Custom Dictionary Not Being Applied Correctly in WPF TextBox - Red Underline Persisting on Dictionary Words

[Sekar47]

Description

I am experiencing a problem with applying a custom dictionary to a TextBox in a WPF application. Despite correctly setting the SpellCheck.CustomDictionaries property to include my .lex file, the TextBox continues to underline words from the custom dictionary with red squiggly lines, indicating them as errors.

Reproduction Steps

CustomDict.zip

1. In the attached sample, note that in a MainWindow.xaml , we've added a text in textbox which is already present in the custDictionary.
2. Run the sample and note that the word is still underlined by the red squiggly line.

[Note] : Ensure the _uri of the custDictionary.

Expected behavior

Words present in the custom dictionary should not be underlined with red squiggly lines in the TextBox.

Actual behavior

Words in the custom dictionary are still highlighted as errors.

Any insights or suggestions to resolve this issue would be greatly appreciated.

Regression?

No response

Known Workarounds

No response

Impact

No response

Configuration

OS: Windows 11
.NET Framework version: .NET Framework 4.8
Visual Studio: VS2022

Other information

No response

[miloush]

A duplicate of #9760?

[Sekar47]

Hi @miloush ,

Thank you for pointing out the connection to issue #9760 ? It seems like both myself and other users are encountering the same problem with no solution or workaround available yet.

[harshit7962]

Closing this ticket as it is a duplicate of #9760. Will keep things updated there.