Chinese Characters become messy code when pasting from MS word.

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RichTextBox
Huan jia
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Huan jia asked on 14 Jul 2021, 03:12 AM | edited on 14 Jul 2021, 05:43 AM
Chinese Characters become messy codes when pasting from MS word. But it displays properly from web pages or textboxes.
Tanya
Telerik team
commented on 16 Jul 2021, 11:08 AM

Hi Huan jia,

We have logged an issue causing similar behavior related to pasting CJK characters copied from MS Word: RichTextBox: Support import from RTF of multi-byte Unicode characters represented with multiple ANSI characters in the form \'xx. However, the behavior is related to content produced by the older versions of MS Word. Can you please check it in the description of the linked item and let us know if the behavior you are observing is the same? If not, would it be possible to share a sample document showing what is being copied so we can locally test it?

Huan jia
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commented on 19 Jul 2021, 01:35 AM

Tanya, I'm not sure if they are the same issue. I can't upload an attachment in a comment, see the thread below.

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Huan jia
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answered on 19 Jul 2021, 01:30 AM
HI,Tanya, My docx file is produced by Office 2019, and  the Sample File is compressed into Sample.zip as  an attachment.
Tanya
Telerik team
commented on 19 Jul 2021, 05:13 PM

Hi Huan jia,

Thank you for sharing the sample document. I have tested it with the latest version of RadRichTextBox and it seems like everything is working as expected. Are you using an older version? If so, I would recommend updating to the latest one so you can use the new features and bug fixes from it. 

I am attaching a picture showing the result I am getting after copy-paste operation between MS Word and RadRichTextBox.

In case you are still experiencing the issue even using the latest version, could you extract the RTF content from the clipboard and share it so I can investigate it? You can achieve that using the CommandExecuting event of RadRichTextBox:

private void RadRichTextBox_CommandExecuting(object sender, CommandExecutingEventArgs e)
{
    if (e.Command is PasteCommand)
    {
        RadDocument documentFromClipboard = ClipboardEx.GetDocument().ToDocument();

        RtfFormatProvider provider = new RtfFormatProvider();
        string rtfContent = provider.Export(documentFromClipboard);
    }
}

Huan jia
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commented on 22 Jul 2021, 01:19 AM

Hi Tanya, i have identified which setting cause the messy code, it is RtfFormatProvider. I upload my demo next thread also.

RadCompositionInitializer.Catalog = new TypeCatalog(
typeof(HtmlFormatProvider),
//typeof(RtfFormatProvider), if i uncomment this line, pasting from MSWord will display Chinese messy code
typeof(DocFormatProvider),
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Huan jia
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answered on 22 Jul 2021, 01:21 AM
Tanya, this is my demo for RtfFormatProvider causing messy code.
Tanya
Telerik team
commented on 22 Jul 2021, 12:09 PM

Hi Huan jia,

I ran the sample project and copy-pasted the content inside RadRichTextBox. However, I am still unable to observe any issue with that operation. Please, find attached a .gif demonstrating my test. Is there a step I am missing?

Huan jia
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commented on 23 Jul 2021, 01:12 AM | edited

Eh, It is quite strange.
Huan jia
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commented on 23 Jul 2021, 02:11 AM | edited

Hi, Tanya, I extracted the RTF content from the clipboard, i found they are different.
-- Messy codes RTF cotent
{\rtf1\ansi\ansicpg1252\uc1\deff0\deflang1033{\fonttbl{\f0 Verdana;}{\f1 Arial;}}{\colortbl\red0\green0\blue0 ;}{\*\defchp\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone}{\*\defpap\sl276\slmult1\ql\sa180\ltrpar}{\stylesheet{\s0\sqformat\spriority0\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\sl276\slmult1\ql\sa180\ltrpar Normal;}{\*\ts2\tsrowd\spriority59\trbrdrt\brdrnone\trbrdrb\brdrnone\trbrdrl\brdrnone\trbrdrr\brdrnone\trbrdrh\brdrnone\trbrdrv\brdrnone\trgaph0\trpaddl75\trpaddr75\trpaddt0\trpaddb0\clpadft3\clpadt0\clpadfr3\clpadr0\clpadfl3\clpadl0\clpadfb3\clpadb0\tsvertalt\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\sl276\slmult1\ql\sa180\ltrpar Table Normal;}}\nouicompat\viewkind4\paperw12240\paperh15840\margl1425\margr1425\margt1425\margb1425\deftab720\sectd\pgwsxn12240\pghsxn15840\marglsxn1425\margrsxn1425\margtsxn1425\margbsxn1425\headery720\footery720\pard\sl276\slmult1\ql\sa180\ltrpar{\ltrch\f1\fs24\i0\b0\strike0\cf0\ulc0\ulnone \u30477?\u-7065?\u-24788??\u-29558??\u-32719??\u-7445??\u-32719??\u-7445??\u31709??\u-27277??\u-7065??\u-24788??\u-29558?\u21721?\u-7065?\u29623?\u-7065?\u29623?\u-29558?\u30477?\u-7255?\u24400?}{\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\par}}

-- Propery Chinese characters RTF content
{\rtf1\ansi\ansicpg1252\uc1\deff0\deflang1033{\fonttbl{\f0 Verdana;}{\f1 \u31561?\u32447?;}}{\colortbl\red0\green0\blue0 ;}{\*\defchp\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone}{\*\defpap\sl276\slmult1\ql\sa180\ltrpar}{\stylesheet{\s0\sqformat\spriority0\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\sl276\slmult1\ql\sa180\ltrpar Normal;}{\*\ts2\tsrowd\spriority59\trbrdrt\brdrnone\trbrdrb\brdrnone\trbrdrl\brdrnone\trbrdrr\brdrnone\trbrdrh\brdrnone\trbrdrv\brdrnone\trgaph0\trpaddl75\trpaddr75\trpaddt0\trpaddb0\clpadft3\clpadt0\clpadfr3\clpadr0\clpadfl3\clpadl0\clpadfb3\clpadb0\tsvertalt\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\sl276\slmult1\ql\sa180\ltrpar Table Normal;}{\s3\spriority99\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\sl276\slmult1\ql\sb100\sa100\sbauto1\saauto1\ltrpar Normal (Web);}}\nouicompat\viewkind4\paperw12240\paperh15840\margl1425\margr1425\margt1425\margb1425\deftab720\sectd\pgwsxn12240\pghsxn15840\marglsxn1425\margrsxn1425\margtsxn1425\margbsxn1425\headery720\footery720\pard\s3\sl276\slmult1\ql\sb100\sa100\sbauto1\saauto1\ltrpar{\ltrch\f1\fs21\i0\b0\strike0\cf0\ulc0\ulnone \u25151?\u20215?\u22238?\u24402?\u32467?\u26524?\u-32486?\u21518?\u-29217?\u23458?\u23478?\u-29731?\u30475?\u30475?\u29615?\u22659?}{\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\par}\pard\sl276\slmult1\ql\sa180\ltrpar{\ltrch\f0\fs24\i0\b0\strike0\cf0\ulc0\ulnone\par}}
Tanya
Telerik team
commented on 23 Jul 2021, 10:53 AM

Hi Huan jia,

Indeed, it seems like the content is wrongly interpreted by RtfFormatProvider. Let's try to avoid passing the content to the provider and check the content it tries to import. Can you please execute the following code and let me know the result inside the rtf variable?

private void RadRichTextBox_CommandExecuting(object sender, CommandExecutingEventArgs e)
{
    if (e.Command is PasteCommand)
    {
        string rtf = Clipboard.GetData(DataFormats.Rtf).ToString();
    }
}

Also, how do you obtained the correct RTF? I have tried to reproduce the issue with it but still, the content looks correct after inserting it into RadRichTextBox.

 

Huan jia
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commented on 24 Jul 2021, 11:04 AM | edited

Hi. Tanya, this is my clipboard content, my demonstrating video is a attachment in next thread.

{\rtf1 \ansi \ansicpg936 \deff0 \stshfdbch2 \stshfloch2 \stshfhich2 \deflang2052 \deflangfe2052 {\fonttbl {\f0 \froman \fcharset0 \fprq2 {\*\panose 02020603050405020304}Times New Roman{\*\falt Times New Roman};}{\f2 \fnil \fcharset134 \fprq0 {\*\panose 02010600030101010101}\'b5\'c8\'cf\'df{\*\falt \'b5\'c8\'cf\'df};}}{\colortbl;\red0\green0\blue0;\red128\green0\blue0;\red255\green0\blue0;\red0\green128\blue0;\red128\green128\blue0;\red0\green255\blue0;\red255\green255\blue0;\red0\green0\blue128;\red128\green0\blue128;\red0\green128\blue128;\red128\green128\blue128;\red192\green192\blue192;\red0\green0\blue255;\red255\green0\blue255;\red0\green255\blue255;\red255\green255\blue255;}{\stylesheet {\qj \li0 \ri0 \nowidctlpar \aspalpha \aspnum \adjustright \lin0 \rin0 \itap0 \rtlch \fcs1 \af0 \afs22 \ltrch \fcs0 \fs21 \kerning2 \rtlch \alang1025 \ltrch \dbch \af2 \hich \af2 \loch \f2 \lang1033 \langnp1033 \langfe2052 \langfenp2052 \alang1025 \snext0 \sqformat \spriority0 Normal;}}{\*\latentstyles \lsdstimax260 \lsdlockeddef0 \lsdsemihiddendef1 \lsdunhideuseddef1 \lsdqformatdef0 \lsdprioritydef99 {\lsdlockedexcept \lsdpriority99 \lsdlocked0 Normal;\lsdpriority99 \lsdlocked0 heading 1;\lsdpriority99 \lsdlocked0 heading 2;\lsdpriority99 \lsdlocked0 heading 3;\lsdpriority99 \lsdlocked0 heading 4;\lsdpriority99 \lsdlocked0 heading 5;\lsdpriority99 \lsdlocked0 heading 6;\lsdpriority99 \lsdlocked0 heading 7;\lsdpriority99 \lsdlocked0 heading 8;\lsdpriority99 \lsdlocked0 heading 9;\lsdpriority99 \lsdlocked0 index 1;\lsdpriority99 \lsdlocked0 index 2;\lsdpriority99 \lsdlocked0 index 3;\lsdpriority99 \lsdlocked0 index 4;\lsdpriority99 \lsdlocked0 index 5;\lsdpriority99 \lsdlocked0 index 6;\lsdpriority99 \lsdlocked0 index 7;\lsdpriority99 \lsdlocked0 index 8;\lsdpriority99 \lsdlocked0 index 9;\lsdpriority99 \lsdlocked0 toc 1;\lsdpriority99 \lsdlocked0 toc 2;\lsdpriority99 \lsdlocked0 toc 3;\lsdpriority99 \lsdlocked0 toc 4;\lsdpriority99 \lsdlocked0 toc 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Huan jia
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answered on 24 Jul 2021, 11:07 AM
Tanya, my attachment shows how do i obtain the correct content.
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Tanya
Telerik team
answered on 27 Jul 2021, 03:11 PM

Hello Huan jia,

Thank you for your cooperation on that.

I have tested the provided RTF and confirmed that the issue is the same as the one I linked previously - the characters are not parsed because of a not-supported definition. For convenience, I am pasting the link to the feedback item for that functionality again: RichTextBox: Support import from RTF of multi-byte Unicode characters represented with multiple ANSI characters in the form \'xx. The RTF contains the  \fcharset134 control word, indicating that the characters are double-byte. What I can suggest in this case is to use the HtmlFormatProvider to import the pasted content. It will allow you to properly preserve the characters.

Hope this information is useful.

Regards,
Tanya
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