// html
<% using (Html.BeginForm("MyAction", "MyController",
new { id = ViewContext.RouteData.Values["id"] },
FormMethod.Post,
new { enctype = "multipart/form-data", class="myForm" }))
{ %>
<input type="file" name="blah" />
<% } %>
// script
$container.find('.myButton').click(function() {
$container.find('.myForm').submit();
});
Before the form is submitted, I need to add some extra parameters (route values) which can only be calculated at the time of submit.
How do I do that?