation() {
ajaxLoader.show(); // Display ajaxLoader to indicate loading status
var form = $('#registerForm');
var isPending = form.validate().pendingRequest !== 0; // Check if there are any pending remote requests (check for [Remote] attribute on model)
if (isPending) {
    if (typeof pTimeout !== "undefined") {
        clearTimeout(pTimeout);
    }
    pTimeout = setTimeout(doValidation, 200); // Re-run validation until all pending requests are resolved
}
var isValid = form.valid(); // Perform validation on the form itself (form.Valid() won't work on [Remote] attributes)
if (!isPending) {
    ajaxLoader.hide();
    if (isValid) {
        $('#registerForm').submit(); // Submit the form if no pending changes and it's valid
    }
    else {
        $('#subButton').prop('disabled', false); // Re-enable the submit button if form is not valid
    }
}};

Answer 4

If you're looking for a solution, consider using the following approach:

<button id="subButton" /> <!-- Avoid using type="submit" as it may cause some browsers to automatically submit the form -->

Here's the Javascript snippet:

$('#subButton').click(function (e) {
    e.preventDefault(); // Prevent the default form submission behavior of the browser
    $(this).prop('disabled', true);
    doValidation();
});

var pTimeout;
function doValidation() {
ajaxLoader.show(); // Display ajaxLoader to indicate loading status
var form = $('#registerForm');
var isPending = form.validate().pendingRequest !== 0; // Check if there are any pending remote requests (check for [Remote] attribute on model)
if (isPending) {
    if (typeof pTimeout !== "undefined") {
        clearTimeout(pTimeout);
    }
    pTimeout = setTimeout(doValidation, 200); // Re-run validation until all pending requests are resolved
}
var isValid = form.valid(); // Perform validation on the form itself (form.Valid() won't work on [Remote] attributes)
if (!isPending) {
    ajaxLoader.hide();
    if (isValid) {
        $('#registerForm').submit(); // Submit the form if no pending changes and it's valid
    }
    else {
        $('#subButton').prop('disabled', false); // Re-enable the submit button if form is not valid
    }
}};

Answer 5

Answer №3

Make a change in direction.

$("button[type='submit']").on("click", function (event) {
   event.preventDefault();
   $(this).prop("disabled", true);
   // check for any errors
   if (noErrors) {
      $("#form").submit();
   }
   else {
      $(this).prop("disabled", false);
   }
});

Answer 6

Make a change in direction.

$("button[type='submit']").on("click", function (event) {
   event.preventDefault();
   $(this).prop("disabled", true);
   // check for any errors
   if (noErrors) {
      $("#form").submit();
   }
   else {
      $(this).prop("disabled", false);
   }
});

MVC - The challenge of users repeatedly clicking the Submit button

Answer №1

Answer №2

Answer №3

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