多線程問題,程式運行時,還是單線程

多線程問題,程式運行時,還是單線程,表單就像死了,請哪位老大指點一下,謝謝

最近一直看多線程,感覺高深莫測啊,左看右看,還是不太理解

 

表單上有二個按鈕,一個是把目前時間顯示在表單上,

另一個是向表中插入10000條記錄,按下這個按鈕同時,則把這個按鈕的enable屬性設定成false,等10000條資料插入到表中,再把它的enable屬性設定 成true

delegate void testdele();
        int intCount = 0;

        TestUsingThread.testthread tt = new testthread();
        public Form1()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 按鈕事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnListNumber_Click(object sender, EventArgs e)
        {         
            ThreadStart ts = new ThreadStart(this.DeleCheck);

            Thread td = new Thread(ts);

            td.Start();
        }

        void DeleCheck()
        {
            testdele testmydele = new testdele(Add);

            this.Invoke(testmydele);
        }
        /// <summary>
        /// 向表中插入10000條記錄
        /// </summary>
        void Add()
        {

            btnListNumber.Enabled = false;

            for (int i = 0; i < 10000; i++)
            {
                if (tt.Add(i) > 0)
                {
                    intCount++;
                }
            }

            MessageBox.Show(intCount.ToString());

            btnListNumber.Enabled = true;

        }
        /// <summary>
        /// 把目前時間顯示在標籤上
        /// </summary>
        private void btnListLable_Click(object sender, EventArgs e)
        {
            labMessage.Text = System.DateTime.Now.ToString();
        }