Hi ! 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 (...
We have multiple filters based on the same collection. i.e. we are displaying the same collection in a variety of ways. What i would like to be able to do is ask all of the CollectionViews to refresh when a property changes (as the collection view will only refilter if items get added/removed from the collection). Is there a way to find ...
OK, so I need to create an ICollectionView from an existing ICollectionView. The idea is that I can take whatever filters/grouping/sorting has been set on the existing view and then create other views from that "base" view, in effect "layering" or aggregating my filters, etc. I need the end view to update its items "auto-magically" wh...
We have a WPF app that has a DataGrid inside a ListView. private DataTable table_; We do a bunch or dynamic column generation ( depending on the report we are showing ) We then do the a query and fill the DataTable row by row, this query may or may not have data.( not the problem, an empty grid is expected ) We set the ListView's It...
I saw ICollectionView being introduced with WPF to handle situations when you need sorting and filtering enabled. I even saw few articles which sort items, but my main concern is why my approach is failing. Lets see my code : <ListView ItemsSource="{Binding}" x:Name="lvItems" GridViewColumnHeader.Click="ListView_Click"> <L...
Adding objects with the IEditableCollectionView addNew() method is pretty decent. However I'm not sure how well it works with my generic code I have. I have a ObservableCollection of my base class. Depending on what the user wants to see it can be filled with DerivedA or DerivedB ( or mutliple other derived type classes ). It never has ...
I'm playing with ICollectionView right now, and am encountering a problem where I think I understand the "why", but not the "how do I fix it". :) I have a ComboBox that's databound to an ICollectionView, and it is initially set with the following code: NameView = CollectionViewSource.GetDefaultView( names); // names is an IEnumerable<...