1 files changed, 39 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Runtime/InteropServices/Expando/IExpando.cs b/src/mscorlib/src/System/Runtime/InteropServices/Expando/IExpando.cs
new file mode 100644
index 0000000000..62b65d1aff
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+++ b/src/mscorlib/src/System/Runtime/InteropServices/Expando/IExpando.cs
@@ -0,0 +1,39 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//
+// IExpando is an interface which allows Objects implemeningt this interface 
+//    support the ability to modify the object by adding and removing members, 
+//    represented by MemberInfo objects.
+//
+//
+// The IExpando Interface.
+namespace System.Runtime.InteropServices.Expando {
+    
+    using System;
+    using System.Reflection;
+
+    [Guid("AFBF15E6-C37C-11d2-B88E-00A0C9B471B8")]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public interface IExpando : IReflect
+    {
+        // Add a new Field to the reflection object.  The field has
+        // name as its name.
+        FieldInfo AddField(String name);
+
+        // Add a new Property to the reflection object.  The property has
+        // name as its name.
+        PropertyInfo AddProperty(String name);
+
+        // Add a new Method to the reflection object.  The method has 
+        // name as its name and method is a delegate
+        // to the method.  
+        MethodInfo AddMethod(String name, Delegate method);
+
+        // Removes the specified member.
+        void RemoveMember(MemberInfo m);
+    }
+}