эй, если кому-то нужно знать для дальнейшего использования .. вот как я это сделал
%using (Html.BeginForm("Calendar", "Calendar", FormMethod.Post, new { @class = "niceform" }))
{ %>
<div id="container">
Months <%=Html.DropDownList("dllMonths", new SelectList(new List<string>() { "January",
"Feburary", "March", "April", "June", "July", "August", "September", "October", "November", "December"}, ViewData["Month"]), new { onchange = "this.form.submit();", @class = "width_320" })%>
Events <%=Html.DropDownList("dllEvents", new SelectList(new List<string>() { "Camp Events",
"Weekly Events", "All Events"}, ViewData["Event"]), new { onchange = "this.form.submit();", @class = "width_320" })%>
<%=Html.SubmitImage("SearchAll", "~/imagens/imgsearch.jpg")%>
</div>