My code is straightforward enough:

    <% using(Html.BeginForm(FormMethod.Get)) %>
    <% { %>
        Search for in Screen Name and Email: <%: Html.TextBox("keyword", Request.QueryString["keyword"]) %>
        <button type=submit>Search</button>
    <% } %>

The issue I'm running into is that when I submit this form, the values are not added to the querystring. Instead, it appears that the form is submitting by a post request. When I look at the generated HTML, I have this:

    <form action="/find/AdminMember/MemberList" method="post">
        Search for in Screen Name and Email: <input id="keyword" name="keyword" type="text" value="" />
        <button type=submit>Search</button>
    </form>

Does anyone know why? This seems pretty simple and straighforward to me.