formula_manage/ViewModel/ViewModelLocator.cs

using CommonServiceLocator;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.Ioc;

namespace formula_manage.ViewModel
{
    public class ViewModelLocator
    {
        public ViewModelLocator()
        {
            ServiceLocator.SetLocatorProvider(() => SimpleIoc.Default);

            ////if (ViewModelBase.IsInDesignModeStatic)
            ////{
            ////    // Create design time view services and models
            ////    SimpleIoc.Default.Register<IDataService, DesignDataService>();
            ////}
            ////else
            ////{
            ////    // Create run time view services and models
            ////    SimpleIoc.Default.Register<IDataService, DataService>();
            ////}

            SimpleIoc.Default.Register<MainWindowViewModel>();
        }
             
        public MainWindowViewModel Main
        {
            get
            {
                return ServiceLocator.Current.GetInstance<MainWindowViewModel>();
            }
        }

    
    }
}