Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web.DynamicData/DynamicData/DataControlReferenceCollection.cs

@@ -0,0 +1,50 @@
+namespace System.Web.DynamicData {
+    using System;
+    using System.Collections.Generic;
+    using System.Collections.ObjectModel;
+    using System.ComponentModel;
+    using System.Diagnostics.CodeAnalysis;    
+    using System.Security.Permissions;    
+
+    /// <summary>
+    /// Represents a collectin of DataControlReferences
+    /// </summary>
+    public class DataControlReferenceCollection : Collection<DataControlReference> {               
+        public DataControlReferenceCollection(DynamicDataManager owner) {
+            if (owner == null) {
+                throw new ArgumentNullException("owner");
+            }
+
+            Owner = owner;
+        }
+
+        public DynamicDataManager Owner {
+            get;
+            private set;
+        }
+
+        internal void Initialize() {
+            foreach (DataControlReference reference in this) {
+                reference.Owner = Owner;
+            }
+        }
+
+        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
+        protected override void SetItem(int index, DataControlReference item) {
+            item.Owner = Owner;
+            base.SetItem(index, item);
+        }
+
+        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
+        protected override void InsertItem(int index, DataControlReference item) {
+            item.Owner = Owner;
+            base.InsertItem(index, item);
+        }
+
+        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
+        protected override void RemoveItem(int index) {
+            this[index].Owner = null;
+            base.RemoveItem(index);
+        }
+    }
+}