<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<script language="C#" runat="server">
private string m_SelectedColor;
public string SelectedColor { get { return m_SelectedColor; } }
void Btn_Click(Object sender, EventArgs e) {
m_SelectedColor = Color.SelectedItem.Value;
}
</script>
<body><center>
<form id="Form1" action="Default.aspx" method="post" runat="server">
Color : <asp:dropdownlist id="Color" runat="server">
<asp:listitem>white</asp:listitem>
<asp:listitem>black</asp:listitem>
</asp:dropdownlist><br/>
<asp:button id="Button1" text="Submit" OnClick="Btn_Click"
postBackUrl ="~/DisplayColor.aspx" runat="server"/><br/>
</form>
</center></body></html>