如何禁用`richtextbox`的富文本效果？我正在使用Windows Forms，C＃，.Net Framework 4.8并尝试制作一个记事本应用程序。但是富文本效果很糟糕。
示例：
![外观](https://i.stack.imgur.com/oTcPN.png)
那个语法高亮和图片。
我测试了以下代码（来自ChatGpt）
```csharp
richTextBox1.Rtf = "";

if (Clipboard.ContainsText(TextDataFormat.Rtf))
{
    richTextBox1.Rtf = Clipboard.GetText(TextDataFormat.Rtf);
}
else if (Clipboard.ContainsText(TextDataFormat.Text))
{
    richTextBox1.Text = Clipboard.GetText(TextDataFormat.Text);
}

<details>
<summary>英文:</summary>
How I can disable the rich text effect of `richtextbox`? I am using Windows Forms, C#, .Net Framework 4.8 and I am trying to make a Notepad app. And richtext effect is so bad.
Example:
![Look](https://i.stack.imgur.com/oTcPN.png)
That syntax highlighting and images.
I test these (codes from ChatGpt) 

1st code, it still can show images but not syntax highlighting. and I do not want use this. 2nd code, I did same with 1st I dont remember that outputs of code.
</details>
# 答案1
**得分**: 1
```plaintext
&quot;[RTF](https://en.wikipedia.org/wiki/Rich_Text_Format)&quot; 代表“富文本格式” - 文本加上格式（如颜色和字体）和图像。
如果你只对纯文本版本感兴趣，那就不要费心获取RTF版本，只需使用剪贴板数据的纯文本版本。
所以将那些 `if` 替换为只有
```csharp
richTextBox1.Text = Clipboard.GetText(TextDataFormat.Text);

<details>
<summary>英文:</summary>
&quot;[RTF](https://en.wikipedia.org/wiki/Rich_Text_Format)&quot; stands for &quot;Rich Text Format&quot; - text PLUS formatting (like colors and fonts) and images.
If all you are interested in is the plain text version, then don&#39;t bother getting the RFT version, just use the plain text version of the clipboard&#39;s data.
So replace those `if`s with just

That way you only get the plain-text version from the clipboard and use that to fill your richTextBox control.
</details>