How to Handle Submit and Change Events for Ajax Image Uploads?

Ajax Upload: Submit and Change Event Handling

Issue Overview:
Enhancing an existing form to utilize Ajax for image uploading, the provided code appears to be incomplete, requiring additional functionality.

Solution:

1. Implementing Form Submission with Ajax:

In the event handler for form submission, the provided code lacks important elements:

• Success and Error Functions: Ajax requires both success and error functions to handle the response from the server.
• Form Data: To send the form data, use formData = new FormData(this); and set contentType and processData to false for Ajax compatibility.

Modified Code:

$('#imageUploadForm').on('submit', (function(e) {
    e.preventDefault();
    var formData = new FormData(this);

    $.ajax({
        type: 'POST',
        url: $(this).attr('action'),
        data: formData,
        cache: false,
        contentType: false,
        processData: false,
        success: function(data) {
            console.log("success");
            console.log(data);
        },
        error: function(data) {
            console.log("error");
            console.log(data);
        }
    });
}));

2. Triggering Upload on File Selection:

To initiate the upload on file selection, use the change event on the file input:

$("#ImageBrowse").on("change", function() {
    $("#imageUploadForm").submit();
});

With these modifications, the Ajax upload functionality will work as expected.

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