private void SearchImages(string title)
{
try
{
var flicrRepository = new FlickrRepository();
Photos = new ScrollableObservableCollection(flicrRepository.LoadImages(CurrentPage, title).Result, title);
}
catch (Exception ex)
{
exManager.PublishError(ex.Message);
}
}
public Windows.Foundation.IAsyncOperation <LoadMoreItemsResult> LoadMoreItemsAsync(uint count)
{
if (isRunning) //not thread safe
{
throw new InvalidOperationException("Only one operation in flight at a time");
}
isRunning = true;
int itemsCount = 0;
return(AsyncInfo.Run(async c =>
{
try
{
currentPage++;
FlickrRepository repository = new FlickrRepository();
var result = await repository.LoadImages(currentPage, title);
var photos = new PhotoCollection();
if (result != null)
{
photos = result;
HasMoreItems = result.Any();
itemsCount = result.Count;
}
foreach (var item in photos)
{
this.Add(item);
}
isRunning = false;
}
catch (Exception ex)
{
HasMoreItems = false;
exManager.PublishError(ex.Message);
}
LoadMoreItemsResult res = new LoadMoreItemsResult()
{
Count = (uint)itemsCount
};
return res;
}));
}