I have a form with a file input that works fine with HTML form. When I submit the form, I can grab my value in the file input; but when AJAX is used, the file input field is always null.
THIS WORKS
@using (Html.BeginForm("ProcessSubmit", "Upload",
FormMethod.Post, new { id = "uploadForm", enctype = "multipart/form-data" })) {
@(Html.Telerik().Upload().Name("attachments"))
<p class="note">
Maximum combined file size: 10 MB
</p>
<div style="margin: 20px 0 0 0;">
<input type="submit" value="Send" class="t-button" />
<input type="reset" value="Reset" class="t-button" />
</div>
}
and the controller:
[HttpPost]
public ActionResult ProcessSubmit(IEnumerable<HttpPostedFileBase> attachments)
{
if (attachments != null)
{
return Content("is not null");
}
return Content("null");
}
But this does not work
@using (Ajax.BeginForm("ProcessSubmit", "Upload",
new AjaxOptions { UpdateTargetId = "mydiv" })) {
<div id="mydiv"></div>
@(Html.Telerik().Upload().Name("attachments"))
<p class="note">
Maximum combined file size: 10 MB
</p>
<div style="margin: 20px 0 0 0;">
<input type="submit" value="Send" class="t-button" />
<input type="reset" value="Reset" class="t-button" />
</div>
}
In the former, the controller always returns "is not null" while in the latter it always returns null. :(
What is up with this please?
