c#委托如何带上参数？

Question

public Thread t1;
        delegate void DoThingCallBack();
        private void button2_Click(object sender, EventArgs e)
        {
            string name = "100";
            t1 = new Thread(new ThreadStart(c1));
            t1.Start();
        }
        private void c1()
        {
            if (webBrowser1.InvokeRequired)
            {
                DoThingCallBack cb = new DoThingCallBack(c1);
                this.Invoke(cb);
            }
            else
            {
                label1.text = "???";
            }
        }这段代码中，如何把string name的值传送到label1.text中？

Answer 1

delegate void DoThingCallBack(string str);

Answer 2

 delegate void DoThingCallBack(string xxx);

Answer 3

//给你个例子
    public partial class Form1 : Form
    {
        public delegate void MyEventHandler(string username);//与所调用的方法中的参数相同
         public event MyEventHandler myevent;
        public Form1()
        {
            InitializeComponent();            MyClass c = new MyClass();
            this.myevent +=new MyEventHandler(c.SayHello);
            myevent("xiao");
            
        }
    }
    public class MyClass
    {
        public void SayHello(string username)
        {
            MessageBox.Show("Hello," + username);
        }
    }

Answer 4

        private delegate void ShowTextInLable(string str);        private void button1_Click(object sender, EventArgs e)
        {
            Thread t = new Thread(showMethod);
            t.Start();
        }        private void showMethod()
        {
            ShowTextInLable s = new ShowTextInLable(ShowInLable);
            this.Invoke(s, new object[] { "test" });
        }        private void ShowInLable(string str)
        {
            lable1.AppendText(str);
        }

Answer 5

纠正下，后面显示应该是lable1.Text = str;
之前给人个例子是rtf的，忘改回来了。只改了前面的变量名。

Answer 6

private void button1_Click(object sender, EventArgs e)
{
    Thread th = new Thread(delegate()
        {
            int i = 100;
            while (i-- > 0)
            {
                this.Invoke(new EventHandler((s, e1) => textBox2.AppendText("a")));
            }
        });
    th.Start();
}

Answer 7

专业的new ParameterizedThreadStart(RequestData)