private void button1_Click(object sender, EventArgs e)
{
txtOutPut.Text = "0";
this.listBox1.Items.Clear();
int threadNumber = Convert.ToInt32(txtThreadNumber.Text);
for (int i = 1; i <= threadNumber; i++)
{
ThreadStart threadstart = new ThreadStart(Add);
Thread t1 = new Thread(threadstart);
t1.Name = i.ToString();
t1.Start();
}
}
public void Add()
{
DateTime beginTime = DateTime.Now;
long minValue = long.Parse(txtMinValue.Text);
long maxValue = long.Parse(txtMaxValue.Text);
int threadNumber = Convert.ToInt32(txtThreadNumber.Text);
int threadOrder = Convert.ToInt32(Thread.CurrentThread.Name);
long step = (maxValue - minValue + 1) / threadNumber;
long beginValue = minValue + step * (threadOrder - 1);
long endValue = beginValue + step;
long result = 0;
for (long i = beginValue; i < endValue; i++)
{
result += i;
}
lock (this)
{
long sum = long.Parse(txtOutPut.Text);
sum += result;
//.Text = sum.ToString();
}
DateTime endTime = DateTime.Now;
TimeSpan timespan = endTime - beginTime;
string message = "线程" + Thread.CurrentThread.Name + ":" + beginValue + "到" + endValue + ",耗时间" + timespan.TotalMilliseconds.ToString() + "毫秒";
this.listBox1.Items.Add(message);
//报错,好象2003的没有这个错误为什么
Thread.CurrentThread.Abort();
}
给你个例子
定义一个delegate
private delegate void LBAddMsg(string message);
private void addMsg(string message)
{
if (this.InvokeRequired)
{
LBAddMsg LBAM = new LBAddMsg(addMsg);
this.Invoke(LBAM , new object[] { message});
}
else
{
this.listBox1.Items.Add(message); }
}
在你的代码
this.listBox1.Items.Add(message); 的地方调用addMsg函数就可以了
具体的原因可以看看msdn
{
CheckForIllegalCrossThreadCalls = false;//可以使不同的线程访问同一个对象
InitializeComponent();
}
http://blog.csdn.net/jinjazz/archive/2007/12/10/1927126.aspx