.NET Core Windows Forms Designer

.NET Core Winforms Designer VSIX package: Link

After you install .NET Core Designer, Visual Studio will automatically add the controls to the Visual Studio Toolbox.

Controls .NET Core Windows Forms Designer Preview 1 support:

• Pointer
• Button
• Checkbox
• CheckedListBox
• ComboBox
• DateTimePicker
• Label
• LinkLabel
• ListBox
• ListView
• MaskedTextBox
• MonthCalendar
• NumericUpDown
• PictureBox
• ProgressBar
• RadioButton
• RichTextBox
• TextBox
• TreeView

Features not making the support cut include:

• Container 
• Resources 
• Component Tray 
• In-place editing 
• Designer Actions 
• Databinding 
• User Controls/Inherited Controls 

Creating a new .Net Core Windows Forms Application project.

then you can drag some controls from the Visual Studio Toolbox to your winform and create a simple UI as shown below.

If you get an error when rebuilding your project as shown below.

Assets file '<path>\project.assets.json' not found. Run a NuGet package restore to generate this file.

Restore nuget packages console

You can select Tools menu from your Visual Studio => NuGet Package Manager => Package Manager Console, then enter the command as shown below.

>dotnet restore

Press F5 to run your project.

Throught this post, I hope so you can use .NET Core 3.0 Winforms Designer in Visual Studio using the Microsoft Preview of .NET Core WinForms Designer.

VIDEO TUTORIAL