-Fixed KeyValuePair case insensitive deserializing

-Fixed KeyValuePair not using contract resolver for property names when serializing

Src/Newtonsoft.Json.Tests/Properties/AssemblyInfo.cs

@@ -72,5 +72,5 @@ using System.Security;
 // by using the '*' as shown below:
 [assembly: AssemblyVersion("4.5.0.0")]
 #if !PocketPC
-[assembly: AssemblyFileVersion("4.5.6.15009")]
+[assembly: AssemblyFileVersion("4.5.7.15030")]
 #endif

Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs

@@ -6496,6 +6496,33 @@ Parameter name: value",
       var actual = JsonConvert.DeserializeObject<MyType>(@"{ ""MyProperty"":{""Key"":""Y""}}");
       Assert.AreEqual("X", actual.MyProperty["Key"]);
     }
+
+    [Test]
+    public void DeserializeCaseInsensitiveKeyValuePairConverter()
+    {
+      KeyValuePair<int, string> result =
+        JsonConvert.DeserializeObject<KeyValuePair<int, string>>(
+          "{key: 123, \"VALUE\": \"test value\"}"
+          );
+
+      Assert.AreEqual(123, result.Key);
+      Assert.AreEqual("test value", result.Value);
+    }
+
+    [Test]
+    public void SerializeKeyValuePairConverterWithCamelCase()
+    {
+      string json =
+        JsonConvert.SerializeObject(new KeyValuePair<int, string>(123, "test value"), Formatting.Indented, new JsonSerializerSettings
+          {
+            ContractResolver = new CamelCasePropertyNamesContractResolver()
+          });
+
+      Assert.AreEqual(@"{
+  ""key"": 123,
+  ""value"": ""test value""
+}", json);
+    }
   }
 
 #if !(SILVERLIGHT || NETFX_CORE || PORTABLE)

Src/Newtonsoft.Json/Converters/KeyValuePairConverter.cs

@@ -25,6 +25,7 @@
 
 using System;
 using System.Collections.Generic;
+using Newtonsoft.Json.Serialization;
 using Newtonsoft.Json.Utilities;
 using System.Reflection;
 
@@ -35,6 +36,9 @@ namespace Newtonsoft.Json.Converters
   /// </summary>
   public class KeyValuePairConverter : JsonConverter
   {
+    private const string KeyName = "Key";
+    private const string ValueName = "Value";
+
     /// <summary>
     /// Writes the JSON representation of the object.
     /// </summary>
@@ -44,13 +48,16 @@ namespace Newtonsoft.Json.Converters
     public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
     {
       Type t = value.GetType();
-      PropertyInfo keyProperty = t.GetProperty("Key");
-      PropertyInfo valueProperty = t.GetProperty("Value");
+      PropertyInfo keyProperty = t.GetProperty(KeyName);
+      PropertyInfo valueProperty = t.GetProperty(ValueName);
+
+      DefaultContractResolver resolver = serializer.ContractResolver as DefaultContractResolver;
 
       writer.WriteStartObject();
-      writer.WritePropertyName("Key");
+
+      writer.WritePropertyName((resolver != null) ? resolver.GetResolvedPropertyName(KeyName) : KeyName);
       serializer.Serialize(writer, ReflectionUtils.GetMemberValue(keyProperty, value));
-      writer.WritePropertyName("Value");
+      writer.WritePropertyName((resolver != null) ? resolver.GetResolvedPropertyName(ValueName) : ValueName);
       serializer.Serialize(writer, ReflectionUtils.GetMemberValue(valueProperty, value));
       writer.WriteEndObject();
     }
@@ -90,19 +97,20 @@ namespace Newtonsoft.Json.Converters
 
       while (reader.TokenType == JsonToken.PropertyName)
       {
-        switch (reader.Value.ToString())
+        string propertyName = reader.Value.ToString();
+        if (string.Equals(propertyName, KeyName, StringComparison.OrdinalIgnoreCase))
         {
-          case "Key":
-            reader.Read();
-            key = serializer.Deserialize(reader, keyType);
-            break;
-          case "Value":
-            reader.Read();
-            value = serializer.Deserialize(reader, valueType);
-            break;
-          default:
-            reader.Skip();
-            break;
+          reader.Read();
+          key = serializer.Deserialize(reader, keyType);
+        }
+        else if (string.Equals(propertyName, ValueName, StringComparison.OrdinalIgnoreCase))
+        {
+          reader.Read();
+          value = serializer.Deserialize(reader, valueType);
+        }
+        else
+        {
+          reader.Skip();
         }
 
         reader.Read();

Src/Newtonsoft.Json/Properties/AssemblyInfo.cs

@@ -90,7 +90,7 @@ using System.Security;
 // by using the '*' as shown below:
 [assembly: AssemblyVersion("4.5.0.0")]
 #if !PocketPC
-[assembly: AssemblyFileVersion("4.5.6.15009")]
+[assembly: AssemblyFileVersion("4.5.7.15030")]
 #endif
 
 [assembly: CLSCompliant(true)]