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private void btnBegin_Click(object sender, EventArgs e)
{
if (go)
{
lblUser.Text = lblUser.PointToScreen(new Point(0, 0)).ToString();
DataSet myds = new DataSet();
myds.ReadXml("List.xml");
dTable = myds.Tables[0];
myTimer.Start();
go = false;
btnBegin.Text = "停止" + lblUser.Text;
myTimer.Tick += new EventHandler(timer1_Tick);
}
else
{
myTimer.Enabled = false;
// to do delete node in xml
btnBegin.Text = "开始" + lblUser.Text;
lblList.Text += lblUser.Text + "\r\n";
go = true;
}
}
private void timer1_Tick(object sender, EventArgs e)
{
lblUser.Text = "";
if (dTable != null && dTable.Rows.Count > 0)
{
DataTotal = dTable.Rows.Count;
RandomNumber = new Random((int)DateTime.Now.Ticks);
randomdata = RandomNumber.Next(DataTotal);
lblUser.Text = dTable.Rows[randomdata].ItemArray.GetValue(0).ToString();
}
}