icollectionview

maybe someone can help me? I have the following scenario: A simple view: <Window x:Class="DataGridSortBug.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <DockPanel> <StackPanel DockPanel.Dock="Top"> <Button Click="Button_Click">Refresh</Button> </StackPanel> <DataGrid ItemsSource="{Binding View}" /> </DockPanel> </Window> The code behind: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); DataContext = new ViewModel(); } public

I've written a code for filtering items in ComboBox: My question is, how would you do that? I think that this solution with reflection could be very slow .. ICollectionView view = CollectionViewSource.GetDefaultView(newValue); view.Filter += this.FilterPredicate; private bool FilterPredicate(object value) { if (value == null) return false; if (String.IsNullOrEmpty(SearchedText)) return true; int index = value.ToString().IndexOf( SearchedText, 0, StringComparison.InvariantCultureIgnoreCase); if ( index > -1) return true; return FindInProperties(new string[] { "Property1", "Property2" }, value,

I want to filter an ObservableCollection to a subset based on type (type AddPoint) and want it ordered ascending with no duplicates. My base class is ModelBase, w/ sub-classes AddPoint, Time, Repeat, etc... The ObservableCollection MotionSequenceCollection will be filled w/ those types in any order and some will be duplicates. I've tried several different times and shown them below in the ICollectionView Property that I 'pulled' from: Bind subset of collection . OBSERVABLE COLLECTION private ObservableCollection<ModelBase> _motionSequenceCollection = new ObservableCollection<ModelBase>();

Is possible to convert a Predicate<T> to Expression<Func<T, bool>> in some way? I would like to use the next IQueryable function using the filters of the my ICollectionView: public static System.Linq.IQueryable<TSource> Where<TSource>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) Thanks In theory it is possible to convert a delegate 'back' to an expression, because you can request the emitted IL of a delegate, which gives you the information you need to transform it back. However, it's for a reason that neither LINQ to

Can anybody help me properly implement ICollectionViewLiveShaping for the purpose of filtering? I haven't found much useful documentation online regarding this issue. Here's what I have: public ICollectionView WorkersEmployed { get; set; } WorkersEmployed = new CollectionViewSource { Source = GameContainer.Game.Workers }.View; I'm not using GetDefaultView because I need multiple instances of filters on this collection. If it matters, GameContainer.Game.Workers is an ObservableCollection . ApplyFilter(WorkersEmployed); private void ApplyFilter(ICollectionView collectionView) { collectionView