private bool UpdateItemCollection()
{
bool ret = false;
foreach (string u in mUrlList)
{
RSSFeed f = RSSReader.GetFeed(u);
if (string.IsNullOrEmpty(f.ErrorMessage))
{
mItemCollection.RemoveAll(delegate(RSSItem o) { return(o.Feed.URL == u); });
foreach (RSSItem i in f.Items)
{
mItemCollection.Add(i);
ret = true;
}
}
}
return(ret);
}