Okay, first this code is very simple. The second dropdown list is driven by the selection of the first list. It databinds twice when postback is false, and only once when postback is true.
WHY!?!?!?!? This is driving me insane.
1 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
2
3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4 <html xmlns="http://www.w3.org/1999/xhtml">
5 <head runat="server">
6 ...
Go to the complete details ...