SOD MVVM开源框架，“老坛泡新菜”让WinForms焕发新春

INotifyPropertyChanged

namespace System.ComponentModel
    // 摘要: 
    //     向客户端发出某一属性值已更改的通知。
    public interface INotifyPropertyChanged
        // 摘要: 
        //     在更改属性值时发生。
        event PropertyChangedEventHandler PropertyChanged;
}

public abstract class EntityBase : INotifyPropertyChanged, ICloneable, PWMIS.Common.IEntity
    /// <summary>
    /// 属性改变事件
    /// </summary>
    public event PropertyChangedEventHandler PropertyChanged;
    /// <summary>
    /// 触发属性改变事件
    /// </summary>
    /// <param name="propertyFieldName">属性改变事件对象</param>
    protected virtual void OnPropertyChanged(string propertyFieldName)
        if (this.PropertyChanged != null)
            string currPropName = EntityFieldsCache.Item(this.GetType()).GetPropertyName(propertyFieldName);
            this.PropertyChanged(this, new PropertyChangedEventArgs(currPropName));
    // 其它代码略… … 
}

this.textbox1.DataBindings.Add("Text", userEntity, "Name");

/// <summary>
/// 数据映射控件接口
/// </summary>
public interface IDataControl
    /// <summary>
    /// 与数据库数据项相关联的数据
    /// </summary>
    string LinkProperty
    /// <summary>
    /// 与数据关联的表名
    /// </summary>
    string LinkObject
    // 其它接口方法内容略… … 

public void BindDataControls(Control.ControlCollection controls)
    var dataControls = MyWinForm.GetIBControls(controls);
    foreach (IDataControl control in dataControls)
        //control.LinkObject 这里都是 "DataContext"
        object dataSource = GetInstanceByMemberName(control.LinkObject);
        if (control is TextBox)
            ((TextBox)control).DataBindings.Add("Text", dataSource, control.LinkProperty);
        if (control is Label)
            ((Label)control).DataBindings.Add("Text", dataSource, control.LinkProperty);
        if (control is ListBox)
            ((ListBox)control).DataBindings.Add("SelectedValue", dataSource, control.LinkProperty, false, DataSourceUpdateMode.OnPropertyChanged);
}

private Dictionary<object, CommandMethod> dictCommand;
public delegate void CommandMethod();
public void BindCommandControls(Control control,CommandMethod command)
    if (control is Button)
        dictCommand.Add(control, command);
        ((Button)control).Click += (sender, e) => {
            dictCommand[sender](); 
}

SubmitedUsersViewModel DataContext{get;set;}
private void Form1_Load(object sender, EventArgs e)
    base.BindDataControls(this.Controls);
    base.BindCommandControls(this.button1, DataContext.SubmitCurrentUsers);
    base.BindCommandControls(this.button2, DataContext.UpdateUser);
    base.BindCommandControls(this.button3, DataContext.RemoveUser);
}

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <connectionStrings>
    <add name ="default" connectionString ="Provider=Microsoft.ACE.OLEDB.12.0;Jet OLEDB:Engine Type=6;Data Source=testdb.accdb" providerName="Access"/>
  </connectionStrings>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="PWMIS.Core" publicKeyToken="17ba13a12b9fd814" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.5.5.1019" newVersion="5.5.5.1019" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

base.BindCommandControls(this.button1, DataContext.SubmitCurrentUsers);

base.BindDataControls(this.Controls);

public class UserModel
    private static int index = 0;
    private LocalDbContext context;
    public UserModel()
        context = new LocalDbContext();
    public List<UserEntity> GetAllUsers()
        var list= OQL.From<UserEntity>().ToList(context.CurrentDataBase);
        int max = list.Max(p => p.ID);
        index = ++max;
        return list;
    public void UpdateUser(UserEntity user)
        int count= context.Update<UserEntity>(user);
    public void AddUsers(IList<UserEntity> users)
        int count = context.AddList(users);
    public void SubmitUser(UserEntity user)
        int count = context.Add(user);
    public void RemoveUser(UserEntity user)
        int count = context.Remove(user);
    public UserEntity CreateNewUser(string userName="NoName")
        return new UserEntity()
              ID= ++index,
              Name =userName
}

public class UserEntity:EntityBase
    public UserEntity()
        TableName = "Tb_User";
        PrimaryKeys.Add("UserID");
    public int ID {
        get { return getProperty<int>("UserID"); }
        set { setProperty("UserID", value); }
    public string Name
        get { return getProperty<string>("UserName"); }
        set { setProperty("UserName", value); }

class LocalDbContext : DbContext
    public LocalDbContext()
        : base("default")
        //local 是连接字符串名字 
    protected override bool CheckAllTableExists()
        //创建用户表 
        CheckTableExists<UserEntity>();
        return true;

public class SubmitedUsersViewModel
    private UserModel model = new UserModel();
    public BindingList<UserEntity> Users { get; private set; }
    public UserEntity CurrentUser { get; private set; }
    UserEntity _selectUser;
    /// <summary>
    /// 当前选择的用户，如果设置，则会设置当前用户
    /// </summary>
    public UserEntity SelectedUser {
        get { return _selectUser; }
        set {
            _selectUser = value;
            this.CurrentUser.ID = value.ID;
            this.CurrentUser.Name = value.Name;
    int _selectedUserID;
    public int SelectedUserID
        get { return _selectedUserID; }
        set {
            _selectedUserID = value;
            var obj = this.Users.FirstOrDefault(p=>p.ID==value);
            if (obj != null)
                this.CurrentUser.ID = obj.ID;
                this.CurrentUser.Name = obj.Name;
                _selectUser = this.CurrentUser;
    public SubmitedUsersViewModel()
        var data = model.GetAllUsers();
        Users = new BindingList<UserEntity>(data);
        CurrentUser = new UserEntity();
    public void UpdateUser()
        var obj = this.Users.FirstOrDefault(p => p.ID == this.CurrentUser.ID);
        if (obj != null)
            obj.Name = this.CurrentUser.Name;
            //更新后必须调用 ResetBindings 方法，否则控件上的数据会丢失一行
            this.Users.ResetBindings();
            model.UpdateUser(obj);
    public void UpdateUser(int id,string name)
        var obj = this.Users.FirstOrDefault(p => p.ID == id);
        if (obj != null)
            obj.Name = name;
            //更新后必须调用 ResetBindings 方法，否则控件上的数据会丢失一行
            this.Users.ResetBindings();
            model.UpdateUser(obj);
    public void SubmitUsers(UserEntity user)
        //UserEntity newUser = new UserEntity();
        //newUser.ID = user.ID;
        //newUser.Name = user.Name;
        //Users.Add(newUser);
        if (!Users.Contains(user))
            Users.Add(user);
            model.SubmitUser(user);            
    public void SubmitCurrentUsers()
        UserEntity newUser = model.CreateNewUser(CurrentUser.Name);
        SubmitUsers(newUser);
        CurrentUser.ID = newUser.ID;
    public void RemoveUser()
        if (SelectedUser == null)
            return;
        var obj = this.Users.FirstOrDefault(p => p.ID == SelectedUser.ID);
        if (obj != null)
            this.Users.Remove(obj);
            //更新后必须调用 ResetBindings 方法，否则控件上的数据会丢失一行
            this.Users.ResetBindings();