Anyone managed to get default binder to work with input file control and property of type byte array?
If I have a property on my ViewModel named Image and a file input control on my view name Image, default binder issue this error:
The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or a non-white space character among the padding characters.
Why do you need a byte[] array? The default model binder works with HttpPostedFileBase:
<% using (Html.BeginForm("upload", "home", FormMethod.Post, new { enctype = "multipart/form-data" })) { %>
<input type="file" name="file" id="file" />
<input type="submit" value="Upload" />
<% } %>
And the controller action that will handle this:
[HttpPost]
public ActionResult Upload(HttpPostedFileBase file)
{
if (file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/App_Data"), fileName);
file.SaveAs(path);
}
return RedirectToAction("Index");
}
This works also with multiple files. You simply use IEnumerable<HttpPostedFileBase> in the signature of the action method.