Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Xml/System/Xml/Schema/XmlSchemaSubstitutionGroup.cs

@@ -0,0 +1,38 @@
+//------------------------------------------------------------------------------
+// <copyright file="XmlSchemaSubstitutionGroup.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">[....]</owner>                                                                 
+//------------------------------------------------------------------------------
+
+namespace System.Xml.Schema {
+
+    using System.Collections;
+    using System.Xml.Serialization;
+
+    internal class XmlSchemaSubstitutionGroup : XmlSchemaObject {
+        ArrayList membersList = new ArrayList();
+        XmlQualifiedName examplar = XmlQualifiedName.Empty;
+
+        [XmlIgnore]
+        internal ArrayList Members {
+            get { return membersList; }
+        } 
+
+        [XmlIgnore]
+        internal XmlQualifiedName Examplar {
+            get { return examplar; }
+            set { examplar = value; }
+        }
+    }
+
+    internal class XmlSchemaSubstitutionGroupV1Compat : XmlSchemaSubstitutionGroup {
+        XmlSchemaChoice choice = new XmlSchemaChoice();
+
+        [XmlIgnore]
+        internal XmlSchemaChoice Choice {
+            get { return choice; }
+        }          
+
+    }
+}