} // end SearchMethod
/// <summary>
/// Gets the selected image URL and sends it back to the FlickrImage property to display the image
/// </summary>
private void GetFlickrImage()
{
int i = FlickrList.IndexOf(SelectedImage);
if (i <= FlickrList.Count)
{
FlickrImage = selectedImage.URL;
}
} // end GetFlickrImage
/// <summary>
/// Method is called when the search button is selected
/// Searches all images related to the tag inserted by user
/// </summary>
private async void SeachMethod()
{
if (flickrTask != null && flickrTask.Status != TaskStatus.RanToCompletion)
{
var result = MessageBox.Show("Cancel the current Flickr search?", "Are you sure?", MessageBoxButton.YesNo);
if (result == MessageBoxResult.No)
{
return;
}
else
{
flickrClient.CancelAsync(); // cancel current search
}
} // end if
else
{
var flickrURL = string.Format("https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key={0}&tags={1}&tag_mode=all&per_page=500&privacy_filter=1"
, KEY, Tag.Replace(" ", ","));
FlickrList.Clear(); // clear imagesListBox
FlickrImage = null; // clear pictureBox
x.Title = "Loading...";
FlickrList.Add(x); // display Loading...
try
{
flickrTask = flickrClient.DownloadStringTaskAsync(flickrURL);
XDocument flickrXML = XDocument.Parse(await flickrTask);
var flickrPhotos =
(from photo in flickrXML.Descendants("photo")
let id = photo.Attribute("id").Value
let title = photo.Attribute("title").Value
let secret = photo.Attribute("secret").Value
let server = photo.Attribute("server").Value
let farm = photo.Attribute("farm").Value
select new FlickrResults
{
Title = title,
URL = string.Format("https://farm{0}.staticflickr.com/{1}/{2}_{3}.jpg", farm, server, id, secret)
}).ToList();
if (flickrPhotos.Any())
{
FlickrList.Clear(); // clear imagesListBox
FlickrList = new ObservableCollection <FlickrResults>(flickrPhotos);
}
else // no matches were found
{
FlickrList.Clear(); // clear imagesListBox
x.Title = "No matches";
FlickrList.Add(x);
}
} // end try
catch (WebException)
{
// check whether Task failed
if (flickrTask.Status == TaskStatus.Faulted)
{
MessageBox.Show("Unable to get results from Flickr");
}
FlickrList.Clear(); // clear imagesListBox
x.Title = "Error occurred";
FlickrList.Add(x);
} // end catch
} // end else
} // end SearchMethod
