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C# RichTextBox的Rtf属性不断变化

c# winforms

C# RichTextBox的Rtf属性不断变化,c#,winforms,richtextbox,rtf,C#,Winforms,Richtextbox,Rtf,将文件嵌入RichTextBox（例如通过粘贴）时，Rtf属性随后会不断更改。调试时，您可以在每个步骤中看到属性已更改 更改仅发生在某些行上，并且似乎是随机的（有时Rtf属性的值在100次更改后再次出现，有时在800次更改后，或介于两者之间的任何位置） 由于不会引发任何事件，并且行为和UI不会受到影响，因此这通常不是问题。但我希望得到更改的部分，因此需要在Rtf中有一个稳定的值，只要没有实际的更改 我怎样才能解决这个问题 要复制的一些代码： using System.Collections.G

将文件嵌入
RichTextBox
（例如通过粘贴）时，
Rtf
属性随后会不断更改。调试时，您可以在每个步骤中看到属性已更改

更改仅发生在某些行上，并且似乎是随机的（有时
Rtf
属性的值在100次更改后再次出现，有时在800次更改后，或介于两者之间的任何位置）

由于不会引发任何事件，并且行为和UI不会受到影响，因此这通常不是问题。但我希望得到更改的部分，因此需要在
Rtf
中有一个稳定的值，只要没有实际的更改

我怎样才能解决这个问题

要复制的一些代码：

using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms;

public class RTFForm : Form
{
    public RTFForm()
    {
        RichTextBox rtb  = new RichTextBox();
        rtb.Dock = DockStyle.Fill;
        rtb.EnableAutoDragDrop = true;
        this.Controls.Add(rtb);

        rtb.Rtf = GetRTFContentFile();

        List<string> rtfList = new List<string>();
        int changes = 0;
        while(!rtfList.Contains(rtb.Rtf))
        {
            rtfList.Add( rtb.Rtf);
            changes++;
        }
        Debug.Print("changes until repeat: " + changes);    //set a breakpoint here. It is eventually reached

        string rtf = "";
        changes = 0;
        while (rtf != rtb.Rtf)
        {
            rtf = rtb.Rtf;
            changes++;
        }
        Debug.Print("changes until staying equal:" + changes);  //set a breakpoint here. It is never reached
    }

    private string GetRTFContentFile()
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("{\\rtf1\\ansi\\ansicpg1252\\deff0\\deflang1031{\\fonttbl{\\f0\\fnil\\fcharset0 Microsoft Sans Serif;}}");
        sb.Append("\\viewkind4\\uc1\\pard\\f0\\fs20{\\object\\objemb{\\*\\objclass Package}\\objw615\\objh810{\\*\\objdata ");
        sb.Append("01050000");
        sb.Append("02000000");
        sb.Append("08000000");
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        sb.Append("00000000");
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        sb.Append("00700044006100740061005c004c006f00630061006c005c00540065006d0070005c0066006900");
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        sb.Append("fefefdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfcfdfdfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfbfcfcfb");
        sb.Append("fbfbfafbfbfafbfbd6d6d6cececebfbfbfb8b8b800000000000000000000000000000000000000");
        sb.Append("0000000000000000000000000000d6d6d6fdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfc");
        sb.Append("fdfdfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfbfbfbb2b2b2abababa9a9a9a9a9a9afafafb7b7b700");
        sb.Append("0000000000000000000000000000000000000000000000000000000000000000d6d6d6fefefefd");
        sb.Append("fdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfdfcfdfdfcfcfcfcfcfcfcfcfcfcfcfcfbfbfbc6");
        sb.Append("c6c6f5f5f5f4f4f4e3e3e3bbbbbb62626200000000000000000000000000000000000000000000");
        sb.Append("0000000000000000000000d6d6d6fefefefefefefdfefefdfdfdfdfdfdfdfdfdfcfdfdfcfcfcfc");
        sb.Append("fcfcfcfcfcfcfcfcfcfcfcfbfcfcfbfcfccececefafafaebebebc9c9c96c6c6c00000000000000");
        sb.Append("0000000000000000000000000000000000000000000000000000000000d6d6d6fffefeece9e9c4");
        sb.Append("bfbff2eff0fdfdfdece9e9c4bfbff2eff0fcfcfcece9e9c4bfbff2eff0fcfcfcfcfcfccdcdcde4");
        sb.Append("e4e4c8c8c866666600000000000000000000000000000000000000000000000000000000000000");
        sb.Append("0000000000000000d6d6d6fffefebdb8b8000000dddadafdfdfdbdb8b8000000dddadafcfdfdbd");
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        sb.Append("0000000000000000000000000000000000000000000000000000d6d6d6fffefeece9e9c4bfbff3");
        sb.Append("f0f0fdfdfdece9e9c4bfbff3f0f0fdfdfdece9e9c4bfbff3f0f0fcfcfcdcdcdcbfbfbfaeacac00");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("0000000000d6d6d6d6d6d6d6d6d6f6f3f3d6d6d6d6d6d6d6d6d6f6f3f3d6d6d6d6d6d6d6d6d6f6");
        sb.Append("f3f3d6d6d6d6d6d6ccccccc3c1c1c7c7c700000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000000000000000000000000000000000000000000000000000000000000000000000000000000");
        sb.Append("000005000000020101000000050000002e01060000000a0000002105080066696c652e74787421");
        sb.Append("0014001c000000fb021000070000000000bc02000000000102022253797374656d0000c92c6687");
        sb.Append("00000a0022008a0100000000ffffffff0caeef06040000002d010100030000000000");
        sb.Append("}}}\\par");
        sb.Append("}");

        return sb.ToString();
    }
}

使用System.Collections.Generic；
使用系统诊断；
使用系统文本；
使用System.Windows.Forms；
公共类RTF表单：表单
{
公共RTFForm（）
{
RichTextBox rtb=新的RichTextBox（）；
rtb.Dock=DockStyle.Fill；
rtb.EnableAutoDragDrop=true；
this.Controls.Add（rtb）；
rtb.Rtf=GetRTFContentFile（）；
List rtfList=新列表（）；
int变化=0；
而（！rtfList.Contains（rtb.Rtf））
{
rtfList.Add（rtb.Rtf）；
变化++；
}
Debug.Print（“更改直到重复：”+更改）；//在此处设置断点。最终到达断点
字符串rtf=“”；
变化=0；
while（rtf！=rtb.rtf）
{
rtf=rtb.rtf；
变化++；
}
Debug.Print（“更改直到保持相等：“+changes”）；//在此处设置断点。永远不会到达断点
}
私有字符串GetRTFContentFile（）
{
StringBuilder sb=新的StringBuilder（）；
sb.追加（{\\rtf1\\ansi\\ansicpg1252\\deff0\\deflang1031{\\fonttbl{\\f0\\fnil\\fcharset0 Microsoft Sans Serif；}}”）；
sb.Append（“\\viewkind4\\uc1\\pard\\f0\\fs20{\\object\\objemb{\\*\\objclass-Package}\\objw615\\objh810{\\*\\objdata”）；
某人追加（“01050000”）；
某人追加（“02000000”）；
某人追加（“08000000”）；
sb.追加（“5061636b61676500”）；
某人追加（“00000000”）；
某人追加（“00000000”）；
某人追加（“27010000”）；
sb.附加（“020066696C652E74787400433A5C557365727735C6C6C65725C446565746F705C666696C65”）；
sb.追加（“2E74787400000003002D000000433A555736572735C4C4C445527E315C417070446174615C4C”）；
sb.追加（“6F63616C5C54656D705C666696C652E747874000E0000074686897320697320612066696C652C00”）；
sb.追加（“00004303A005C00550073006500720073005C0004D04C004C00450052007E0031005C000410070”）；
sb.追加（“00700044006107400061001005C0004C006F00630061006C005C00540065006D0070005C00066006900”）；
sb.追加（“6C0065002E00074007800740008000000660069006C0065002E00074007800740020000000043003A”）；
sb.追加（“005C055007300650072073005C006D00FC006C006C00650072005C00440065007306B007400”）；
sb.追加（“6F0070005C000660069006C0065002E000740078007400”）；
某人追加（“01050000”）；
某人追加（“05000000”）；
某人追加（“0d000000”）；
sb.追加（“4d45544146494c455049435400”）；
某人追加（“a6050000”）；
某人附加（“8ff8ffff”）；
sb.追加（“7c0e0000”）；
某人追加（“0800a60571070000”）；
sb.追加（“01000900000033A07002002106000000005000000000B02000000000050000000C02350028001C”）；
sb.追加（“000000 FB02F4FF0000000000009001000001000000005365676F652055490002C0A4588D0F80A”）；
sb.追加（“84ADEF0670903787680017C76C92C6687040000002D01000050000000920000000000500000001”）；
sb.追加（“02FFFF00A5000000410BC60088002000200000000000020000000000400280000020000000”）；
sb.追加（“4000000010001000000000000010000000000000000000000000000000000000000000000000000000000000000000000000FFFF”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
sb.追加（“000000000000000000 F800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF80000”）；
某人追加（“0FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800”）；
sb.追加（“000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF800000FF8000001FF80003FF8807FF8”）；
sb.追加（“0000FFF80001FFFFFFFFFFFFFFFFFFFFFFFF210600004100B46000200020000000”）；
sb.追加（“000020000040028000002000000001001800000000000C000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
某人追加（“000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”）；
sb.追加（“00000000000000000000000000000000000D6D6F9FAFAF9FAFAF9FAFAF9F9F9F9F9F9”）；
sb.追加（“F9F9F8F9F9F8F9F9F8F9F9F8F9F9F8F8F8F7F8F7F7F8F8F7F7F6F7F7F7F7F7F6F7F7F6”）；
sb.追加（“f7f7f6f7f7fbfbfb00000000000000000000000000000000000000000000000000000000000000”）；
sb.追加（“0000D6D6F0EBE4E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0”）；
sb.追加（“D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8E0D6C8F0Ebe400000000000000000000000000000000”）；
sb.追加（“0000000000000000000000000000000000 D6D6FDFDFDFAF9FAF9FAFAF9”）；
sb.追加（“FAFAF9F9F9F9F9F9F8F9F9F8F9F9F8F9F9F8F9F8F8F7F8F7F8F7F7F7F7F6”）；
sb.追加（“F7F7FBFB000000000000000000000000000000000000000000D6”）；
sb.附加（“d6d6f0ebe4e0d6c8e0d6c8e0d6c8e0d6c8e0d6c8e0