From 5be01ee65b987ef17e6418fbff5f161ed0f5cc87 Mon Sep 17 00:00:00 2001
From: Jon Skeet <jonskeet@google.com>
Date: Mon, 10 Aug 2015 08:47:07 +0100
Subject: Implement ICollection.CopyTo (using Array) for MapField views.

---
 csharp/src/Google.Protobuf/Collections/MapField.cs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'csharp/src/Google.Protobuf/Collections')

diff --git a/csharp/src/Google.Protobuf/Collections/MapField.cs b/csharp/src/Google.Protobuf/Collections/MapField.cs
index 6dcdc100..004ff54b 100644
--- a/csharp/src/Google.Protobuf/Collections/MapField.cs
+++ b/csharp/src/Google.Protobuf/Collections/MapField.cs
@@ -735,7 +735,18 @@ namespace Google.Protobuf.Collections
 
             public void CopyTo(Array array, int index)
             {
-                throw new NotImplementedException();
+                if (index < 0)
+                {
+                    throw new ArgumentOutOfRangeException("arrayIndex");
+                }
+                if (index + Count >= array.Length)
+                {
+                    throw new ArgumentException("Not enough space in the array", "array");
+                }
+                foreach (var item in this)
+                {
+                    array.SetValue(item, index++);
+                }
             }
         }
     }
-- 
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