WPF---MVVM模式简单应用-优快云博客

本文介绍了一个简单的菜单管理系统，包括Model层定义的Menu实体类及其集合类Menus，View层的MenuPage.xaml页面实现，以及ViewModel层的MenuViewModel类。该系统通过双向绑定实现了菜单数据的展示与更新。

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首先Model层，建立实体Menu

 public class Menu
    {
       public int ID
       {
           get;
           set;
       }
       public string ClassName
       {
           get;
           set;
       }
       public int ParentID
       {
           get;
           set;
       }
       public int OrderID
       {
           get;
           set;
       }
    }

然后再建立Menu的集合类Menus

 public class Menus
    {
        public List<Menu> menu;
        public List<Menu> getMenu()
        {
            menu = new List<Menu>{
                new Menu{ID=1,ClassName="菜单1",ParentID=0,OrderID=1},
                new Menu{ID=2,ClassName="菜单2",ParentID=0,OrderID=2},
                new Menu{ID=3,ClassName="菜单3",ParentID=0,OrderID=3}
            };
            return menu;
        }
    }

接着View层，建立MenuPage.xaml页面

 <DataGrid AutoGenerateColumns="True"   ItemsSource="{Binding Human}" SelectedItem="{Binding GetOne,Mode=TwoWay}" HorizontalAlignment="Left"   Name="dataGrid1" >
            
        </DataGrid>
        <TextBox Text="{Binding GetOne.ID,Mode=OneWay}" Height="23" HorizontalAlignment="Left" Margin="247,149,0,0" Name="textBox1" VerticalAlignment="Top" Width="120" />
        <TextBox Text="{Binding GetOne.ClassName,Mode=OneWay}" Height="23" HorizontalAlignment="Left" Margin="247,191,0,0" Name="textBox2" VerticalAlignment="Top" Width="120" />

最后ViewModel层，建立MenuViewModel类

 public class MenuViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        public List<Menu> Human { get; set; }
        private Menu _getOne;
        public Menu GetOne
        {
            get { return _getOne; }
            set
            {
                _getOne = value;
                if (PropertyChanged != null)
                {
                    PropertyChanged(this, new PropertyChangedEventArgs("GetOne"));
                }
            }
        }
        public MenuViewModel()
        {
            Human = new Menus().getMenu();
        }　　　　
    }

完毕

转载于:https://www.cnblogs.com/baobao2010/archive/2010/09/13/1824765.html