Stylet/Samples/Stylet.Samples.HelloDialog/ShellViewModel.cs

using System;

namespace Stylet.Samples.HelloDialog
{
    public class ShellViewModel : Screen
    {
        private IWindowManager windowManager;
        private IDialogFactory dialogFactory;

        private string _nameString;
        public string NameString
        {
            get { return this._nameString; }
            set { SetAndNotify(ref _nameString, value); }
        }

        public ShellViewModel(IWindowManager windowManager, IDialogFactory dialogFactory)
        {
            this.DisplayName = "Hello Dialog";

            this.windowManager = windowManager;
            this.dialogFactory = dialogFactory;

            this.NameString = "Click the button to show the dialog";
        }

        public void ShowDialog()
        {
            var dialogVm = this.dialogFactory.CreateDialog1();
            if (this.windowManager.ShowDialog(dialogVm).GetValueOrDefault())
                this.NameString = String.Format("Your name is {0}", dialogVm.Name);
            else
                this.NameString = "Dialog cancelled";
        }
    }

    public interface IDialogFactory
    {
        Dialog1ViewModel CreateDialog1();
    }
}