SKMC.UI/SKMC.UI.DesignApp/ViewModels/MainViewModel.cs

using DryIoc;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using SKMC.UI.DesignApp.Views;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SKMC.UI.DesignApp.ViewModels
{
    public class MainViewModel : BindableBase
    {
        public IRegionManager RegionManager { get; private set; }
        public DelegateCommand<string> RequestNavigateViewCommand { get; private set; }
        public MainViewModel(IRegionManager regionManager)
        {
            RegionManager = regionManager;
            regionManager.RegisterViewWithRegion("MainViewTapRegion", "AllIconsView");
            regionManager.RegisterViewWithRegion("MainViewTapRegion", "BasicControlsView");
            RequestNavigateViewCommand = new DelegateCommand<string>(RequestNavigateView);
        }

        private void RequestNavigateView(string obj)
        {
            RegionManager.RequestNavigate("MainViewTapRegion", obj);
        }
    }
}