upload video on ASP.net

this my   presentation view <b>Default.aspx</b> <pre lang="xml">&lt;%@ Page Language=&quot;C#&quot; AutoEventWireup=&quot;true&quot; EnableSessionState=&quot;True&quot; CodeFile=&quot;Default.aspx.cs&quot; Inherits=&quot;_Default&quot; %&gt; &lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML 1.0 Transitional//EN&quot; &quot;http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd&quot;&gt; &lt;html xmlns=&quot;http://www.w3.org/1999/xhtml&quot;&gt; &lt;head id=&quot;Head1&quot; runat=&quot;server&quot;&gt;     &lt;title&gt;&lt;/title&gt; &lt;/head&gt; &lt;body&gt;     &lt;form id=&quot;form2&quot; runat=&quot;server&quot; method=&quot;post&quot;&gt;     &am ...