HelloItQuantumReleaseVersion/HelloItQuantum/ViewLocator.cs

using Avalonia.Controls;
using Avalonia.Controls.Templates;
using HelloItQuantum.ViewModels;
using System;

namespace HelloItQuantum
{
	public class ViewLocator : IDataTemplate
	{
		public Control? Build(object? data)
		{
			if (data is null)
				return null;

			var name = data.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
			var type = Type.GetType(name);

			if (type != null)
			{
				var control = Activator.CreateInstance(type) as Control;
				if (control != null)
				{
					control.DataContext = data;
					return control;
				}
			}

			return new TextBlock { Text = "Not Found: " + name };
		}

		public bool Match(object? data)
		{
			return data is ViewModelBase;
		}
	}
}