Binding an Item's height and width to another item's height and Width in XAML causes exceptions and unexpected behaviors
- Dominant language
- C#
- Stars
- 23.3k
- Forks
- 2k
- Avg merge
- 1d 14h
- Merged PRs (30d)
- 296
Description
### Description
Every time I try binding a view's height or width to another view's height or width in XAML,
I get an exception, stating `System.InvalidOperationException: 'Width cannot be less than zero.'`
After getting this exception, I did a value converter to make the value I bind to be always greater than 0, but The value of the referenced view's sizes always keeps increasing forever.
### Steps to Reproduce
I reproduced both bugs in two pages I set here in this repository. https://github.com/DamienDoumer/MAUIBugs/tree/master/MAUIBugs/ViewSizeReferenceBug
### Version with bug
Release Candidate 1 (current)
### Last version that worked well
Unknown/Other
### Affected platforms
Android
### Affected platform versions
All
### Did you find any workaround?
_No response_
### Relevant log output
```shell
**System.InvalidOperationException:** 'Width cannot be less than zero.'
```
Contributor guide
Research direction
Start with the two-page reproduction in the MAUIBugs/ViewSizeReferenceBug repository and run it on Android. Trace the height and width bindings that produce the negative-width exception and repeated size increase; done means both behaviors no longer occur in the reproduction.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp, xml
- Domain
- frontend, mobile-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100