c#中子執行緒控制進度條的一個簡單例子
阿新 • • 發佈:2019-01-21
{
public
Form1()
{
InitializeComponent();
}
private
void
button1_Click(
object
sender, EventArgs e)
{
//
用子執行緒工作
new
System.Threading.Thread(
new
System.Threading.ThreadStart(StartDownload)).Start();
}
//
開始下載
public
void
StartDownload()
{
Downloader downloader
=
new
Downloader();
downloader.onDownLoadProgress
+=
new
Downloader.dDownloadProgress(downloader_onDownLoadProgress);
downloader.Start();
}
//
同步更新ui
void
downloader_onDownLoadProgress(
long
total,
long
current)
{
if
(
this
.InvokeRequired)
{
this
.Invoke(
new
Downloader.dDownloadProgress(downloader_onDownLoadProgress),
new
object
[]
{ total, current }
);
}
else
{
this
.progressBar1.Maximum
=
(
int
)total;
this
.progressBar1.Value
=
(
int
)current;
}
}
}
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