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At least in .NET 2.0, the TextBox control doesn’t have a property to let the TextBox automatically scroll to the bottom when it is set to multiline.
You have to write code like this:
textBox1.Text += “Test string \n”;textBox1.Update();textBox1.SelectionStart = textBox1.Text.Length;textBox1.ScrollToCaret();
OR, you can use the following code:
textBox1.AppendText(”This is a test string \n”);textBox1.SelectionStart = textBox1.Text.Length;textBox1.ScrollToCaret();

The following sample copied from Microsoft:以下例子来自于微软
// Example of BitConverter class methods.using System;
class BitConverterDemo{ public static void Main( ) { const string formatter = “{0,25}{1,30}”;
double aDoubl = 0.1111111111111111111; [...]

Marshal.Copy在对有C++代码和C#代码混合的项目中很有用，它能在非托管指针和托管数组间起到相互转换作用。
Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)
Copies data from a managed array to an unmanaged memory pointer, or from an unmanaged memory pointer to a managed array.
把数据从一个托管的数组拷贝到一个非托管的内存指针， 或从一个非托管的内存指针拷贝到一个托管的数组。
Marchal.Copy有很多形态，其四个参数有很多类型变化：
Copy(array<Byte>[]()[], Int32, IntPtr, Int32)
Copy(array<Char>[]()[], Int32, IntPtr, Int32)
Copy(array<Double>[]()[], Int32, IntPtr, Int32)
Copy(array<Int16>[]()[], Int32, IntPtr, Int32)
Copy(array<Int32>[]()[], Int32, IntPtr, Int32)
Copy(array<Int64>[]()[], Int32, IntPtr, Int32)
Copy(IntPtr, array<Byte>[]()[], Int32, Int32)
Copy(IntPtr, array<Char>[]()[], Int32, Int32)
Copy(IntPtr, array<Double>[]()[], Int32, Int32)
Copy(IntPtr, [...]

C# 中的委托和事件
PDF版浏览：
http://www.cnblogs.com/Files/JimmyZhang/Delegates-and-Events-in-CSharp.pdf

更新记录：
2007年 9月28日：事件的由来

引言
委 托 和 事件在 .Net Framework中的应用非常广泛，然而，较好地理解委托和事件对很多接触C#时间不长的人来说并不容易。它们就像是一道槛儿，过了这个槛的人，觉得真 是太容易了，而没有过去的人每次见到委托和事件就觉得心里别（biè）得慌，混身不自在。本文中，我将通过两个范例由浅入深地讲述什么是委托、为什么要使 用委托、事件的由来、委托和事件对Observer设计模式的意义、.Net Framework中的委托和事件，对它们的中间代码也做了讨论。

How to call a javascript function from ASPX.cs code behind file?
Set the Body tag in your page/master page to runat=”server” and an id=”MainBody”.
Put the script tag in your page like you normally would with any HTML file
<script src=”popup.js”  type=”text/javascript”></script>
Then in the code behind attach the onload attribute to the body tag .
protected void Page_Load(object sender, [...]