private void PerformSearch(string searchText)
{
if (string.IsNullOrWhiteSpace(searchText))
{
SelectedSearchResults?.Clear();
SearchResults = null;
HasSearchResults = false;
return;
}
var keywords = searchText.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var results = new List <SearchResultItem>();
foreach (var category in _categories)
{
var resultWithKeywords =
from counter in category.Counters
from instance in category.Instances.DefaultIfEmpty()
select new SearchResultItem(keywords, category.Name, counter, instance);
results.AddRange(resultWithKeywords.Where(result => result.IsMatch));
}
SearchResults = results;
HasSearchResults = results.Any();
}
public CategoriesViewModel()
{
_categories = new KeyedCollectionProxy <string, CategoryViewModel>(c => c.Name);
_categories.CollectionView.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
AddCommand = CreateCommand(PublishAdd,
() => SelectedCategory != null &&
SelectedCounters != null && SelectedCounters.Count > 0 &&
SelectedInstances != null && SelectedInstances.Count > 0);
AddSearchResultsCommand = CreateCommand(PublishAddSearchResults,
() => SelectedSearchResults != null && SelectedSearchResults.OfType <SearchResultItem>().Any(t => t.IsValid));
CloseCommand = CreateCommand(OnClosed);
Load();
}
