first commit

2026-09-03 04:45:36 +03:00
commit d5f52cc3d3
1038 changed files with 169579 additions and 0 deletions
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+using System;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.ComponentModel;
+
+namespace ClassicAssist.UI.Misc
+{
+    public sealed class ObservableCollectionEx<T> : ObservableCollection<T> where T : INotifyPropertyChanged
+    {
+        // this collection also reacts to changes in its components' properties
+
+        public ObservableCollectionEx()
+        {
+            CollectionChanged += ObservableCollectionEx_CollectionChanged;
+        }
+
+        private void ObservableCollectionEx_CollectionChanged( object sender, NotifyCollectionChangedEventArgs e )
+        {
+            switch ( e.Action )
+            {
+                case NotifyCollectionChangedAction.Remove:
+
+                    foreach ( T item in e.OldItems )
+                    {
+                        //Removed items
+                        item.PropertyChanged -= EntityViewModelPropertyChanged;
+                    }
+
+                    break;
+                case NotifyCollectionChangedAction.Add:
+
+                    foreach ( T item in e.NewItems )
+                    {
+                        //Added items
+                        item.PropertyChanged += EntityViewModelPropertyChanged;
+                    }
+
+                    break;
+                case NotifyCollectionChangedAction.Replace:
+
+                    break;
+                case NotifyCollectionChangedAction.Move:
+
+                    break;
+                case NotifyCollectionChangedAction.Reset:
+
+                    break;
+                default:
+
+                    throw new ArgumentOutOfRangeException();
+            }
+        }
+
+        public void EntityViewModelPropertyChanged( object sender, PropertyChangedEventArgs e )
+        {
+            //This will get called when the property of an object inside the collection changes - note you must make it a 'reset' - dunno why
+            NotifyCollectionChangedEventArgs args =
+                new NotifyCollectionChangedEventArgs( NotifyCollectionChangedAction.Reset );
+
+            if ( args.NewStartingIndex < 0 )
+            {
+                return;
+            }
+
+            OnCollectionChanged( args );
+        }
+    }
+}