microsoft / microsoft/microsoft-ui-xaml

Expander header + TextBox

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bug needs-triage
Dominant language
C++
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Avg merge
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Merged PRs (30d)
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Description

### Describe the bug

I have expander and in header I have TextBox. When user writes into the textbox the expander on each space expands/hides content. Expander's template is button template and it reacts on space as Accelerator key - similarly as button does - and space is basically use the button command.

### Why is this important?

I may be doing something wrong, but I tried few ways to work it out without luck. Its not nice to expande/hide expander's content on each space.

### Steps to reproduce the bug

```






















```

Now when you write in such expander, then it expands on space.

### Actual behavior

_No response_

### Expected behavior

When focus is on TextBox, underlying Expander header doesn't process it.

### Screenshots

_No response_

### NuGet package version

2.0.1

### Windows version

Windows 10 (21H2): Build 19044

### Additional context

_No response_

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the reported Expander/TextBox interaction using the supplied XAML, then trace the Expander header's input handling and focus behavior. Done means spaces typed while the TextBox is focused no longer expand or hide the content, while ordinary Expander activation still works.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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