public virtual void OnPageDownloadComplete(PageDownloadCompleteEventArgs e)
{
if (PageDownloadComplete != null)
{
Delegate[] delArray = PageDownloadComplete.GetInvocationList();
foreach (Delegate del in delArray)
{
PageDownloadCompleteHandler method = (PageDownloadCompleteHandler)del;
method.BeginInvoke(this, e, null, null);
}
}
}
// 批量下载所有的page的内容
public bool DownloadPageContent(CancellationToken ct)
{
XPCollection<Page> pages = new XPCollection<Page>(XpoDefault.Session, CriteriaOperator.Parse("Is_Down = ?", false));
foreach(Page p in pages)
{
if (ct.IsCancellationRequested)
{
OnAllPageDownloadComplete(new EventArgs()); // 通知下载结束
return false; // 被取消后的退出
}
else
{
p.ParentWeb.Rule.GetPageContent(p);
// 发出下载完成事件
PageDownloadCompleteEventArgs e = new PageDownloadCompleteEventArgs(p);
OnPageDownloadComplete(e);
}
}
OnAllPageDownloadComplete(new EventArgs()); // 通知下载结束
return true; // 下载完成后退出
}