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  • Collection Editors
  • Data Binding
  • BinaryFormatter and .NET 9

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  1. What's new in 4.0

Known Issues

PreviousWhat's new in 4.0Next.NET Core Designer

Last updated 11 hours ago

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Collection Editors

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

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.

BinaryFormatter and .NET 9

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:

<PackageReference 
    Include="System.Runtime.Serialization.Formatters" 
    Version="9.0.0-*" />

In version 4.0.1 of Wisej.NET, we have completely eliminated the use of binary serialization. While you still require the System.Runtime.Serialization.Formatters package to open existing designer files that contain Responsive Profiles and Snap Lines, the binary serialization will not be used when saving these files.

Once you have transitioned all existing binary resources to the new format, you can safely remove the System.Runtime.Serialization.Formatters package from your project dependencies.

Databinding with the OOP Windows Forms Designer - .NET Blog.NET Blog
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