Known Issues
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Editors, especially collection editors, present the most significant challenges when migrating to the out-of-process designer. As of now, we have integrated the following collection editors using the basic editor system that comes with the designer. However, we are planning to transition the more complex editors in an upcoming release.
DataGridView columns editor
TreeControl nodes editor
Menu items editor
Data binding and the associated editors function as expected. However, it's worth noting that Microsoft has not yet provided an implementation for the typed DataSet editor. Currently, Microsoft suggests using the new Object Data Source Binding as an alternative to accommodate this gap.
If you prefer to use .NET 9 or .NET 10 instead of .NET 8, you can do so with minimal issues. However, it's important to note that with .NET 9, Microsoft has completely removed the BinaryFormatter, as part of their ongoing initiative to improve developer security by protecting them from themselves.
Interestingly, they have reintroduced the same "unsafe" classes by offering them as a NuGet package.
This change affects all designer .resx files that contain values serialized with the BinaryFormatter. While these files are safe as internal .resx files — something even Microsoft acknowledges — they will not load properly in .NET 9 and above unless you include the following NuGet package reference in your project:
Additionally, we are actively working on removing the binary serialization of custom snap lines and responsive properties to align with the latest security practices and ensure optimal compatibility with .NET 9 and new releases.
