<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> void btnSubmit_Click(Object sender, EventArgs e) { if (Page.IsValid) lblResult.Text = dropFavoriteColor.SelectedValue; } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> <title>Show Initial Value</title> </head> <body> <form id="form1" runat="server"> <div> <asp:Label id="lblFavoriteColor" Text="Favorite Color:" AssociatedControlID="dropFavoriteColor" Runat="server" /> <br /> <asp:DropDownList id="dropFavoriteColor" Runat="server"> <asp:ListItem Text="Select Color" Value="none" /> <asp:ListItem Text="Red" Value="Red" /> <asp:ListItem Text="Blue" Value="Blue" /> <asp:ListItem Text="Green" Value="Green" /> </asp:DropDownList> <asp:RequiredFieldValidator id="reqFavoriteColor" Text="(Required)" InitialValue="none" ControlToValidate="dropFavoriteColor" Runat="server" /> <asp:Button id="btnSubmit" Text="Submit" Runat="server" OnClick="btnSubmit_Click" /> <asp:Label id="lblResult" Runat="server" /> </div> </form> </body> </html>