# MvvmLight

**Repository Path**: neoj/mvvm-light

## Basic Information

- **Project Name**: MvvmLight
- **Description**: mvvm-light
- **Primary Language**: C#
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2022-10-27
- **Last Updated**: 2023-04-14

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# MvvmLight

#### 使用说明
1.引用GalaSoft.MvvmLight.dll
2.App.xaml修改
	<Application.Resources>
        		<ResourceDictionary>
            			<vm:ViewModelLocator
                		xmlns:vm="clr-namespace:TemplateWPF.ViewModel"
                		x:Key="Locator"
                		d:IsDataSource="True" />
        		</ResourceDictionary>
    	</Application.Resources>

3.添加ViewModels目录下ViewModelLocator.cs

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

	namespace TemplateWPF.ViewModel
	{
    		public class ViewModelLocator
    		{
        			public ViewModelLocator()
        			{

            				RegisterVM();

        			}

        	#region Register_VM

        	public void RegisterVM()
        	{
            		SimpleIoc.Default.Register<MainViewModel>();
	}

        	#endregion


        	/// <summary>
        	/// 反射获取ViewModelLocator的实例
        	/// </summary>
        	public static ViewModelLocator Instance => new Lazy<ViewModelLocator>(() =>
            	Application.Current.TryFindResource("Locator") as ViewModelLocator).Value;

        	/// <summary>
        	/// 删除实例并重新注册
        	/// </summary>
        	/// <typeparam name="T"></typeparam>
        
        	public static void CloseVM<T>() where T : class
        	{
            	if (SimpleIoc.Default.ContainsCreated<T>())
            		{
                	SimpleIoc.Default.Unregister<T>();
                	SimpleIoc.Default.Register<T>();
            		}
            
        	}

        	#region GetInstance_Vm
      
        	public MainViewModel Main => SimpleIoc.Default.GetInstance<MainViewModel>();

        	#endregion
   	 	}
	}



4.MainViewModel修改
  	
4.1

public class MainViewModel : ViewModelBase
	
4.2  属性通知

        	private UserInfo userNow;
        	/// <summary>
        	/// 当前用户
        	/// </summary>
        	public UserInfo UserNow
       	{
            		get
            		{
                		return userNow;
            		}
            		set
            		{
                		userNow = value;
                		RaisePropertyChanged();
            		}
        	}
	
4.3 命令

	/// <summary>
        	/// 关闭窗口
        	/// </summary>    
        	public RelayCommand ExitCmd => new RelayCommand(() =>
                {
                    UIExecute.RunAsync(() =>
                    {
                        Application.Current.Shutdown();
                    });
                });

        	#region 初始化
        	public RelayCommand<object> ViewInit => new RelayCommand<object>((o) =>
        	{
            		view = o as GlowWindow;
            		MainContent = Storage.GetData<HomeView>("homeView");           	
            		//注册更改用户方法
            		Messenger.Default.Register<string>(this, "更改用户", (o) => UserNow=Common.defaultUser); 
            		//Messenger.Default.Send<string>("传递的参数", "消息令牌"); 

        	});
        	#endregion
	

5.View目录下MainView.xaml修改

	DataContext="{Binding Main, Source={StaticResource Locator}}"