为什么这段代码会失去响应，我是C#菜鸟

Question

private void button1_Click(object sender, EventArgs e)        {            string EPCNo;            int i = 0;            if (this.Text == "发卡程序--未找到发卡器")            {                readers = reader.GetReaderList();                if (readers.Count == 0)                {                    MessageBox.Show("未找到发卡器，请先插好发卡器");                    return;                }                else                {                    reader.Connect(readers[0]);                    this.Text = "发卡程序--发卡器已连接";                }            }            button1.Enabled = false;            button2.Enabled = true;            button3.Enabled = false;            faka = true;                        while (faka)            {                if (i == Convert.ToInt16(textBox1.Text))                {                    listView1.Items.RemoveAt(0);                    i = 0;                }                ReadEpcResult readresult = reader.ReadEpc();                if (readresult.ReadResult.Result == AccessResult.Success)                {                    EPCNo = readresult.TagAccessed.Epc;                     if (EPCNo != listView1.Items[0].Text)                    {                        ProgramEpcParams pep = new ProgramEpcParams();                        pep.NewEpc = listView1.Items[0].Text;                        pep.AntennaPortNumber = 0;                        pep.AccessPassword = "00000000";                         ProgramEpcResult writeresult = reader.ProgramEpc(pep);                        if (writeresult.WriteResult.Result == AccessResult.Success)                        {                            i = i + 1;                            richTextBox1.Text = listView1.Items[0].Text + "发卡成功" + "\n";                        }                    }                    else                    {                        richTextBox1.Text = listView1.Items[0].Text + "已发放，请放下一张" + "\n";                    }                }                Thread.Sleep(100);            }        }

Answer 1

private void button1_Click(object sender, EventArgs e)  {  string EPCNo;  int i = 0;  if (this.Text == "发卡程序--未找到发卡器")  {  readers = reader.GetReaderList();  if (readers.Count == 0)  {  MessageBox.Show("未找到发卡器，请先插好发卡器");  return;  }  else  {  reader.Connect(readers[0]);  this.Text = "发卡程序--发卡器已连接";  }  }  button1.Enabled = false;  button2.Enabled = true;  button3.Enabled = false;  faka = true;     while (faka)  {  if (i == Convert.ToInt16(textBox1.Text))  {  listView1.Items.RemoveAt(0);  i = 0;  }  ReadEpcResult readresult = reader.ReadEpc();  if (readresult.ReadResult.Result == AccessResult.Success)  {  EPCNo = readresult.TagAccessed.Epc;   if (EPCNo != listView1.Items[0].Text)  {  ProgramEpcParams pep = new ProgramEpcParams();  pep.NewEpc = listView1.Items[0].Text;  pep.AntennaPortNumber = 0;  pep.AccessPassword = "00000000";   ProgramEpcResult writeresult = reader.ProgramEpc(pep);  if (writeresult.WriteResult.Result == AccessResult.Success)  {  i = i + 1;  richTextBox1.Text = listView1.Items[0].Text + "发卡成功" + "\n";  }  }  else  {  richTextBox1.Text = listView1.Items[0].Text + "已发放，请放下一张" + "\n";  }  }  Thread.Sleep(100);  }  }
 

Answer 2

1看看button1 绑定的事件是不是  button1_Click
2打断点瞧瞧问题在哪里

Answer 3

没反应是单击 button1的时候不进入到  button1_Click 还是怎么的??
假如是 不进入到  button1_Click  那么你到当前from的 Designer.cs 文件中去检查下:
this.button1.Click += new System.EventHandler(this.button1_Click);看是不是是这样绑定的....

Answer 4

会执行button1_Click ，是程序死掉了一样

Answer 5

 faka = true;     while (faka)
这个 是不是你搞错了???while会无线循环的 ...你在while中又没有 修改faka;;;

Answer 6

可以不停的读卡并且将卡号放到richtextbox ,只是我想让它停止，一点停止按钮，不响应停止按钮的事件

Answer 7

停止事件有里有修改faka为false

Answer 8

草了个蛋蛋，加上Application.DoEvents就行了

Answer 9

Application.DoEvents 这个东西 是不是停止当前处理..等待其他消息啊?这个我还没用过