求教一个多线程的问题

Question

本帖最后由 ydlcom 于 2010-10-18 13:41:26 编辑

Answer 1

        private void button1_Click(object sender, EventArgs e)
        {
            Thread thr = new Thread(new ParameterizedThreadStart(TestRun));
            thr.IsBackground = true;
            object o = 1;
            //object o = new object[] { "a", 1 };//多参
            thr.Start(o);
        }
        private void TestRun(object o)
        {
            int i = (int)o;
            //object[] os = (object[])o;
            //string str = os[0].ToString();
            //int i = (int)os[1];
        }

Answer 2

        private void fun(object index)
        {
            while (true)
            {
                string txt = System.DateTime.Now.ToString() + "    执行第 " + index.ToString() + " 个线程";
                if (listBox1.InvokeRequired)
                {
                    MyDelegateUI d = delegate
                    {
                        listBox1.Items.Insert(0, txt);
                    };
                    listBox1.Invoke(d);
                }
                else
                {
                    listBox1.Items.Insert(0, txt);
                }                System.Threading.Thread.Sleep(100);
            }
        }        private void button1_Click(object sender, EventArgs e)
        {
            Thread[] t = new Thread[10];
            for (int i = 0; i < 10; i++)
            {
                t[i] = new Thread(new ParameterizedThreadStart(fun));
                t[i].Start(i);
            }
        }

Answer 3

这个看得懂，但你看一下，我这个怎么弄呢 #region [方法]【得到表格数据】
public void getData(out DataTable dt, out SqlDataAdapter da, out SqlCommandBuilder sb, out BindingSource bs, ToolStripStatusLabel st1,  string sqlcmd,  BindingNavigator bindNager)
        {   SqlConnection conn = null;
            string connect =Maticsoft.DBUtility.DbHelperSQL.connectionString;
            da = null;
            da = null;
            sb = null;
            bs = null;
            try
            {
                conn = new SqlConnection(connect);
                if (conn.State == ConnectionState.Closed)
                {
                    conn.Open();
                }                dt = new DataTable();
                da = new SqlDataAdapter(sqlcmd, conn);
                sb = new SqlCommandBuilder(da);
                da.Fill(dt);
                Grid.DataSource = bs;
                bs = new BindingSource();
                bs.DataSource = dt; 
               grid.DataSource = bs;//这里要操作控件
            }
            catch (Exception ex )
            {
                MessageBox.Show(ex.ToString ());
             }
            finally
            {
                  conn.Close();
            }
        }
        #endregion

Answer 4

grid.DataSource = bs;//这里要操作控件
==>            this.Invoke(new MethodInvoker(delegate
            {
grid.DataSource = bs;//这里要操作控件            }));