private bool ItemMatches(string filter, CollectionViewGalleryTestItem item)
{
if (String.IsNullOrEmpty(filter))
{
return(true);
}
return(item.Date.DayOfWeek.ToString().ToLower().Contains(filter.ToLower()));
}
protected override void ModifyObservableCollection(ObservableCollection <CollectionViewGalleryTestItem> observableCollection, params int[] indexes)
{
var index = indexes[0];
if (index > -1 && index < observableCollection.Count)
{
var replacement = new CollectionViewGalleryTestItem(DateTime.Now, "Replacement", "coffee.png", index);
observableCollection[index] = replacement;
}
}
protected override void ModifyObservableCollection(ObservableCollection <CollectionViewGalleryTestItem> observableCollection, params int[] indexes)
{
var index = indexes[0];
if (index > -1 && index <= observableCollection.Count)
{
var item = new CollectionViewGalleryTestItem(DateTime.Now, "Inserted", "oasis.jpg", index);
observableCollection.Insert(index, item);
}
}
protected override void ModifyObservableCollection(ObservableCollection <CollectionViewGalleryTestItem> observableCollection, params int[] indexes)
{
var item = new CollectionViewGalleryTestItem(DateTime.Now, "Added", "oasis.jpg", observableCollection.Count);
observableCollection.Add(item);
}
private bool ItemMatches(string filter, CollectionViewGalleryTestItem item)
{
filter = filter ?? "";
return(item.Caption.ToLower().Contains(filter?.ToLower()));
}