C#设计模式资料整理

1.Form1.cs 数据 using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; namespace Observer { /// <summary> /// 主窗体实现了接口.Subject /// </summary> public class Form1 : System.Windows.Forms.Form, Subject { private System.Windows.Forms.GroupBox groupBox1; private System.Windows.Forms.RadioButton opRed; private System.Windows.Forms.RadioButton opGreen; private System.Windows.Forms.RadioButton opBlue; private ArrayList observers; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public Form1() { InitializeComponent(); init(); } private void init() { EventHandler evh = new EventHandler (opButton_Click); opRed.Click += evh; opBlue.Click += evh; opGreen.Click += evh; observers = new ArrayList (); //创建观察者1-ListObs:将选择中颜色增加在列表框中 ListObs lobs = new ListObs (this);//复杂：进行了两次相互调用,从而可以日后调用. lobs.Show (); //创建观察者2-ColObServer:将选择中颜色显示出来 ColObserver colObs = new ColObserver (this); colObs.Show(); } //注册该类中感兴趣的数据 public void registerInterest(Observer obs ) { observers.Add (obs); } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.groupBox1 = new System.Windows.Forms.GroupBox(); this.opRed = new System.Windows.Forms.RadioButton(); this.opGreen = new System.Windows.Forms.RadioButton(); this.opBlue = new System.Windows.Forms.RadioButton(); this.groupBox1.SuspendLayout(); this.SuspendLayout(); // // groupBox1 // this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] { this.opBlue, this.opGreen, this.opRed}); this.groupBox1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); this.groupBox1.Location = new System.Drawing.Point(32, 24); this.groupBox1.Name = "groupBox1"; this.groupBox1.Size = new System.Drawing.Size(160, 144); this.groupBox1.TabIndex = 0; this.groupBox1.TabStop = false; this.groupBox1.Text = "Select colors"; // // opRed // this.opRed.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); this.opRed.ForeColor = System.Drawing.Color.Red; this.opRed.Location = new System.Drawing.Point(32, 32); this.opRed.Name = "opRed"; this.opRed.TabIndex = 0; this.opRed.Text = "Red"; // // opGreen // this.opGreen.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); this.opGreen.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(192)), ((System.Byte)(0))); this.opGreen.Location = new System.Drawing.Point(32, 64); this.opGreen.Name = "opGreen"; this.opGreen.Size = new System.Drawing.Size(96, 16); this.opGreen.TabIndex = 1; this.opGreen.Text = "Green"; // // opBlue // this.opBlue.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); this.opBlue.ForeColor = System.Drawing.Color.Blue; this.opBlue.Location = new System.Drawing.Point(32, 88); this.opBlue.Name = "opBlue"; this.opBlue.Size = new System.Drawing.Size(80, 16); this.opBlue.TabIndex = 2; this.opBlue.Text = "Blue"; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(224, 205); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.groupBox1}); this.Name = "Form1"; this.Text = "Observer demo"; this.groupBox1.ResumeLayout(false); this.ResumeLayout(false); } #endregion /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private void opButton_Click(object sender, System.EventArgs e) { RadioButton but = (RadioButton)sender; //遍历观察者集合,并调用每个观察者的方法sendNotify for(int i=0; i< observers.Count ; i++ ) { Observer obs = (Observer)observers[i]; obs.sendNotify (but.Text );//将单选的文本以消息发送 } } } } 2.Observer.cs 观察者接口 using System; namespace Observer { /// <summary> /// 观察者. /// </summary> public interface Observer { void sendNotify(string message); } } 3.Subject.cs 数据接口 using System; namespace Observer { /// <summary> /// 目标. /// </summary> public interface Subject { void registerInterest(Observer obs); } } 4.ColObserver.cs (观察者1) using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; namespace Observer { /// <summary> /// Summary description for ColObserver. /// </summary> public class ColObserver : System.Windows.Forms.Form, Observer { private System.ComponentModel.Container components = null; private Brush bBrush; private System.Windows.Forms.PictureBox pic; private Font fnt; private Hashtable colors; private string colName; //----- public ColObserver(Subject subj) { InitializeComponent(); init(subj); } //----- private void init(Subject subj) { subj.registerInterest (this); fnt = new Font("arial", 18, FontStyle.Bold); bBrush = new SolidBrush(Color.Black); pic.Paint+= new PaintEventHandler (paintHandler); colors = new Hashtable (); colors.Add("red", Color.Red ); colors.Add ("blue", Color.Blue ); colors.Add ("green", Color.Green ); colName = ""; } //----- public void sendNotify(string message) { //接收消息 colName = message; message = message.ToLower (); Color col = (Color)colors[message]; pic.BackColor = col; } //----- private void paintHandler(object sender, PaintEventArgs e) { Graphics g = e.Graphics ; g.DrawString(colName, fnt, bBrush, 20, 40); } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.pic = new System.Windows.Forms.PictureBox(); this.SuspendLayout(); // // pic // this.pic.BackColor = System.Drawing.SystemColors.ActiveCaptionText; this.pic.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; this.pic.Location = new System.Drawing.Point(24, 24); this.pic.Name = "pic"; this.pic.Size = new System.Drawing.Size(184, 152); this.pic.TabIndex = 0; this.pic.TabStop = false; // // ColObserver // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(248, 213); this.Controls.AddRange(n