Expander Content is now left aligned and not stretched

[Valkirie]

Was a new setting introduced lately that'd cause this ?

[NotYoojun]

Are you using the native expander control or the lately added SettingsExpander control?

There's a recent pull request that changed the styles of Expender: #305. Check if the behavior is consistent before and after this PR.

For representing settings items, we suggest you migrate to SettingsExpander if possible.

[Valkirie]

In this scenario I'm using Expander. SettingsExpander style is working just fine.

[NotYoojun]

Probably a recent PR changed this behavior. Would you mind providing a minimal reproducible example?

If so, please provide a complete and runnable project so we can look into this.

[Valkirie]

All my Expander (not SettingsExpander) are affected so you should be able to reproduce it immediately by setting one.

<Expander>
    <Expander.Content>
        <Grid HorizontalAlignment="Stretch" Background="Red">
            <TextBlock HorizontalAlignment="Right">Test</TextBlock>
        </Grid>
    </Expander.Content>
</Expander>

[NotYoojun]

After some local experiments, I saw that Expanders has been behaving the same to me:

Can you kindly provide the two version numbers (or commit hashes):

• you're currently using that caused the problem
• you used and the Expander is working correctly

[Valkirie]

Sorry, couldn't find time to look into it yet.

[NotYoojun]

Closing as OP is no longer responding to this thread. Feel free to open again.