Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,101 @@
+//------------------------------------------------------------------------------
+// <copyright file="StyleCollection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+    using System;
+    using System.Collections;
+    using System.ComponentModel;
+    using System.Web;
+
+
+    /// <devdoc>
+    ///     Provides a collection of Style objects
+    /// </devdoc>
+    public class StyleCollection : StateManagedCollection {
+        private static readonly Type[] knownTypes = new Type[] { typeof(Style) };
+
+        internal StyleCollection() {
+        }
+
+
+        /// <devdoc>
+        /// Gets the Style at the specified index
+        /// </devdoc>
+        public Style this[int i] {
+            get {
+                return (Style)((IList)this)[i];
+            }
+            set {
+                ((IList)this)[i] = value;
+            }
+        }
+
+
+        /// <devdoc>
+        /// Adds a Style to the collection
+        /// </devdoc>
+        public int Add(Style style) {
+            return ((IList)this).Add(style);
+        }
+
+
+        public bool Contains(Style style) {
+            return ((IList)this).Contains(style);
+        }
+
+
+        public void CopyTo(Style[] styleArray, int index) {
+            base.CopyTo(styleArray, index);
+        }
+
+
+        public int IndexOf(Style style) {
+            return ((IList)this).IndexOf(style);
+        }
+
+
+        /// <devdoc>
+        /// Inserts a Treelevel at the specified index
+        /// </devdoc>
+        public void Insert(int index, Style style) {
+            ((IList)this).Insert(index, style);
+        }
+
+
+        protected override object CreateKnownType(int index) {
+            return new Style();
+        }
+
+
+        protected override Type[] GetKnownTypes() {
+            return knownTypes;
+        }
+
+
+        /// <devdoc>
+        /// Removes a Style from the collection.
+        /// </devdoc>
+        public void Remove(Style style) {
+            ((IList)this).Remove(style);
+        }
+
+
+        /// <devdoc>
+        /// Removes a Style from the collection at a given index.
+        /// </devdoc>
+        public void RemoveAt(int index) {
+            ((IList)this).RemoveAt(index);
+        }
+
+
+        protected override void SetDirtyObject(object o) {
+            if (o is Style) {
+                ((Style)o).SetDirty();
+            }
+        }
+    }
+}
+