Stylet/Samples/Stylet.Samples.DesignMode/JustIntellisenseViewModel.cs

using System;

namespace Stylet.Samples.DesignMode
{
    public class JustIntellisenseViewModel : Screen
    {
        public string TextBoxText { get; set; }

        public JustIntellisenseViewModel()
        {
            this.TextBoxText = "This text is not displayed in the View";
        }
    }
}