Oh thanks, but at last i recover that the main problem is the code
<%@ Page language="c#" Codebehind="Default.aspx.cs" AutoEventWireup="false" Inherits="HoangYuh._Default" %>
is missing on my Default.aspx, i think this is the main problem to make all my database read nothing and button doesn't redirect.
Goh Hoang Yuh
- C# Beginner in ASP.NET