Question

我正在使用jquery ajax将excel文件上传到数据库中。问题是，在成功上传文件后，我想清除文件上传，这样如果我再次按下按钮，它就不会上传同一个文件（它当前是）我尝试了以下但没有运气。我试着把.value =“”（没有运气）。

$(document).ready(function () {
    $('#btnBankFileUpload').click(function () {
        if (window.FormData !== undefined) {
        var fileUpload = $("#fileUploadMenu").get(0);
        var files = fileUpload.files;

        // Create FormData object  
        var fileData = new FormData();

        // Looping over all files and add it to FormData object  
        for (var i = 0; i < files.length; i++) {
            fileData.append(files[i].name, files[i]);
        }


        $.ajax({
            url: '/Home/Index',
            type: "POST",
            contentType: false, // Not to set any content header  
            processData: false, // Not to process data  
            data: fileData,
            success: function (result) {
                $('#uploadMessage').text(result);
                $('#lblFilePath').text(" ");
                var fileuploadmenu = $("#fileUploadMenu");
                fileuploadmenu.innerHTML = fileuploadmenu.innerHTML;
            },
            error: function(err) {
                alert(err.statusText);
            }
        });
    }
     });
    });

Answer 1

试试这个

$("#fileUploadMenu").val(null); //Clear Uploaded File

使用jquery / javascript清除文件上载（ASP.NET MVC）

1 个答案: