Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,105 @@
+//------------------------------------------------------------------------------
+// <copyright file="RouteParameter.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.ComponentModel;
+    using System.Data;
+    using System.Security.Permissions;
+    using System.Web.Routing;
+
+    /// <devdoc>
+    /// Represents a Parameter that gets its value from the application's route data.
+    /// </devdoc>
+    [
+    DefaultProperty("RouteKey"),
+    ]
+    public class RouteParameter : Parameter {
+
+        /// <devdoc>
+        /// Creates an instance of the RouteParameter class.
+        /// </devdoc>
+        public RouteParameter() {
+        }
+
+        /// <devdoc>
+        /// Creates an instance of the RouteParameter class with the specified parameter name and request field.
+        /// </devdoc>
+        public RouteParameter(string name, string routeKey) : base(name) {
+            RouteKey = routeKey;
+        }
+
+        /// <devdoc>
+        /// Creates an instance of the routeParameter class with the specified parameter name, database type, and
+        /// request field.
+        /// </devdoc>
+        public RouteParameter(string name, DbType dbType, string routeKey)
+            : base(name, dbType) {
+            RouteKey = routeKey;
+        }
+
+
+        /// <devdoc>
+        /// Creates an instance of the RouteParameter class with the specified parameter name, type, and request field.
+        /// </devdoc>
+        public RouteParameter(string name, TypeCode type, string routeKey) : base(name, type) {
+            RouteKey = routeKey;
+        }
+
+        /// <devdoc>
+        /// Used to clone a parameter.
+        /// </devdoc>
+        protected RouteParameter(RouteParameter original) : base(original) {
+            RouteKey = original.RouteKey;
+        }
+
+        /// <devdoc>
+        /// The name of the route value to get the value from.
+        /// </devdoc>
+        [
+        DefaultValue(""),
+        WebCategory("Parameter"),
+        WebSysDescription(SR.RouteParameter_RouteKey),
+        ]
+        public string RouteKey {
+            get {
+                object o = ViewState["RouteKey"];
+                if (o == null)
+                    return String.Empty;
+                return (string)o;
+            }
+            set {
+                if (RouteKey != value) {
+                    ViewState["RouteKey"] = value;
+                    OnParameterChanged();
+                }
+            }
+        }
+
+        /// <devdoc>
+        /// Creates a new RouteParameter that is a copy of this RouteParameter.
+        /// </devdoc>
+        protected override Parameter Clone() {
+            return new RouteParameter(this);
+        }
+
+        /// <devdoc>
+        /// Returns the updated value of the parameter.
+        /// </devdoc>
+        protected internal override object Evaluate(HttpContext context, Control control) {
+            if (context == null || context.Request == null || control == null) {
+                return null;
+            }
+            RouteData routeData = control.Page.RouteData;
+            if (routeData == null) {
+                return null;
+            }
+            return routeData.Values[RouteKey];
+        }
+    }
+}
+