Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/NonVisualControlAttribute.cs

@@ -0,0 +1,88 @@
+//------------------------------------------------------------------------------
+// <copyright file="NonVisualControlAttribute.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI {
+
+    using System;
+    using System.Collections;
+    using System.ComponentModel;
+
+    /// <devdoc>
+    /// </devdoc>
+    [AttributeUsage(AttributeTargets.Class)]
+    public sealed class NonVisualControlAttribute : Attribute {
+
+
+        /// <internalonly/>
+        /// <devdoc>
+        /// <para></para>
+        /// </devdoc>
+        public static readonly NonVisualControlAttribute NonVisual = new NonVisualControlAttribute(true);
+
+
+        /// <internalonly/>
+        /// <devdoc>
+        /// <para></para>
+        /// </devdoc>
+        public static readonly NonVisualControlAttribute Visual = new NonVisualControlAttribute(false);
+
+
+        /// <internalonly/>
+        /// <devdoc>
+        /// <para></para>
+        /// </devdoc>
+        public static readonly NonVisualControlAttribute Default = Visual;
+
+        private bool _nonVisual;
+
+
+        /// <devdoc>
+        /// </devdoc>
+        public NonVisualControlAttribute() : this(true) {
+        }
+
+
+        /// <devdoc>
+        /// </devdoc>
+        public NonVisualControlAttribute(bool nonVisual) {
+            _nonVisual = nonVisual;
+        }
+
+
+        /// <devdoc>
+        ///    <para>Indicates if the control is non-visual.</para>
+        /// </devdoc>
+        public bool IsNonVisual {
+            get {
+                return _nonVisual;
+            }
+        }
+
+
+        /// <internalonly/>
+        public override bool Equals(object obj) {
+            if (obj == this) {
+                return true;
+            }
+
+            NonVisualControlAttribute other = obj as NonVisualControlAttribute;
+            return (other != null) && (other.IsNonVisual == IsNonVisual);
+        }
+
+
+        /// <internalonly/>
+        public override int GetHashCode() {
+            return _nonVisual.GetHashCode();
+        }
+
+
+        /// <internalonly/>
+        public override bool IsDefaultAttribute() {
+            return this.Equals(Default);
+        }
+    }
+}
+