MaterialDesignInXAML / MaterialDesignInXAML/MaterialDesignInXamlToolkit

Problem with UI for Textbox Validation

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bug up-for-grabs
Dominant language
C#
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Description

### Bug explanation

I am using MainDemo.WPF in source code. In Fields page, at the end of page, there are 2 TextBoxes with validation. When text is empty, The red "Field is required" text appears and after that if you scroll, it doesn't stay where it should stay.
![Screenshot 2023-06-29 112022](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/assets/89255395/748bfcd8-646f-4c96-82fe-1db12eb2b0cb)
** Edit: Sorry for wrong screenshot

![Screenshot 2023-06-29 112154](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/assets/89255395/811af418-1859-4fec-9cc1-d4e9d4f87372)
![Screenshot 2023-06-29 112937](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/assets/89255395/ea2439da-f6c2-4b1c-80c3-3cc80fe4df5e)

### Version

4.9.0

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First steps

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Research direction

Reproduce the issue in MainDemo.WPF on the Fields page using the two validation TextBoxes. Enter empty text, then scroll after the red “Field is required” message appears; done means the validation message remains positioned correctly while scrolling.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
desktop
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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