Namespace can't be found from Preview in Visual Studio Mac

[luksal]

Eto Forms Preview in Visual Studio Mac is not able to load classes from the same project, without getting a compile error.

Steps to Reproduce the Problem

1. Create project using "dotnet new etoapp -sln -s -xm -m preview"
2. Create class in subnamespace
3. Import namespace and instantiate class
4. Preview Crashes and can not display the content of the form

Code that Demonstrates the Problem

using System;
using Eto.Forms;
using Eto.Drawing;
using TestApp.Model;

namespace TestApp
{
    partial class MainForm : Form
    {
        TestObj t;

        void InitializeComponent()
        {
            Title = "My Eto Form";
            ClientSize = new Size(400, 350);
            Padding = 10;

            t = new TestObj();

        }
    }
}

using System;
using Eto.Forms;
using Eto.Drawing;
using TestApp.Model;

namespace TestApp
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }
    }
}

using System;

namespace TestApp.Model
{
    public class TestObj
    {

    }
}

Specifications

• Version: 2.4.1.1 and current development build
• Platform(s): Visual Studio Mac
• Operating System(s): macOS 10.14

[cwensley]

Yes, this is a known limitation unfortunately. You need to put any custom code into the code behind (MyForm.cs vs. MyForm.eto.cs)