Question

C# winform 多线程异步更新UI

最好能给个例子，不要太复杂，也不要太简单。最好子线程放在单独的类中，方便以后增加其他线程模块。

Answer 1

首先在窗体上放一个button和一个picturebox
（picturebox visible为false）这个多线程的目的是点击按钮后图片正常的运行，另一线程在睡眠10秒后在执行。
private void button1_Click(object sender, EventArgs e)
{
//开启线程
System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(this.Result));
pictureBox1.Visible = true;
button1.Enabled = false;
thread.Start();
}

private void Result()
{
bool ok = this.Do();
this.BeginInvoke(new System.Threading.ThreadStart(delegate()
{
if (ok) MessageBox.Show("成功", "提示");
else MessageBox.Show("失败", "提示");
pictureBox1.Visible = false;
button1.Enabled = true;
}));
}

private bool Do()
{
System.Threading.Thread.Sleep(10000);
return true;
}

追问

大哥能给个线程类是分开的么？还有如果我要更新4个参数咋办？

追答

private void button1_Click(object sender, EventArgs e)
{
//开启线程
System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(this.Result));//设置传参线程
Student student = new Student();
student.Id = 1;
student.Name = "张三";
student.Gender = 1;
student.Birthday = DateTime.Parse("1986-12-12");
object o = student;
pictureBox1.Visible = true;
button1.Enabled = false;
thread.Start(o);
}

private void Result(object o)
{
Student stu = o as Student;
bool ok = this.Do(stu);
this.BeginInvoke(new System.Threading.ThreadStart(delegate()
{
if (ok) MessageBox.Show("成功", "提示");
else MessageBox.Show("失败", "提示");
pictureBox1.Visible = false;
button1.Enabled = true;
}));
}

private bool Do(Student stu)
{
System.Threading.Thread.Sleep(1000);
//执行你更新的方法吧
return true;
}
public class Student
{
private int id;

public int Id
{
get { return id; }
set { id = value; }
}
private string name;

public string Name
{
get { return name; }
set { name = value; }
}
private int gender;

public int Gender
{
get { return gender; }
set { gender = value; }
}
private DateTime birthday;

public DateTime Birthday
{
get { return birthday; }
set { birthday = value; }
}
}