Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebControls/DummyDataSource.cs

@@ -0,0 +1,78 @@
+//------------------------------------------------------------------------------
+// <copyright file="DummyDataSource.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.Collections;
+
+
+    /// <devdoc>
+    /// </devdoc>
+    internal sealed class DummyDataSource : ICollection {
+
+        private int dataItemCount;
+
+        internal DummyDataSource(int dataItemCount) {
+            this.dataItemCount = dataItemCount;
+        }
+
+        public int Count {
+            get {
+                return dataItemCount;
+            }
+        }
+
+        public bool IsSynchronized {
+            get {
+                return false;
+            }
+        }
+
+        public Object SyncRoot {
+            get {
+                return this;
+            }
+        }
+
+        public void CopyTo(Array array, int index) {
+            for (IEnumerator e = this.GetEnumerator(); e.MoveNext();)
+                array.SetValue(e.Current, index++);
+        }
+
+        public IEnumerator GetEnumerator() {
+            return new DummyDataSourceEnumerator(dataItemCount);
+        }
+
+
+        private class DummyDataSourceEnumerator : IEnumerator {
+
+            private int count;
+            private int index;
+
+            public DummyDataSourceEnumerator(int count) {
+                this.count = count;
+                this.index = -1;
+            }
+
+            public object Current {
+                get {
+                    return null;
+                }
+            }
+
+            public bool MoveNext() {
+                index++;
+                return index < count;
+            }
+
+            public void Reset() {
+                this.index = -1;
+            }
+        }
+    }
+}
+