public RemoveCommand(TwitterSearchViewModel model)
 {
     _model = model;
 }
 public void NewSearch(string searchText)
 {
     if (!string.IsNullOrWhiteSpace(searchText))
     {
         var model = new TwitterSearchViewModel(this, searchText);
         Searches.Add(model);
         this.SearchText = string.Empty;
         if (this.PropertyChanged != null)
             this.PropertyChanged(this, new PropertyChangedEventArgs("SearchText"));
     }
 }
 public PinToStartCommand(TwitterSearchViewModel model)
 {
     _model = model;
 }