问题是标签在progress-bar
完成之前显示。如何在label
完全完成后才能显示progress-bar
?
我尝试将最大值更改为更高的数字但不起作用。
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;
}
}
}
}
答案 0 :(得分:6)
实际上,您的代码运行非常庞大,将值从0%设置为100%不到一秒钟!但
ProgressBar
有两种显示当前状态的样式(Classic
和Continues
)。
在Continues
模式下,如果进度值从0%升至100%,则控件将显示动画,但不会显示真实准确的进度。您可以通过Thread.Sleep()
设置延迟,并在for循环后立即显示标签,以了解我的情况!
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;
}
答案 1 :(得分:3)
这是一个动画问题。 A&#34; hack&#34;它实际上是将进度值减少1:
progressBar1.Minimum = 0;
progressBar1.Maximum = 5000;
for (int i = 0; i < progressBar1.Maximum; i++) {
progressBar1.Value = i;
progressBar1.Value = Math.Max(i - 1, progressBar1.Minimum);
}
label1.Visible = true;
答案 2 :(得分:1)
使用progressBar1.Refresh
:
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;
progressBar1.Refresh();
if (i == 5000)
{
label1.Visible = true;
}
}
}