protected override IEnumerable <Data.SmileyDataModel> LoadPageInBackground(int index)
{
var list = new List <Data.SmileyDataModel>();
if (System.ComponentModel.DesignerProperties.IsInDesignTool)
{
return(list);
}
// load smilies from the web, or from cache
else if (this._smilies.Count == 0)
{
IEnumerable <TagMetadata> cache = CoreExtensions.LoadFromFile <List <TagMetadata> >("smilies.xml");
if (cache == null)
{
cache = ForumTasks.FetchAllSmilies();
}
this._smilies.AddRange(cache);
if (this._smilies.Count != 0)
{
this._smilies.SaveToFile("smilies.xml");
}
this._allSmilies = new List <Data.SmileyDataModel>(
this._smilies.Select(item => new Data.SmileyDataModel(item)));
double maxPages = this._smilies.Count / SMILIES_PER_PAGE;
this._maxPages = (int)Math.Ceiling(maxPages);
}
// create a sub set of smilies at a time
if (index <= _maxPages)
{
var page = this._allSmilies.Page(index, SMILIES_PER_PAGE);
list.AddRange(page);
}
return(list);
}
public override IList <ForumMetadata> LoadForumList()
{
return(new List <ForumMetadata>(ForumTasks.FetchAllForums()));
}
