求解 richTextBox的问题
此时程序接收到了一句话，他要把该句话添加到richTextBox控件中，并给其中两个词“接受”、“拒绝”做成链接文本的样子，就像LinkLabel那样，单击它们，分别引发Accept（）和Decline（）两个事件。如何实现？    
              注意：链接文本是在程序运行时添加的.

------解决方案--------------------
C#
private void RichTextBox_LinkClicked(object sender, System.Windows.Forms.LinkClickedEventArgs e)
{
//点击Http链接！
System.Diagnostics.Process.Start(e.LinkText);
}
这时候，你不要直接引发链接的跳转——而是打开那个对话框，你就可以进行下一步的工作了。
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------解决方案--------------------
//richTextBox1.DetectUrls = false; // 自动识别连接关闭
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, Pack = 4)]
public class CHARFORMAT2A
{
public int cbSize;
public int dwMask;
public int dwEffects;
public int yHeight;
public int yOffset;
public int crTextColor;
public byte bCharSet;
public byte bPitchAndFamily;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x20)]
public byte[] szFaceName = new byte[0x20];
public short wWeight;
public short sSpacing;
public int crBackColor;
public int lcid;
public int dwReserved;
public short sStyle;
public short wKerning;
public byte bUnderlineType;
public byte bAnimation;
public byte bRevAuthor;
}

[DllImport( "user32.dll ", CharSet = CharSet.Auto)]
public static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam,
[In, Out, MarshalAs(UnmanagedType.LPStruct)] CHARFORMAT2A lParam);

public const int CFE_LINK = 0x20;
public const int CFM_LINK = 0x20;
public const int EM_SETCHARFORMAT = 0x444;
public const int SCF_SELECTION = 1;

public string TextToRtf(string AText)
{
string vReturn = " ";
foreach(char vChar in AText)
{
switch(vChar)
{
case '\\ ':
vReturn += @ "\\ ";
break;
case '{ ':
vReturn += @ "\{ ";
break;
case '} ':
vReturn += @ "\} ";
break;
default:
if (vChar > (char)127)
vReturn += @ "\u " + ((int)vChar).ToString() + "? ";
else vReturn += vChar;
break;
}
}
return vReturn;
}

private void button1_Click(object sender, EventArgs e)
{
string insertText = @ "床上等你 ";
string insertLink = @ "#http://www.csdn.net ";
string insertRtf = @ "{\rtf1 " +
TextToRtf(insertText) + @ "\v " + TextToRtf(insertLink) + @ "\v0} ";
int start = richTextBox1.SelectionStart;
richTextBox1.SelectedRtf = insertRtf;
richTextBox1.SelectionStart = start;
richTextBox1.SelectionLength = insertText.Length + insertLink.Length;
CHARFORMAT2A vCharFormat2a = new CHARFORMAT2A();
vCharFormat2a.cbSize = Marshal.SizeOf(typeof(CHARFORMAT2A));
vCharFormat2a.dwMask = CFM_LINK;
vCharFormat2a.dwEffects = CFE_LINK;
S