Question

datetimepicker 在窗体运行时如何实现 每秒刷新一次

Form1运行时，怎样让时间刷新

Answer 1

Timer 控件

追问

能写一个具体的代码吗

追答

private void Form1_Load(object sender, EventArgs e)
{
dateTimePicker1.Format = DateTimePickerFormat.Custom; dateTimePicker1.CustomFormat = "yyyy-MM-dd HH:mm:ss";
timer1.Interval = 1000;
timer1.Start();
}
private void timer1_Tick(object sender, EventArgs e)
{

dateTimePicker1.Text=DateTime.Now.ToString();
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "yyyy-MM-dd HH:mm:ss";
}