Webvar copy = new ObservableCollection (collection) foreach (var item in copy) { if (item.Name == "Fred") { collection.Remove (item); } } that said, I agree with Anurag that you shouldn't be doing this type of thing with an observablecollection and certainly not inside a CollectionChanged Event. Share Improve this answer Follow WebJul 7, 2010 · In the datagrid I have a field called IssueValue, and it has several values, now, I want to go and create an item in a drop down list for each unique item in the …
C# ObservableCollection tutorial with examples - demo2s.com
Web1 day ago · As you see, void AddEmployees needs to directly handle with properties of type T in 2 different ways. In first lines I add items to Collection, using dynamic keyword. This enables me to write code like that. After that I'm using Linq on Collection, where certain properties meets criteria. For that I use reflection. WebMay 23, 2009 · ObservableCollection items = new ObservableCollection (); items.CollectionChanged += items_CollectionChanged; static void items_CollectionChanged (object sender, NotifyCollectionChangedEventArgs e) { if (e.OldItems != null) { foreach (INotifyPropertyChanged item in e.OldItems) … screen brush app
c# - Access properties in generic class - Stack Overflow
WebFeb 25, 2013 · I have a view (consists of a listview) that is binded to some observable collection. In other words I have: var someCollection = new ObservableCollection(); // initialize someCollection ListView someView = new ListView(); someView.DataContext = someCollection; someView.ItemsSource = … WebOct 17, 2024 · Find Index on Name 2. How to Handle Duplicate Name. You can refer the following code. You can use a LINQ to find the object in the ProtocolItems. Then get the index in the ProtocolItems list. /////Here I am trying to find the Index///// //// this is a new object, you can not find it in ProtocolItems list. WebApr 11, 2024 · This placeholder item is rendered perfectly in the DataGrid. However, if I later clear the observable collection and populate it with more items, only the first item of the new collection is displayed. For example, this code below will make the DataGrid display only one row with "Property 0" and "Value 0" in its 2 columns. screen brush app for windows