Window content not respond to window size change

[wenya90]

Describe the bug

When using TitleBar Control, snap window to/from screen top, the window size changes,but the layout content in the window does not change, and no window resize message received from the window

Steps to reproduce the bug

1. Using conotrol in Window layout

<Grid>
    <TitleBar x:Name="titleBar" Title="WinUI EX Test App" IsPaneToggleButtonVisible="True" IsBackButtonVisible="True"
            IsBackButtonEnabled="True" >
        <TitleBar.IconSource>
            <ImageIconSource ImageSource="ms-appx:///Images/logo.png" />
        </TitleBar.IconSource>
        <TitleBar.RightHeader>
            <HyperlinkButton Content="WinUIEx on GitHub" NavigateUri="https://github.com/dotMorten/WinUIEx" />
        </TitleBar.RightHeader>
    </TitleBar>
</Grid>

3. in window constuctor set:

ExtendsContentIntoTitleBar = true;
SetTitleBar(titleBar);

4. drag the app window to/from the top edge of the screen

Expected behavior

the window size changes,but the layout content in the window does not change

Screenshots

snapWIN.mp4

NuGet package version

Windows App SDK 1.7.3: 1.7.250606001

Packaging type

Unpackaged

Windows version

Windows 11 version 24H2 LTSC (26100, June Update)

IDE

Visual Studio 2022

Additional context

No response

[similar-issues-ai]

We've found some similar issues:

• #5253 , similarity score: 81%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

Note: You can give me feedback by 👍 or 👎 this comment.

[wenya90]

same issue

[Balkoth]

Best advice is not to use it, because this control has gone through various iterations and never worked to be production ready.

Just search for issues with this control and you find an astounding number, all left open, all left unfixed.