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using System.ComponentModel 直接使用EgProgressBar方法
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BackgroundWorker Bw = new BackgroundWorker();
ListView listView1 = new ListView();
public void EgProgressBar()
{
DirectoryInfo di = new DirectoryInfo(@"C:/Windows");
FileInfo[] fi = di.GetFiles();
progressBar1.Maximum = fi.Length - 1; //设置进度条的最大值
Bw.WorkerSupportsCancellation = true;
Bw.WorkerReportsProgress = true;
Bw.DoWork += new DoWorkEventHandler(Add); //绑定事件
Bw.ProgressChanged += new ProgressChangedEventHandler(Progress);
Bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(End);
Bw.RunWorkerAsync();
}
public void Add(object sender, DoWorkEventArgs e)
{
DirectoryInfo di = new DirectoryInfo(@"C:/Windows");
foreach (FileInfo item in di.GetFiles())
{
ListViewItem lvt = new ListViewItem();//用listviewItem来存储获取到文件的信息
lvt.Text = item.FullName;
lvt.SubItems.Add(DateTime.Now.ToLongTimeString());
Thread.Sleep(500);
Bw.ReportProgress(listView1.Items.Count, lvt);//把当前的进度报告出去，获取到第几个文件和该文件的信息
}
}
public void Progress(object sender, ProgressChangedEventArgs e)
{
progressBar1.Value = e.ProgressPercentage;//获取第几个文件，用来改变进度条的进度
ListViewItem lv = e.UserState as ListViewItem;
listView1.Items.Add(lv);//把最新获取到的文件信息添加到listview
}
public void End(object sender, RunWorkerCompletedEventArgs e)
{ progressBar1.Value = 0;//进度条清0
}
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传递方法参数RunWorkerAsync（参数）
获取方法 DoWorkEventArgs 的 e.Argument
结束时判定 Dowork方法 e.result 自动传递到completed 的e.result 中
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