[Breaking change]: Update Anchor Layout to support high DPI machines. #32145
Description
Description
In .NET 8.0 Preview 1, Control anchor computations changed to support high dpi devices. Detailed documentation on changes is available here: https://github.com/dotnet/winforms/blob/main/docs/design/anchor-layout-changes-in-net80.md
Version
.NET 8 Preview 1
Previous behavior
Certain applications with SystemAware or PermonitorV2 aware mode and anchored controls were facing issues with layout on high dpi devices.
New behavior
Applications with SystemAware or PermonitorV2 aware mode and anchored controls should have better layout when rendered on high dpi devices.
Type of breaking change
- Binary incompatible: Existing binaries may encounter a breaking change in behavior, such as failure to load/execute or different run-time behavior.
- Source incompatible: Source code may encounter a breaking change in behavior when targeting the new runtime/component/SDK, such as compile errors or different run-time behavior.
Reason for change
We have been improving the user experience for WinForm on high Dpi monitors. This change is enabling the developers to use anchored layout for the applications on high dpi devices.
Recommended action
If user wanted to opt-in to this new behavior, they could do so by setting System.Windows.Forms.AnchorLayoutV2 to true in runtimeconfig.json file as defined here
Feature area
Windows Forms
Affected APIs
No response