public async void Execute_OnSearchClick()
{
if (Searching)
{
return;
}
Searching = true;
DispatcherService.InvokeIfRequired(() => _tweets.Clear());
if (_tweetSearchService != null && !string.IsNullOrEmpty(SearchString))
{
await _tweetSearchService.GetMeSomeTweets <LinqTweet>(newTweets =>
{
if (newTweets != null)
{
DispatcherService.InvokeIfRequired(() => _tweets.AddRange(newTweets));
}
Searching = false;
if (OnSearchComplete != null)
{
OnSearchComplete();
}
}, SearchString);
}
}
/// <summary>
/// If this ViewModel's View houses other injectable View's, this method will be useful
/// </summary>
/// <param name="type"></param>
/// <param name="region"></param>
/// <returns></returns>
/// <remarks>Only call this for a nested control once the parent has been loaded</remarks>
protected virtual TView RegisterAndActivateView <TView>(string region = null) where TView : class
{
if (!string.IsNullOrWhiteSpace(region))
{
Logger.Default.Debug("Activating view {0}", typeof(TView).Name);
TView view = null;
DispatcherService.InvokeIfRequired(() => SwitchView(region, out view));
return(view);
}
return(null);
}
public DisplayViewModelBase(ITweetService tweetService)
{
_tweetSearchService = tweetService;
CanSwitchView = true;
Searching = false;
if (_tweets == null)
{
DispatcherService.InvokeIfRequired(() =>
{
_tweets = new ObservableCollectionEx <LinqTweet>();
TweetSearchTweets = new ListCollectionView(_tweets);
});
}
}
