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Request a Feature Report a Bug
In Development
Last Updated: 28 Mar 2025 14:18 by ADMIN
Scheduled for 2025 Q2 (May)
Adam
Created on: 13 Mar 2025 19:49
Category: RichTextBox
Type: Bug Report
2
RichTextBox: Text locked or not visible after spacebar in Japanese

The operating system region and language needs to be set to Japanese.

RichTextBox seems to have several issues with Japanese, but being locked from visibility or edit is the biggest one.

To recreate, start typing in Japanese, push the "right" arrow after selecting the IME option desired, then hit "spacebar." This seems to duplicate the text, then when trying to continue to type into the text field the text is no longer visible (yet the IME does display).

The native WPF RichTextBox has no issues (and also supports partial selection, etc.).

I've attached a video to show the behavior with 2025 Q1 telerik.

*note:* This is on a machine with NVIDIA graphics. I mention this as there may be some issues with RichTextBox and the hardware... When I'm in a virtual machine with a completely Japanese environment and virtual graphics driver, there is NO text visible at all when trying to type into the RichTextBox. Works fine with other controls and wpf RichTextBox.

Attached Files:
1 comment
ADMIN
Dimitar
Posted on: 18 Mar 2025 07:52

Hello Adam,

I have approved this issue since I was able to reproduce it. I have updated your Telerik points as well. 

Here are the exact steps:

  1. Change the format of the OS to Japanese
  2. Type something and press down and left
  3. Press space

I am afraid I cannot suggest a workaround for this. 

I want to apologize for the inconvenience this is causing you.

Regards,
Dimitar
Progress Telerik

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