void Spider_DownloadFinish(int count)
{
DFHandler h = c =>
{
beginDownload.Enabled = true;
beginDownload.Text = "开始爬图";
stopDownload.Enabled = false;
MessageBox.Show("完成爬图： " + c.ToString() + "个");
};
this.Invoke(h, count);
}
void Spider_DownloadFinish(int count)
{
DFHandler h = c =>
{
_spider.Abort();
btnDownload.IsEnabled = true;
btnDownload.Content = "Download";
btnStop.IsEnabled = false;
MessageBox.Show("Finished " + c.ToString());
};
Dispatcher.Invoke(h, count);
}
void Spider_DownloadFinish()
{
DFHandler h = () =>
{
_spider.Abort();
btnDownload.IsEnabled = true;
btnDownload.Content = "Download";
btnStop.IsEnabled = false;
MessageBox.Show("Finished.");
};
Dispatcher.Invoke(h);
}
/// <summary>
/// 下载完成执行的委托方法
/// </summary>
/// <param name="count"></param>
private void Spider_DownloadFinish(int count)
{
//DFHandler是一个委托，委托里面封装需要执行的操作，然后调用Dispatcher.Invoke()执行委托
DFHandler handler = h =>
{
spider.Abort();
btnDownload.IsEnabled = true;
btnDownload.Content = "Download";
btnStop.IsEnabled = false;
MessageBox.Show($"Finished {h.ToString()}");
};
Dispatcher.Invoke(handler, count);
}