1 files changed, 7 insertions, 4 deletions
diff --git a/src/csharp/Grpc.Core/Method.cs b/src/csharp/Grpc.Core/Method.cs
index 4f97eeef37..156e780c7d 100644
--- a/src/csharp/Grpc.Core/Method.cs
+++ b/src/csharp/Grpc.Core/Method.cs
@@ -35,12 +35,15 @@ using System;
 
 namespace Grpc.Core
 {
+    /// <summary>
+    /// Method types supported by gRPC.
+    /// </summary>
     public enum MethodType
     {
-        Unary,
-        ClientStreaming,
-        ServerStreaming,
-        DuplexStreaming
+        Unary,  // Unary request, unary response.
+        ClientStreaming,  // Streaming request, unary response.
+        ServerStreaming,  // Unary request, streaming response.
+        DuplexStreaming  // Streaming request, streaming response.
     }
 
     /// <summary>