Question

c#窗体应用程序，怎样用代码创建定时器，来显示时间？不把Timer拖到界面上。

Answer 1

private void button2_Click(object sender, EventArgs e)
{

Timer tr = new Timer();
tr.Interval = 1000;
tr.Tick += tr_Tick;
tr.Start();
}

void tr_Tick(object sender, EventArgs e)
{
UpdateLable(DateTime.Now);
}
delegate void UpdateTime(DateTime dt);
void UpdateLable(DateTime dt)
{
if (this.label4.InvokeRequired)
{
UpdateTime up = new UpdateTime(UpdateLable);
this.Invoke(up, new object[] { dt });
}
else
{
this.label4.Text = dt.ToString();
}
}