<h3>Upload  File</h3> <form action="@Url.Action("Upload","UploadController")"  method="post" id="uploadForm" enctype="multipart/form-data">    <div class="file-box">        <input type="text" class="txt"/>          <input type="button" value="http://www.mamicode.com/Browser" class="fileInputbtn"/>         <input type="file" class="fileInput" id="uploadFile" name="uploadFile"/>        <input type="button" value="http://www.mamicode.com/Upload" class="fileInputbtn" id="btnUpload"/>          <input type="button" value="http://www.mamicode.com/Cancel" class="fileInputbtn" id="btnCancel"/>    </div></form><script type="text/javascript">    $(document).ready(function () {        $(".fileInput").change(function () {            $(".txt").val($(this).val());        });        $("#btnCancel").click(function () {            $(".txt").val("");        });        $("#btnUpload").click(function () {            var filePath = $(".txt").val();            if (filePath.length == 0) {                alert("Please upload a file.");                return;            }            var extension = filePath.split(‘.‘).pop();            if (extension != "xlsx") {                alert("Please upload a correct file(.xlsx).");                return;            }            $("input[type=‘button‘]").attr("disabled", "disabled");            $(".button_01").attr("disabled", "disabled");            $(".error").html("Uploading... please don‘t close the browser.");            $("#uploadForm").submit();        });    });</script>