从一个prismWpfMVVM的例子中学到的

整个程序如下，从博客园一个作者看到的例子，但是对这个例子做了点修改。我觉得这个更符合MVVM模式。这个用到了prism框架，在项目中要引用Microsoft.Practices.Prism.dll

按照程序开发顺序记录如下步骤：

一、先设计界面，这样才知道有哪些Model。

相应的xaml代码如下：

 <Window x:Class="PrismMvvmExample.MainWindow"
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 Title="MainWindow" Height="" Width="">
 <Grid>
 <Label Content="学号" Height="" HorizontalAlignment="Left" Margin="54,23,0,0" Name="labelStudentId" VerticalAlignment="Top" />
 <TextBox Text="{Binding Student.StudentId}" IsReadOnly="True" Height="" HorizontalAlignment="Right" Margin="0,27,289,0" Name="textBoxStudentId" VerticalAlignment="Top" Width="" />
 <Label Content="姓名" Height="" HorizontalAlignment="Left" Margin="54,61,0,0" Name="labelStudentName" VerticalAlignment="Top" />
 <TextBox Text="{Binding Student.StudentName}" IsReadOnly="True" Height="" HorizontalAlignment="Left" Margin="94,65,0,0" Name="textBoxStudentName" VerticalAlignment="Top" Width="" />
 <Label Content="年龄" Height="" HorizontalAlignment="Left" Margin="54,94,0,0" Name="labelStudentAge" VerticalAlignment="Top" />
 <TextBox Text="{Binding Student.StudentAge}" IsReadOnly="True" Height="" HorizontalAlignment="Left" Margin="94,99,0,0" Name="textBoxStudentAge" VerticalAlignment="Top" Width="" />
 <Label Content="Email" Height="" HorizontalAlignment="Left" Margin="50,138,0,0" Name="labelStudentEmail" VerticalAlignment="Top" />
 <TextBox Text="{Binding Student.StudentEmail}" IsReadOnly="True" Height="" HorizontalAlignment="Left" Margin="94,141,0,0" Name="textBoxStudentEmail" VerticalAlignment="Top" Width="" />
 <Label Content="性别" Height="" HorizontalAlignment="Left" Margin="57,176,0,0" Name="labelStudentSex" VerticalAlignment="Top" />
 <TextBox Text="{Binding Student.StudentSex}" IsReadOnly="True" Height="" HorizontalAlignment="Left" Margin="94,180,0,0" Name="textBoxStudentSex" VerticalAlignment="Top" Width="" />
 <Button Command="{Binding ShowCommand}" Content="显示" Height="" HorizontalAlignment="Left" Margin="345,27,0,0" Name="buttonShow" VerticalAlignment="Top" Width="" />
 </Grid>
 </Window>

二、然后就是从UI界面抽象出Model。

StudentModel.cs:

 public class StudentModel
 {
 /// <summary>
 /// 学号
 /// </summary>
 public int StudentId
 {
 get;
 set;
 }

 /// <summary>
 /// 姓名
 /// </summary>
 public string StudentName
 {
 get;
 set;
 }

 /// <summary>
 /// 年龄
 /// </summary>
 public int StudentAge
 {
 get;
 set;
 }

 /// <summary>
 /// Email
 /// </summary>
 public string StudentEmail
 {
 get;
 set;

 }

 /// <summary>
 /// 性别
 /// </summary>
 public string StudentSex
 {
 get;
 set;
 }
 }

三、接下来就是ViewModel了。

StudentViewModel.cs:

 public class StudentViewModel:NotificationObject
 {
 public DelegateCommand ShowCommand { get; set; }

 public StudentViewModel()
 {

 ShowCommand = new DelegateCommand(new Action(ShowStudentInfo));

 }

 private StudentModel student;
 public StudentModel Student
 {
 get { return student; }
 set
 {
 student = value;
 this.RaisePropertyChanged("Student");//Student这个StudentModel类的对象改变
 }
 }

 public StudentModel StudentTemp { get; set; }
 private void LoadData()
 {
 StudentTemp = new StudentModel();
 StudentTemp.StudentId = ;
 StudentTemp.StudentName = "tina";
 StudentTemp.StudentAge = ;
 StudentTemp.StudentEmail = "aa@qq.com";
 StudentTemp.StudentSex = "大帅哥姐";
 }

 private void ShowStudentInfo()
 {
 #region --正确的方式--
 //this.Student = StudentTemp;
 this.LoadData();
 //要对象改变，那么也要用一个对象赋值给它，让他改变，即用对象改变对象
 this.Student = StudentTemp;
 #endregion

 #region --无效的方式,程序只认为改变成员，并没有改变对象--
 //Student = new StudentModel();
 //Student.StudentId = 1;
 //Student.StudentName = "tina";
 //Student.StudentAge = 20;
 //Student.StudentEmail = "aa@qq.com";
 //Student.StudentSex = "大帅哥姐";
 #endregion
 }
 }

最后就是把ViewModel和View关联起来：

MainWindow.xaml.cs: