Question

<% using (Html.BeginForm() { %>    <%=Html.DropDownList('TopItemsList', ViewData['ListData'], new { onchange='[???]' })%>  <% } %> 

In the above example, what value should you set onchange to? Or, how do you get the correct form?

Is there any difference with Ajax.BeginFrom?

Answer 1

try this:

<%=Html.DropDownList('TopItemsList', ViewData['ListData'], new { onchange='this.form.submit();' })%> 

Every form element in the has a ‘form’ property that is pointed to the form that contains this element.

Yes, using ‘Html.’ and ‘Ajax.’ has a difference. Ajax. means that partial page update will be used and the whole page will not be reloaded.