WPF MVVM 入门示例讲解

<Window x:Class=”Students.View”
xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation”
xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml”
xmlns:d=”http://schemas.microsoft.com/expression/blend/2008″
xmlns:mc=”http://schemas.openxmlformats.org/markup-compatibility/2006″
xmlns:local=”clr-namespace:Students”
mc:Ignorable=”d”
Title=”MainWindow” Height=”450″ Width=”800″>
<Grid>

<Grid.RowDefinitions>
<RowDefinition Height=”30″/>
<RowDefinition Height=”*”/>
</Grid.RowDefinitions>
<Grid x:Name =”StudetGrid” Grid.Row =”0″>
<Grid.DataContext>
<!–声明创建一个ViewModel的实例,这个声明确定了ViewModel.cs是VM,这个声明建立了View.xaml与ViemModel之间的桥梁，这个myGrid所有绑定的属性(Name,Age,Sex)都值的是ViewModel.cs类中的成员–>
<local:StudetViewModel/>
</Grid.DataContext>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
</Grid.ColumnDefinitions>

<TextBlock Text=”姓名：” Grid.Column=”0″ HorizontalAlignment=”Right”/>
<TextBlock Text=”{Binding Name}” Grid.Column=”1″/>
<TextBlock Text=”年龄：” Grid.Column=”2″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding Age}” Grid.Column=”3″ />
<TextBlock Text=”性别：” Grid.Column=”4″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding Sex}” Grid.Column=”5″/>
<Button Content=”更新” Grid.Column=”6″ Click=”BtnClick” />

</Grid>
</Grid>
</Window>

View.xaml

<Window x:Class="Students.View"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Students"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>

        <Grid.RowDefinitions>
            <RowDefinition Height="30"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid x:Name ="StudetGrid"  Grid.Row ="0">
            <Grid.DataContext>
                <!--声明创建一个ViewModel的实例,这个声明确定了ViewModel.cs是VM,这个声明建立了View.xaml与ViemModel之间的桥梁，这个myGrid所有绑定的属性(Name,Age,Sex)都值的是ViewModel.cs类中的成员-->
                <local:StudetViewModel/>
            </Grid.DataContext>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>

            <TextBlock Text="姓名：" Grid.Column="0" HorizontalAlignment="Right"/>
            <TextBlock Text="{Binding Name}" Grid.Column="1"/>
            <TextBlock Text="年龄：" Grid.Column="2" HorizontalAlignment="Right"  />
            <TextBlock Text="{Binding Age}" Grid.Column="3" />
            <TextBlock Text="性别：" Grid.Column="4" HorizontalAlignment="Right" />
            <TextBlock Text="{Binding Sex}" Grid.Column="5"/>
            <Button Content="更新" Grid.Column="6" Click="BtnClick" />

        </Grid>
    </Grid>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class View : Window
{
public static StudetViewModel viewModel;//声明一个类，但是没有实例化,把这个viewModel设为static方便其他页面文件互相访问绑定的属性
public View()
{
InitializeComponent();
viewModel = StudetGrid.DataContext as StudetViewModel;//在构造方法中实例化viewModel，这个viewModel就是View.xaml中声明的那个ViewModel实例，就是那个桥梁。
}

private void BtnClick(object sender, RoutedEventArgs e)
{
viewModel.Name = “小明”;
viewModel.Age = “15”;
viewModel.Sex = “男”;
}
}
}

View.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class View : Window
    {
        public static StudetViewModel viewModel;//声明一个类，但是没有实例化,把这个viewModel设为static方便其他页面文件互相访问绑定的属性
        public View()
        {
            InitializeComponent();
            viewModel = StudetGrid.DataContext as StudetViewModel;//在构造方法中实例化viewModel，这个viewModel就是View.xaml中声明的那个ViewModel实例，就是那个桥梁。
        }

        private void BtnClick(object sender, RoutedEventArgs e)
        {
            viewModel.Name = "小明";
            viewModel.Age = "15";
            viewModel.Sex = "男";
        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
public class StudetViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

private string name;
public String Name
{
get { return name; }
set { name = value; OnPropertyChanged(“Name”); }
}

private string age;
public String Age
{
get { return age; }
set { age = value; OnPropertyChanged(“Age”); }
}

private string sex;
public String Sex
{
get { return sex; }
set { sex = value; OnPropertyChanged(“Sex”); }
}
}
}

StudetViewModel.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
    public class StudetViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        private string name;
        public String Name
        {
            get { return name; }
            set { name = value; OnPropertyChanged("Name"); }
        }

        private string age;
        public String Age
        {
            get { return age; }
            set { age = value; OnPropertyChanged("Age"); }
        }

        private string sex;
        public String Sex
        {
            get { return sex; }
            set { sex = value; OnPropertyChanged("Sex"); }
        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
public class StudetViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

private PersonModel _studentModel = new PersonModel();//实例化Model中的类
public PersonModel StudentModel
{
get { return _studentModel; }
set { _studentModel = value; OnPropertyChanged(“StudentModel”); }
}
}
}

StudetViewModel

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
    public class StudetViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }


        private PersonModel _studentModel = new PersonModel();//实例化Model中的类
        public PersonModel StudentModel
        {
            get { return _studentModel; }
            set { _studentModel = value; OnPropertyChanged("StudentModel"); }
        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
public class PersonModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

private string name;
public String Name
{
get { return name; }
set { name = value; OnPropertyChanged(“Name”); }
}

private string age;
public String Age
{
get { return age; }
set { age = value; OnPropertyChanged(“Age”); }
}

private string sex;
public String Sex
{
get { return sex; }
set { sex = value; OnPropertyChanged(“Sex”); }
}
}
}

Students

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
    public class PersonModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        private string name;
        public String Name
        {
            get { return name; }
            set { name = value; OnPropertyChanged("Name"); }
        }

        private string age;
        public String Age
        {
            get { return age; }
            set { age = value; OnPropertyChanged("Age"); }
        }

        private string sex;
        public String Sex
        {
            get { return sex; }
            set { sex = value; OnPropertyChanged("Sex"); }
        }
    }
}

<Window x:Class=”Students.View”
xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation”
xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml”
xmlns:d=”http://schemas.microsoft.com/expression/blend/2008″
xmlns:mc=”http://schemas.openxmlformats.org/markup-compatibility/2006″
xmlns:local=”clr-namespace:Students”
mc:Ignorable=”d”
Title=”MainWindow” Height=”450″ Width=”800″>
<Grid>

<Grid.RowDefinitions>
<RowDefinition Height=”30″/>
<RowDefinition Height=”*”/>
</Grid.RowDefinitions>
<Grid x:Name =”StudetGrid” Grid.Row =”0″>
<Grid.DataContext>
<!–声明创建一个ViewModel的实例,这个声明确定了ViewModel.cs是VM,这个声明建立了View.xaml与ViemModel之间的桥梁，这个myGrid所有绑定的属性(Name,Age,Sex)都值的是ViewModel.cs类中的成员–>
<local:StudetViewModel/>
</Grid.DataContext>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
</Grid.ColumnDefinitions>

<TextBlock Text=”姓名：” Grid.Column=”0″ HorizontalAlignment=”Right”/>
<TextBlock Text=”{Binding StudentModel.Name}” Grid.Column=”1″/>
<TextBlock Text=”年龄：” Grid.Column=”2″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding StudentModel.Age}” Grid.Column=”3″ />
<TextBlock Text=”性别：” Grid.Column=”4″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding StudentModel.Sex}” Grid.Column=”5″/>
<Button Content=”更新” Grid.Column=”6″ Click=”BtnClick” />

</Grid>
</Grid>
</Window>

View

<Window x:Class="Students.View"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Students"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>

        <Grid.RowDefinitions>
            <RowDefinition Height="30"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid x:Name ="StudetGrid"  Grid.Row ="0">
            <Grid.DataContext>
                <!--声明创建一个ViewModel的实例,这个声明确定了ViewModel.cs是VM,这个声明建立了View.xaml与ViemModel之间的桥梁，这个myGrid所有绑定的属性(Name,Age,Sex)都值的是ViewModel.cs类中的成员-->
                <local:StudetViewModel/>
            </Grid.DataContext>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>

            <TextBlock Text="姓名：" Grid.Column="0" HorizontalAlignment="Right"/>
            <TextBlock Text="{Binding StudentModel.Name}" Grid.Column="1"/>
            <TextBlock Text="年龄：" Grid.Column="2" HorizontalAlignment="Right"  />
            <TextBlock Text="{Binding StudentModel.Age}" Grid.Column="3" />
            <TextBlock Text="性别：" Grid.Column="4" HorizontalAlignment="Right" />
            <TextBlock Text="{Binding StudentModel.Sex}" Grid.Column="5"/>
            <Button Content="更新" Grid.Column="6" Click="BtnClick" />

        </Grid>
    </Grid>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class View : Window
{
public static StudetViewModel viewModel;//声明一个类，但是没有实例化,把这个viewModel设为static方便其他页面文件互相访问绑定的属性
public View()
{
InitializeComponent();
viewModel = StudetGrid.DataContext as StudetViewModel;//在构造方法中实例化viewModel，这个viewModel就是View.xaml中声明的那个ViewModel实例，就是那个桥梁。
}

private void BtnClick(object sender, RoutedEventArgs e)
{
viewModel.StudentModel.Name = “小明”;
viewModel.StudentModel.Age = “15”;
viewModel.StudentModel.Sex = “男”;
}
}
}

View.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class View : Window
    {
        public static StudetViewModel viewModel;//声明一个类，但是没有实例化,把这个viewModel设为static方便其他页面文件互相访问绑定的属性
        public View()
        {
            InitializeComponent();
            viewModel = StudetGrid.DataContext as StudetViewModel;//在构造方法中实例化viewModel，这个viewModel就是View.xaml中声明的那个ViewModel实例，就是那个桥梁。
        }

        private void BtnClick(object sender, RoutedEventArgs e)
        {
            viewModel.StudentModel.Name = "小明";
            viewModel.StudentModel.Age = "15";
            viewModel.StudentModel.Sex = "男";
        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
public class TeacherViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

private PersonModel _teacherModel = new PersonModel();//实例化Model中的类
public PersonModel TeacherModel
{
get { return _teacherModel; }
set { _teacherModel = value; OnPropertyChanged(“TeacherModel”); }
}
}
}

TeacherViewModel

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
    public class TeacherViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }


        private PersonModel _teacherModel = new PersonModel();//实例化Model中的类
        public PersonModel TeacherModel
        {
            get { return _teacherModel; }
            set { _teacherModel = value; OnPropertyChanged("TeacherModel"); }
        }
    }
}

<Window x:Class=”Students.View”
xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation”
xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml”
xmlns:d=”http://schemas.microsoft.com/expression/blend/2008″
xmlns:mc=”http://schemas.openxmlformats.org/markup-compatibility/2006″
xmlns:local=”clr-namespace:Students”
mc:Ignorable=”d”
Title=”MainWindow” Height=”450″ Width=”800″>
<Grid>

<Grid.RowDefinitions>
<RowDefinition Height=”30″/>
<RowDefinition Height=”30″/>
<RowDefinition Height=”*”/>
</Grid.RowDefinitions>
<Grid x:Name =”StudetGrid” Grid.Row =”0″>
<Grid.DataContext>
<!–声明创建一个ViewModel的实例,这个声明确定了ViewModel.cs是VM,这个声明建立了View.xaml与ViemModel之间的桥梁，这个myGrid所有绑定的属性(Name,Age,Sex)都值的是ViewModel.cs类中的成员–>
<local:StudetViewModel/>
</Grid.DataContext>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
</Grid.ColumnDefinitions>

<TextBlock Text=”学生姓名：” Grid.Column=”0″ HorizontalAlignment=”Right”/>
<TextBlock Text=”{Binding StudentModel.Name}” Grid.Column=”1″/>
<TextBlock Text=”年龄：” Grid.Column=”2″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding StudentModel.Age}” Grid.Column=”3″ />
<TextBlock Text=”性别：” Grid.Column=”4″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding StudentModel.Sex}” Grid.Column=”5″/>
<Button Content=”更新” Grid.Column=”6″ Click=”BtnClick” />

</Grid>
<Grid x:Name =”TeacherGrid” Grid.Row =”1″>
<Grid.DataContext>
<!–声明创建一个ViewModel的实例,这个声明确定了ViewModel.cs是VM,这个声明建立了View.xaml与ViemModel之间的桥梁，这个myGrid所有绑定的属性(Name,Age,Sex)都值的是ViewModel.cs类中的成员–>
<local:TeacherViewModel/>
</Grid.DataContext>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
<ColumnDefinition Width=”*”/>
</Grid.ColumnDefinitions>

<TextBlock Text=”老师姓名：” Grid.Column=”0″ HorizontalAlignment=”Right”/>
<TextBlock Text=”{Binding TeacherModel.Name}” Grid.Column=”1″/>
<TextBlock Text=”年龄：” Grid.Column=”2″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding TeacherModel.Age}” Grid.Column=”3″ />
<TextBlock Text=”性别：” Grid.Column=”4″ HorizontalAlignment=”Right” />
<TextBlock Text=”{Binding TeacherModel.Sex}” Grid.Column=”5″/>
<Button Content=”更新” Grid.Column=”6″ Click=”BtnClickTeacher” />

</Grid>
</Grid>
</Window>

View.xaml

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class View : Window
{
public static StudetViewModel studentViewModel;//声明一个类，但是没有实例化,把这个viewModel设为static方便其他页面文件互相访问绑定的属性
public static TeacherViewModel teacherViewModel;
public View()
{
InitializeComponent();
studentViewModel = StudetGrid.DataContext as StudetViewModel;//在构造方法中实例化viewModel，这个viewModel就是View.xaml中声明的那个ViewModel实例，就是那个桥梁。
teacherViewModel = TeacherGrid.DataContext as TeacherViewModel;
}

private void BtnClick(object sender, RoutedEventArgs e)
{
studentViewModel.StudentModel.Name = “小明”;
studentViewModel.StudentModel.Age = “15”;
studentViewModel.StudentModel.Sex = “男”;
}

private void BtnClickTeacher(object sender, RoutedEventArgs e)
{
teacherViewModel.TeacherModel.Name = “王老师”;
teacherViewModel.TeacherModel.Age = “30”;
teacherViewModel.TeacherModel.Sex = “女”;
}
}
}

View.xaml.cs

using Prism.Commands;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
public class TeacherViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

private PersonModel _teacherModel = new PersonModel();//实例化Model中的类
public PersonModel TeacherModel
{
get { return _teacherModel; }
set { _teacherModel = value; OnPropertyChanged(“TeacherModel”); }
}

public TeacherViewModel()
{
this.CommadUpdata = new DelegateCommand(new Action(Updata));//命令属性与方法联系起来
}

private void Updata()//方法
{
this.TeacherModel.Name = “王老师”;
this.TeacherModel.Age = “30”;
this.TeacherModel.Sex = “女”;
}

public DelegateCommand CommadUpdata { get; set; }//命令属性
}
}

TeacherViewModel

using Prism.Commands;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;

namespace Students
{
    public class TeacherViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }


        private PersonModel _teacherModel = new PersonModel();//实例化Model中的类
        public PersonModel TeacherModel
        {
            get { return _teacherModel; }
            set { _teacherModel = value; OnPropertyChanged("TeacherModel"); }
        }

        public TeacherViewModel()
        {
            this.CommadUpdata = new DelegateCommand(new Action(Updata));//命令属性与方法联系起来
        }

        private void Updata()//方法
        {
            this.TeacherModel.Name = "王老师";
            this.TeacherModel.Age = "30";
            this.TeacherModel.Sex = "女";
        }

        public DelegateCommand CommadUpdata { get; set; }//命令属性
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class View : Window
{
public View()
{
InitializeComponent();
}
}
}

View.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Students
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class View : Window
    {
        public View()
        {
            InitializeComponent();
        }
    }
}