Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,62 @@
+//------------------------------------------------------------------------------
+// <copyright file="DataControlButton.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.Drawing;
+    using System.Web.Util;
+
+
+    /// <devdoc>
+    ///  Derived version of Button used within a DataControl.
+    /// </devdoc>
+    [SupportsEventValidation]
+    internal sealed class DataControlButton : Button {
+        
+        IPostBackContainer _container;
+
+        internal DataControlButton(IPostBackContainer container) {
+            _container = container;
+        }
+
+        public override bool CausesValidation {
+            get {
+                return false;
+            }
+            set {
+                throw new NotSupportedException(SR.GetString(SR.CannotSetValidationOnDataControlButtons));
+            }
+        }
+        
+        public override bool UseSubmitBehavior {
+            get {
+                return false;
+            }
+            set {
+                throw new NotSupportedException();
+            }
+        }
+        
+        protected sealed override PostBackOptions GetPostBackOptions() {
+            PostBackOptions options;
+
+            if (_container != null) {
+                options = _container.GetPostBackOptions(this);
+                
+                if (Page != null) {
+                    options.ClientSubmit = true;
+                }
+            }
+            else {
+                options = base.GetPostBackOptions();
+            }
+
+            return options;
+        }
+    }
+}
+