public static bool CloseByWikiSite(this DocumentViewModelCollection vms,
WikiSiteViewModel wikiSite, DocumentViewModel excepts)
{
if (vms == null)
{
throw new ArgumentNullException(nameof(vms));
}
if (wikiSite == null)
{
throw new ArgumentNullException(nameof(wikiSite));
}
return(vms.CloseAll(vm => vm.SiteContext == wikiSite && vm != excepts));
}
