1 files changed, 65 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core/NotifyCollectionChangedEventArgsEx.cs b/Xamarin.Forms.Core/NotifyCollectionChangedEventArgsEx.cs
new file mode 100644
index 00000000..bb6a2b84
--- /dev/null
+++ b/Xamarin.Forms.Core/NotifyCollectionChangedEventArgsEx.cs
@@ -0,0 +1,65 @@
+using System.Collections;
+using System.Collections.Specialized;
+
+namespace Xamarin.Forms
+{
+	internal class NotifyCollectionChangedEventArgsEx : NotifyCollectionChangedEventArgs
+	{
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action) : base(action)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, IList changedItems) : base(action, changedItems)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, IList newItems, IList oldItems) : base(action, newItems, oldItems)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, IList newItems, IList oldItems, int startingIndex) : base(action, newItems, oldItems, startingIndex)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, IList changedItems, int startingIndex) : base(action, changedItems, startingIndex)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, IList changedItems, int index, int oldIndex) : base(action, changedItems, index, oldIndex)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, object changedItem) : base(action, changedItem)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, object changedItem, int index) : base(action, changedItem, index)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, object changedItem, int index, int oldIndex) : base(action, changedItem, index, oldIndex)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, object newItem, object oldItem) : base(action, newItem, oldItem)
+		{
+			Count = count;
+		}
+
+		public NotifyCollectionChangedEventArgsEx(int count, NotifyCollectionChangedAction action, object newItem, object oldItem, int index) : base(action, newItem, oldItem, index)
+		{
+			Count = count;
+		}
+
+		public int Count { get; private set; }
+	}
+}
+\ No newline at end of file