How To Copy From Value File Input To Dynamic Input File Value In Java Scripts?

I have a input file multiple choose file, when choosing files in input file multiple divide to the dynamic input file and submit a form to server. Use Asp.net MVC Get all file in

Solution 1:

i try to find new way

Hold on hidden input Base 64 image stream then pass to server in server convert to Image type

jQuery and JS

function readFile(input) {
    CheckFileUpload(input.files.length)
    if (input.files && input.files[0]) {
        var img, inputID = 0;
        for (var i = 0; i < input.files.length; i++) {
            var reader = new FileReader();
            reader.onload = (function (f) {
                return function (e) {
                    //<input type="file" id="file_' + inputID + '" name="file_' + inputID + '" class="d-none" value="' + f + '" style="display:none" />';
                    var fileInput = $('<input/>')
                        .attr('type', "hidden")
                        .attr('name', 'file_' + inputID + '')
                        .attr('id', 'file_' + inputID + '')
                        .attr('value', e.target.result);
                    $('#imgZone').append(fileInput);
                    inputID++;
                }

            })(input.files[i]);
            reader.readAsDataURL(input.files[i]);
        }
    }

C#

var filesRequest = Request.Form;
    string file = filesRequest["file_1"];
    byte[] bytes = Convert.FromBase64String(file); // Replace file here
    System.Drawing.Image image;
    using (MemoryStream ms = new MemoryStream(bytes))
    {
        image = System.Drawing.Image.FromStream(ms);
    }

Problem in code: Must base 64 string substring or replace data:image/jpeg;base64,