修复WinForms中的进度条

Question

问题是标签在progress-bar完成之前显示.如何label在progress-bar完全显示后才能显示？

我尝试将最大值更改为更高的数字,但它不起作用.

public partial class dload : Form
{
    public dload()
    {
        InitializeComponent();
    }

    private void dload_Load(object sender, EventArgs e)
    {
        label1.Visible = false;
    }

    private void button1_Click(object sender, EventArgs e)
    {
        int i = 0;
        progressBar1.Minimum = 0;
        progressBar1.Maximum = 5000;
        for (i = 0; i <= 5000; i++)
        {
            progressBar1.Value = i;
            if (i == 5000)
            {
                label1.Visible = true;
            }
        }
    }
}

Answer 1

实际上,你的代码运行非常庞大,从0%到100%设置值大约不到一秒!但 ProgressBar有两种样式用于显示当前状态(Classic和Continues).

在Continues模式中,如果进度值从0%变为100%,则控件将显示动画,但不显示真实且准确的进度.您可以设置延迟通过Thread.Sleep()并在for循环后立即显示您的标签,以了解我发生的事情!

以下代码将起作用:

private void button1_Click(object sender, EventArgs e)
{
    int i = 0;
    progressBar1.Minimum = 0;
    progressBar1.Maximum = 5000;
    for (i = 0; i <= 5000; i++)
    {
        Thread.Sleep(1);
        progressBar1.Value = i;

    }
    label1.Visible = true;
}