实现效果:
知识运用:
ProgressBar控件的Value属性 //控件的当前值
Maximum属性 //ProgressBar正在使用的范围的上限
PerformStep方法 //按照Step属性的数量增加任务栏的当前位置
public void PerformStep()
实现代码:
private void StartOrStop_Click(object sender, EventArgs e)
{
if (timer1.Enabled == false)
{
timer1.Enabled = true;
StartOrStop.Text = "停止";
}
else
{
timer1.Enabled = false;
StartOrStop.Text = "开始";
}
} private void timer1_Tick(object sender, EventArgs e)
{
if (progressBar1.Value == progressBar1.Maximum)
{
progressBar1.Value = progressBar1.Minimum;
}
else
{
progressBar1.PerformStep();
}
int process = 100 *
(progressBar1.Value - progressBar1.Minimum)
/ (progressBar1.Maximum - progressBar1.Minimum);
label1.Text = process.ToString()+"%" ;
}