Why is IFormFile showing null, and how do I fix it?
问题 I am using ASP.NET 5, MVC 6 in VS 2015. I am making a web application. On my form I have: <form method="post" enctype="multipart/form-data"> <div id="uploadSection" > <label >Select files for upload</label> <input type="file" id="fileSelect" name="fileSelect" multiple /> </div> <div> <input type="submit" id="thisbutton" value="button" /> </div> </form> in my controller: [HttpPost] public async Task<IActionResult> FileForm(FileViewModel vm, IFormFile file) { if (ModelState.IsValid) { /