<div class="col-sm-4">
   @Html.TextBoxFor(m => m.Data, new { type = "file", @class = "upload " })
   @Html.LabelFor(m => m.Data,"Upload File...", new { type = "file", @class = "btn btn-primary" })
</div>

$(document).ready(function(){
    $("input[type='file']").change(function(){
        //Tu código ....
    });
});