关于Avalonia11.3.10写入系统剪切板内容，在dde-file-manager粘贴时报未知错误的讨论 #12655

BruceStoneZhang · 2025-12-29T06:47:35Z

BruceStoneZhang
Dec 29, 2025

有没有利用C# .Net和Avalonia在UOS下使用过剪切板粘贴文件的大佬，目前已经实现从系统复制，然后在软件内粘贴，可是卡在软件复制，系统粘贴，右键菜单也有显示粘贴项，在粘贴时报错，从-到-是空的
。

查了/var/log/messages日志：

2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: url is invalid !!! url = QUrl("")
2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: create selected FileInfo failed: "" ""
2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: Shred: create dconfig failed: "config is already added"
2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: QWidget::insertAction: Attempt to insert null action
2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: QWidget::insertAction: Attempt to insert null action
2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:41 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:41 bruce-PC kwin_x11[3119]: Length 2 runs past end of data
2025-12-16 16:04:42 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:42 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:43 bruce-PC kwin_x11[3119]: Length 2 runs past end of data
2025-12-16 16:04:43 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:43 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:43 bruce-PC kwin_x11[3119]: Length 2 runs past end of data
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: url is invalid !!! url = QUrl("")
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: create selected FileInfo failed: "" ""
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: Shred: create dconfig failed: "config is already added"
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: QWidget::insertAction: Attempt to insert null action
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: QWidget::insertAction: Attempt to insert null action
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
2025-12-16 16:04:48 bruce-PC dde-desktop[3335]: Length 2 runs past end of data
然后也获取了系统剪切板的内容：

点击按钮创建一个测试文件并剪切

❌ 📋 剪贴板文件信息

操作类型: 复制

文件数量: 1

📄 some.txt

类型: 复制

路径: /home/bruce/Desktop/some.txt

大小: 395

时间: 2025-12-12 15:55:36

❌ 剪贴板Formats: text/plain, Text, TEXT, x-special/gnome-copied-files, x-dfm-copied/file-icons, Files, text/x-moz-url, TIMESTAMP

❌ 剪贴板Formats(byte[28]):

text/plain

{0x2F,0x68,0x6F,0x6D,0x65,0x2F,0x62,0x72,0x75,0x63,0x65,0x2F,0x44,0x65,0x73,0x6B,0x74,0x6F,0x70,0x2F,0x73,0x6F,0x6D,0x65,0x2E,0x74,0x78,0x74 }

❌ 剪贴板Formats(byte[28]):

text/plain

/home/bruce/Desktop/some.txt

❌ 剪贴板Formats(string):

Text

/home/bruce/Desktop/some.txt

❌ 剪贴板Formats(byte[28]):

TEXT

{0x2F,0x68,0x6F,0x6D,0x65,0x2F,0x62,0x72,0x75,0x63,0x65,0x2F,0x44,0x65,0x73,0x6B,0x74,0x6F,0x70,0x2F,0x73,0x6F,0x6D,0x65,0x2E,0x74,0x78,0x74 }

❌ 剪贴板Formats(byte[28]):

TEXT

/home/bruce/Desktop/some.txt

❌ 剪贴板Formats(byte[40]):

x-special/gnome-copied-files

{0x63,0x6F,0x70,0x79,0x0A,0x66,0x69,0x6C,0x65,0x3A,0x2F,0x2F,0x2F,0x68,0x6F,0x6D,0x65,0x2F,0x62,0x72,0x75,0x63,0x65,0x2F,0x44,0x65,0x73,0x6B,0x74,0x6F,0x70,0x2F,0x73,0x6F,0x6D,0x65,0x2E,0x74,0x78,0x74 }

❌ 剪贴板Formats(byte[40]):

x-special/gnome-copied-files

copy

file:///home/bruce/Desktop/some.txt

❌ 剪贴板Formats(byte[102]):

x-dfm-copied/file-icons

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x44,0x00,0x49,0x00,0x63,0x00,0x6F,0x00,0x6E,0x00,0x50,0x00,0x72,0x00,0x6F,0x00,0x78,0x00,0x79,0x00,0x45,0x00,0x6E,0x00,0x67,0x00,0x69,0x00,0x6E,0x00,0x65,0x00,0x00,0x00,0x14,0x00,0x74,0x00,0x65,0x00,0x78,0x00,0x74,0x00,0x2D,0x00,0x70,0x00,0x6C,0x00,0x61,0x00,0x69,0x00,0x6E,0x00,0x00,0x00,0x0A,0x00,0x62,0x00,0x6C,0x00,0x6F,0x00,0x6F,0x00,0x6D,0x00,0x00,0x00,0x14,0x00,0x74,0x00,0x65,0x00,0x78,0x00,0x74,0x00,0x2D,0x00,0x70,0x00,0x6C,0x00,0x61,0x00,0x69,0x00,0x6E }

❌ 剪贴板Formats(byte[102]):

x-dfm-copied/file-icons

❌ 剪贴板Formats(unknown):

Files

Avalonia.Platform.Storage.IStorageItem[]

❌ 剪贴板Formats(byte[74]):

text/x-moz-url

{0x66,0x00,0x69,0x00,0x6C,0x00,0x65,0x00,0x3A,0x00,0x2F,0x00,0x2F,0x00,0x2F,0x00,0x68,0x00,0x6F,0x00,0x6D,0x00,0x65,0x00,0x2F,0x00,0x62,0x00,0x72,0x00,0x75,0x00,0x63,0x00,0x65,0x00,0x2F,0x00,0x44,0x00,0x65,0x00,0x73,0x00,0x6B,0x00,0x74,0x00,0x6F,0x00,0x70,0x00,0x2F,0x00,0x73,0x00,0x6F,0x00,0x6D,0x00,0x65,0x00,0x2E,0x00,0x74,0x00,0x78,0x00,0x74,0x00,0x0D,0x00,0x0A,0x00 }

❌ 剪贴板Files:

❌

/home/bruce/Desktop/some.txt

❌ 剪贴板DataTransfer: Avalonia.X11.Clipboard.ClipboardDataTransfer

❌

剪贴板DataTransfer.Item: Avalonia.Input.Platform.PlatformDataTransferItem+SingleFormatItem

❌

剪贴板DataTransfer.Item: Avalonia.X11.Clipboard.ClipboardDataTransferItem

❌ 剪贴板DataTransfer.Formats: Platform: text/plain

❌ 剪贴板DataTransfer.Formats: Item: text/plain, Kind: Platform

❌ 剪贴板DataTransfer.Formats: Universal: Text

❌ 剪贴板DataTransfer.Formats: Item: Text, Kind: Universal

❌ 剪贴板DataTransfer.Formats: Platform: TEXT

❌ 剪贴板DataTransfer.Formats: Item: TEXT, Kind: Platform

❌ 剪贴板DataTransfer.Formats: Platform: x-special/gnome-copied-files

❌ 剪贴板DataTransfer.Formats: Item: x-special/gnome-copied-files, Kind: Platform

❌ 剪贴板DataTransfer.Formats: Platform: x-dfm-copied/file-icons

❌ 剪贴板DataTransfer.Formats: Item: x-dfm-copied/file-icons, Kind: Platform

❌ 剪贴板DataTransfer.Formats: Universal: File

❌ 剪贴板DataTransfer.Formats: Item: File, Kind: Universal

❌ 剪贴板DataTransfer.Formats: Platform: text/x-moz-url

❌ 剪贴板DataTransfer.Formats: Item: text/x-moz-url, Kind: Platform

❌ 剪贴板DataTransfer.Formats: Platform: TIMESTAMP

❌ 剪贴板DataTransfer.Formats: Item: TIMESTAMP, Kind: Platform

BruceStoneZhang · 2025-12-29T06:54:27Z

BruceStoneZhang
Dec 29, 2025
Author

ClipboardDemoNew.zip
可参考Avalonia、QT剪切板源码Demo。

复现步骤：
1、运行Avalonia项目点击创建临时文件并写入剪切板；
2、在桌面文件夹右键可见粘贴菜单，点击粘贴，报未知错误；
3、此时运行QT项目，读取剪切板内容，可见text/uri-list一项为0字节；
4、在QT项目，再次读取剪切板内容，可见能读取到text/uri-list内容；
5、关闭Avalonia应用程序，在桌面文件夹重新粘贴，粘贴文件成功；

0 replies

BLumia · 2025-12-29T07:45:17Z

BLumia
Dec 29, 2025
Maintainer

在UOS下

如果你的环境是 UOS 20 的话，建议优先考虑联系商业支持。这里是 deepin （社区版，目前主线版本是 25）相关的开发活动发生的场所，即便你的问题能在 deepin 25 发生，相关的解决方案也有可能不适用于 UOS 20。

如果确实目标环境是 deepin 25 的话，对照一下 dolphin 会正常吗？

0 replies

BruceStoneZhang · 2025-12-29T09:55:05Z

BruceStoneZhang
Dec 29, 2025
Author

感谢回复，已寻求商业支持，有找到一个C操作剪切板的Demo，因我们开发框架是Avalonia，尝试用C#重写未能成功。
我会再在deepin 25测试，再次感谢！

5 replies

BruceStoneZhang Dec 31, 2025
Author

今天在deepin v25 社区版，测试了一下，同样的情况，生成的临时文件成功复制到剪切板，不能成功在桌面文件夹粘贴。

BruceStoneZhang Dec 31, 2025
Author

AvaloniaApp20251231.zip
QTClipboardDemo20251231.zip
附件是两个源码项目，Avalonia和QT，重现步骤：
1、安装dotnet8.0sdk：（wget https://packages.microsoft.com/config/debian/13/packages-microsoft-prod.deb -O packages-microsoft-prod.deb && sudo dpkg -i packages-microsoft-prod.deb && sudo apt-get update && sudo apt-get install -y dotnet-sdk-8.0）
2、进入Avalonia项目目录运行（dotnet run）
3、在Avalonia示例软件中，点击“创建临时文件并复制到剪切板"，此时检查剪切板，可看到各项Formats已写入剪切板；
4、在桌面文件夹粘贴，失败；
5、进入QTClipboardDemo项目目录运行（./QTClipboardDemo）
6、在QT示例软件中，点击”检查剪切板“，会发现text/uri-list获取不到，为0字节，怀疑为关键问题点；
7、此时关闭Avalonia示例软件，在桌面粘贴，成功。

zccrs Dec 31, 2025
Maintainer

写入剪切板的是什么数据，文件？
有没有试过在其它软件中粘贴是否ok？

BruceStoneZhang Dec 31, 2025
Author

写入的是文件路径，在Win和Ubuntu粘贴是成功的。
主要写入的Format有text/plain, Text, TEXT, x-special/gnome-copied-files, x-dfm-copied/file-icons, Files, text/x-moz-url, TIMESTAMP。

zccrs Dec 31, 2025
Maintainer

win和ubuntu环境变化太多了。请在有问题的环境上试试 xclip-pastefile 或其它软件。

zccrs · 2025-12-31T07:47:49Z

zccrs
Dec 31, 2025
Maintainer

可以用 xclip-pastefile 试试

3 replies

BruceStoneZhang Dec 31, 2025
Author

试了下，成功的：

BruceStoneZhang Dec 31, 2025
Author

系统都是初始新安装的，所以应该不是系统用坏了：
bruce@bruce-PC:/persistent/home/bruce/Projects$ mkdir clipboard
bruce@bruce-PC:/persistent/home/bruce/Projects$ cd clipboard/
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ ls
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ mkdir doc
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ ls
doc
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ echo "A file created on ${HOSTNAME}" > file1
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ ls
doc file1
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ xclip-copyfile file1
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ ls
doc file1
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard$ cd doc/
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard/doc$ xclip-pastefile
file1
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard/doc$ ls
file1
bruce@bruce-PC:/persistent/home/bruce/Projects/clipboard/doc$ cat file1
A file created on bruce-PC

zccrs Dec 31, 2025
Maintainer

OK

Wuhan deepin Technology Co.,Ltd.

关于Avalonia11.3.10写入系统剪切板内容，在dde-file-manager粘贴时报未知错误的讨论 #12655

Uh oh!

BruceStoneZhang Dec 29, 2025

Replies: 4 comments · 8 replies

Uh oh!

BruceStoneZhang Dec 29, 2025 Author

Uh oh!

Uh oh!

BLumia Dec 29, 2025 Maintainer

Uh oh!

BruceStoneZhang Dec 29, 2025 Author

Uh oh!

BruceStoneZhang Dec 31, 2025 Author

Uh oh!

BruceStoneZhang Dec 31, 2025 Author

Uh oh!

zccrs Dec 31, 2025 Maintainer

Uh oh!

BruceStoneZhang Dec 31, 2025 Author

Uh oh!

zccrs Dec 31, 2025 Maintainer

Uh oh!

zccrs Dec 31, 2025 Maintainer

Uh oh!

BruceStoneZhang Dec 31, 2025 Author

Uh oh!

BruceStoneZhang Dec 31, 2025 Author

Uh oh!

zccrs Dec 31, 2025 Maintainer

BruceStoneZhang
Dec 29, 2025

Replies: 4 comments 8 replies

BruceStoneZhang
Dec 29, 2025
Author

BLumia
Dec 29, 2025
Maintainer

BruceStoneZhang
Dec 29, 2025
Author

BruceStoneZhang Dec 31, 2025
Author

BruceStoneZhang Dec 31, 2025
Author

zccrs Dec 31, 2025
Maintainer

BruceStoneZhang Dec 31, 2025
Author

zccrs Dec 31, 2025
Maintainer

zccrs
Dec 31, 2025
Maintainer

BruceStoneZhang Dec 31, 2025
Author

BruceStoneZhang Dec 31, 2025
Author

zccrs Dec 31, 2025
Maintainer