public Confirm()
{
InitializeComponent();
DelProgram = new DelegateText(StudentInfoClass.GetProgram);
DelLastName = new DelegateText(StudentInfoClass.GetLastName);
DelFirstName = new DelegateText(StudentInfoClass.GetFirstName);
DelMiddleName = new DelegateText(StudentInfoClass.GetMiddleName);
DelAddress = new DelegateText(StudentInfoClass.GetAddress);
DelNumAge = new DelegateNumber(StudentInfoClass.GetAge);
DelNumContactNo = new DelegateNumber(StudentInfoClass.GetContactNo);
DelStudNo = new DelegateNumber(StudentInfoClass.GetStudentNo);
}
static void Main(string[] args)
{
//用静态方法实例化委托
//
DelegateText dtinstance = new DelegateText(new Program().Method2);
//定义一个委托对象，初始化为空，即不代表任何方法
DelegateText dtchain = null;
//使用“+”符号链接委托，链接多个委托后就成了委托链
dtchain += dtstatic;
dtchain += dtinstance;
//调用委托链
dtchain();
Console.Read();
}
public void SetInfoText(String strText)
{
//判断调用者是否位于创建者（UI的）以外的线程
if (InvokeRequired)
{
//判断垃圾回收线程中是否有基类，判断对象是否被释放
if (Disposing || IsDisposed)
{
return;
}
//在拥有控件的基础窗口句柄的线程上，用指定的参数列表执行指定委托。
DelegateText @delegate = new DelegateText(SetInfoText);
Invoke(@delegate, strText);
}
else
{
InfoText.Text = strText;
Refresh();
}
}
public IAsyncResult BeginText(int messageOrdinal, AsyncCallback callback)
{
this._delegateText = this.Text;
return this._delegateText.BeginInvoke(messageOrdinal, callback, this._delegateText);
}
