CentrifugalTime/ViewModels/MenuViewModel.cs

using Prism.Commands;
using Prism.Events;
using Prism.Ioc;
using Prism.Mvvm;
using Prism.Regions;
using System;

namespace DefaultEdit.ViewModels
{
    public class MenuViewModel : BindableBase
    {
        private IContainerProvider _container;
        private IEventAggregator _eventAggregator;
        private IRegionManager _regionManager;


        private DelegateCommand<string> _OpenCameraViewCommand;
        public DelegateCommand<string> OpenCameraViewCommand =>
            _OpenCameraViewCommand ?? ( _OpenCameraViewCommand = new DelegateCommand<string>(CameraViewShow) );


        private DelegateCommand <string> _OpenVisionProViewCommand;
        public DelegateCommand<string> OpenVisionProViewCommand =>
            _OpenVisionProViewCommand ?? ( _OpenVisionProViewCommand = new DelegateCommand<string>(VisionProViewShow) );






        public MenuViewModel(IContainerProvider container, IRegionManager regionManager, IEventAggregator eventAggregator)
        {
            _container = container;
            _eventAggregator = eventAggregator;
            _regionManager = regionManager;
        }





        void CameraViewShow(string index)
        {

            NavigationParameters paras = new NavigationParameters();
            paras.Add("Index", Convert.ToInt32(index)); //键值对
            _regionManager.Regions[ "MenuRegionContent" ].RequestNavigate("CameraView", paras);
        }
        void VisionProViewShow(string index)
        {
            NavigationParameters paras = new NavigationParameters();
            paras.Add("Index", Convert.ToInt32(index)); //键值对
            _regionManager.Regions[ "MenuRegionContent" ].RequestNavigate("VisionProView", paras);
        }



    }
}