Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System/compmod/system/componentmodel/SettingsBindableAttribute.cs

@@ -0,0 +1,61 @@
+//------------------------------------------------------------------------------
+// <copyright file="SettingsBindableAttribute.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+/*
+ */
+namespace System.ComponentModel {
+    using System;
+    using System.Diagnostics;
+    using System.Security.Permissions;
+
+    /// <devdoc>
+    ///    Use this attribute to specify typical properties on components that can be bound 
+    ///    to application settings.
+    /// </devdoc>
+    [AttributeUsage(AttributeTargets.Property)]
+    public sealed class SettingsBindableAttribute : Attribute {
+        /// <devdoc>
+        ///       Specifies that a property is appropriate to bind settings to. 
+        /// </devdoc>
+        public static readonly SettingsBindableAttribute Yes = new SettingsBindableAttribute(true);
+
+        /// <devdoc>
+        ///       Specifies that a property is not appropriate to bind settings to. 
+        /// </devdoc>
+        public static readonly SettingsBindableAttribute No = new SettingsBindableAttribute(false);
+
+        private bool _bindable   = false;
+        
+        public SettingsBindableAttribute(bool bindable) {
+            _bindable = bindable;
+        }
+        
+        /// <devdoc>
+        ///     Gets a value indicating whether a property is appropriate to bind settings to.
+        /// </devdoc>
+        public bool Bindable {
+            get {
+                return _bindable;
+            }
+        }
+
+        public override bool Equals(object obj) {
+            if (obj == this) {
+                return true;
+            }
+
+            if (obj != null && obj is SettingsBindableAttribute) {
+                return (((SettingsBindableAttribute)obj).Bindable == _bindable);
+            }
+
+            return false;
+        }
+
+        public override int GetHashCode() {
+            return _bindable.GetHashCode();
+        }
+    }
+}