winform 富文本编辑器（RicherTextBox_demo）

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace RicherTextBox
{
    public partial class FindForm : Form
    {
        int lastFound = 0;
        RichTextBox rtbInstance = null;
        public RichTextBox RtbInstance
        {
            set { rtbInstance = value; }
            get { return rtbInstance; }
        }

        public string InitialText
        {
            set { txtSearchText.Text = value; }
            get { return txtSearchText.Text; }
        }

        public FindForm（）
        {
            InitializeComponent（）;
            this.TopMost = true;
        }

        void rtbInstance_Selectionchanged（object sender

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2008-03-16 14:02  RicherTextBox\
     目录           0  2008-03-16 15:39  RicherTextBox\bin\
     文件        2080  2008-03-16 14:01  RicherTextBox\FindForm.cs
     文件        5580  2008-03-16 14:01  RicherTextBox\FindForm.Designer.cs
     文件        5814  2008-03-16 14:01  RicherTextBox\FindForm.resx
     目录           0  2008-03-16 15:38  RicherTextBox\Properties\
     文件        1507  2008-03-16 15:38  RicherTextBox\Properties\AssemblyInfo.cs
     文件        5802  2008-03-16 12:50  RicherTextBox\Properties\Resources.Designer.cs
     文件        8807  2008-03-16 12:50  RicherTextBox\Properties\Resources.resx
     文件        1241  2008-03-16 14:02  RicherTextBox\ReplaceForm.cs
     文件        3201  2008-03-16 14:02  RicherTextBox\ReplaceForm.Designer.cs
     文件        5814  2008-03-16 14:02  RicherTextBox\ReplaceForm.resx
     目录           0  2008-03-16 12:50  RicherTextBox\Resources\
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\AlignTableCellMiddleCenterHS.bmp
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\AlignTableCellMiddleLeftJustHS.bmp
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\AlignTableCellMiddleRightHS.bmp
     文件        1078  2008-03-16 12:50  RicherTextBox\Resources\FindHS.bmp
     文件        1078  2008-03-16 12:50  RicherTextBox\Resources\FindNextHS.bmp
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\IndentHS.bmp
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\InsertPictureHS.bmp
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\List_BulletsHS.bmp
     文件        1078  2008-03-16 12:29  RicherTextBox\Resources\OutdentHS.bmp
     文件         822  2008-03-16 12:29  RicherTextBox\Resources\ZoomIn.bmp
     文件         822  2008-03-16 12:29  RicherTextBox\Resources\ZoomOut.bmp
     文件       35263  2008-03-16 14:02  RicherTextBox\RicherTextBox.cs
     文件        4742  2008-03-16 13:26  RicherTextBox\RicherTextBox.csproj
     文件       26382  2008-03-16 13:57  RicherTextBox\RicherTextBox.resx
     文件       47142  2008-03-16 13:57  RicherTextBox\UserControl1.Designer.cs
     目录           0  2008-03-16 15:32  RicherTextBoxDemo\
     目录           0  2008-03-16 15:39  RicherTextBoxDemo\bin\
     文件         902  2008-03-16 15:32  RicherTextBoxDemo\MainForm.cs
............此处省略17个文件信息