Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Mobile/UI/MobileControls/CustomValidator.cs

@@ -0,0 +1,127 @@
+//------------------------------------------------------------------------------
+// <copyright file="CustomValidator.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Web.UI.WebControls;
+using WebCntrls = System.Web.UI.WebControls;
+using System.Security.Permissions;
+
+namespace System.Web.UI.MobileControls
+{
+    /*
+     * Mobile CustomValidator class.
+     * The CustomValidator provides the ability to easily write custom server
+     * validation logic.  A user-defined function is called via a single-cast
+     * delegate to provide server-side custom validation.
+     *
+     * Copyright (c) 2000 Microsoft Corporation
+     */
+    /// <include file='doc\CustomValidator.uex' path='docs/doc[@for="CustomValidator"]/*' />
+    [
+        DefaultEvent("ServerValidate"),
+        ToolboxData("<{0}:CustomValidator runat=\"server\" ErrorMessage=\"CustomValidator\"></{0}:CustomValidator>"),
+        ToolboxItem("System.Web.UI.Design.WebControlToolboxItem, " + AssemblyRef.SystemDesign)
+    ]
+    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
+    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
+    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
+    public class CustomValidator : BaseValidator
+    {
+        private WebCntrls.CustomValidator _webCustomValidator;
+
+        // Static objects to identify individual events stored in Events
+        // property.
+        private static readonly Object EventServerValidate = new Object();
+
+        /// <include file='doc\CustomValidator.uex' path='docs/doc[@for="CustomValidator.CreateWebValidator"]/*' />
+        protected override WebCntrls.BaseValidator CreateWebValidator()
+        {
+            _webCustomValidator = new WebCntrls.CustomValidator();
+
+            // Adding wrapper event handlers for event properties exposed by
+            // the aggregated control.  For more details about the mechanism,
+            // please see the comment in the constructor of
+            // Mobile.UI.AdRotator.
+            ServerValidateEventHandler eventHandler =
+                new ServerValidateEventHandler(WebServerValidate);
+
+            _webCustomValidator.ServerValidate += eventHandler;
+
+            return _webCustomValidator;
+        }
+
+        ////////////////////////////////////////////////////////////////////////
+        // Mimic the properties exposed in the original CustomValidator.
+        ////////////////////////////////////////////////////////////////////////
+
+        /// <include file='doc\CustomValidator.uex' path='docs/doc[@for="CustomValidator.ServerValidate"]/*' />
+        [
+            Bindable(false),
+            DefaultValue(null),
+            MobileSysDescription(SR.CustomValidator_OnServerValidate)
+        ]
+        public event ServerValidateEventHandler ServerValidate
+        {
+            add
+            {
+                Events.AddHandler(EventServerValidate, value);
+            }
+            remove
+            {
+                Events.RemoveHandler(EventServerValidate, value);
+            }
+        }
+
+        // protected method (which can be overridden by subclasses) for
+        // raising user events
+        /// <include file='doc\CustomValidator.uex' path='docs/doc[@for="CustomValidator.OnServerValidate"]/*' />
+        protected virtual bool OnServerValidate(String value)
+        {
+            ServerValidateEventHandler handler = (ServerValidateEventHandler)Events[EventServerValidate];
+            if (handler != null) 
+            {
+                ServerValidateEventArgs args = new ServerValidateEventArgs(value, true);
+                handler(this, args);
+                return args.IsValid;
+            }
+            else 
+            {
+                return true;
+            }
+        }
+
+        private void WebServerValidate(Object source, ServerValidateEventArgs e)
+        {
+            // Invoke user events for further manipulation specified by user
+            Debug.Assert(e != null, "Unexpected null parameter!");
+            e.IsValid = OnServerValidate(e.Value);
+        }
+
+        /// <include file='doc\CustomValidator.uex' path='docs/doc[@for="CustomValidator.EvaluateIsValid"]/*' />
+        protected override bool EvaluateIsValid()
+        {
+            return EvaluateIsValidInternal();
+        }
+
+        /////////////////////////////////////////////////////////////////////
+        // Helper function adopted from WebForms CustomValidator
+        /////////////////////////////////////////////////////////////////////
+
+        /// <include file='doc\CustomValidator.uex' path='docs/doc[@for="CustomValidator.ControlPropertiesValid"]/*' />
+        protected override bool ControlPropertiesValid()
+        {
+            // Need to override the BaseValidator implementation, because for
+            // CustomValidator, it is fine for ControlToValidate to be blank.
+            String controlToValidate = ControlToValidate;
+            if (controlToValidate.Length > 0)
+            {
+                return base.ControlPropertiesValid();
+            }
+            return true;
+        }
+    }
+}