Data Access Tutorials : The Official Microsoft ASP.NET Site

And also :

• Create a DAL
• Create a BLL

And all sorts of samples from basics to advanced : here (in C#)

Tags: Code C# Visual Studio 2008

using System;
2: using System.Windows.Forms;
3: using System.Collections.Generic;
4: using System.Text;
5: 
6: namespace Demos.Cours232.ExoPolymorphisme
7: {
8: 
9: /// <summary>
10: /// example syntax :
11: /// <![CDATA[
12: /// AccountPlayer<SavingsAccount> savingsPlayer = new AccountPlayer<SavingsAccount>();
13: /// ]]>
14: /// </summary>
15: /// <typeparam name="TAccount">The IAccount implementor</typeparam>
16: public class AccountPlayer<TAccount> where TAccount : IAccount, new()
17: {
18: IAccount _account;
19: Timer _timer = new Timer();
20: int _timerInterval;
21: float _amountToWithdraw;
22: 
23: long _completeMillisecondsRuntime = 0;
24: 
25: public event EventHandler<EventArgs> AccountChanged;
26: 
27: 
28: /// <summary>
29: /// <see cref="AccountPlayer<TAccount>"/> constructor. 
30: /// </summary>
31: public AccountPlayer() : this(1000,10)
32: {}
33: 
34: /// <summary>
35: /// <see cref="AccountPlayer<TAccount>"/> constructor. 
36: /// </summary>
37: /// <param name="milliseconds"></param>
38: public AccountPlayer(int milliseconds) : this(milliseconds,10)
39: { }
40: 
41: 

How to use the new Rules Engine API that is burried deep down in WCF (but not tightly coupled, which means you can use it independently of WCF. 

Below is a link where you can find several samples of the rules engine ::

http://wf.netfx3.com/files/folders/rules_samples/default.aspx

And a good article with sample code and powerpoints here :: .NET 3.0 Rules Engine - Matt

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