diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CSharpClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CSharpClientCodegen.java
index be8b4b74781..f69ddd16d35 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CSharpClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CSharpClientCodegen.java
@@ -7,9 +7,7 @@ import io.swagger.codegen.DefaultCodegen;
 import io.swagger.codegen.SupportingFile;
 import io.swagger.codegen.CodegenProperty;
 import io.swagger.codegen.CodegenModel;
-import io.swagger.models.properties.ArrayProperty;
-import io.swagger.models.properties.MapProperty;
-import io.swagger.models.properties.Property;
+import io.swagger.models.properties.*;
 import io.swagger.codegen.CliOption;
 
 import java.io.File;
@@ -300,4 +298,51 @@ public class CSharpClientCodegen extends DefaultCodegen implements CodegenConfig
         }
         return objs;
     }
+
+    /**
+     * Return the default value of the property
+     *
+     * @param p Swagger property object
+     * @return string presentation of the default value of the property
+     */
+    @Override
+    public String toDefaultValue(Property p) {
+        if (p instanceof StringProperty) {
+            StringProperty dp = (StringProperty) p;
+            if (dp.getDefault() != null) {
+                return "\"" + dp.getDefault().toString() + "\"";
+            }
+        } else if (p instanceof BooleanProperty) {
+            BooleanProperty dp = (BooleanProperty) p;
+            if (dp.getDefault() != null) {
+                return dp.getDefault().toString();
+            }
+        } else if (p instanceof DateProperty) {
+            // TODO
+        } else if (p instanceof DateTimeProperty) {
+            // TODO
+        } else if (p instanceof DoubleProperty) {
+            DoubleProperty dp = (DoubleProperty) p;
+            if (dp.getDefault() != null) {
+                return dp.getDefault().toString();
+            }
+        } else if (p instanceof FloatProperty) {
+            FloatProperty dp = (FloatProperty) p;
+            if (dp.getDefault() != null) {
+                return dp.getDefault().toString();
+            }
+        } else if (p instanceof IntegerProperty) {
+            IntegerProperty dp = (IntegerProperty) p;
+            if (dp.getDefault() != null) {
+                return dp.getDefault().toString();
+            }
+        } else if (p instanceof LongProperty) {
+            LongProperty dp = (LongProperty) p;
+            if (dp.getDefault() != null) {
+                return dp.getDefault().toString();
+            }
+        }
+
+        return null;
+    }
 }
diff --git a/modules/swagger-codegen/src/main/resources/csharp/model.mustache b/modules/swagger-codegen/src/main/resources/csharp/model.mustache
index 7b7f1a6aea0..faff8d20329 100644
--- a/modules/swagger-codegen/src/main/resources/csharp/model.mustache
+++ b/modules/swagger-codegen/src/main/resources/csharp/model.mustache
@@ -18,6 +18,15 @@ namespace {{packageName}}.Model
     [DataContract]
     public class {{classname}} : IEquatable<{{classname}}>{{#parent}}, {{{parent}}}{{/parent}}
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="{{classname}}" /> class.
+        /// </summary>
+        public {{classname}}()
+        {
+            {{#vars}}{{#defaultValue}}this.{{name}} = {{{defaultValue}}};
+            {{/defaultValue}}{{/vars}}
+        }
+
         {{#vars}}
         /// <summary>
         /// {{^description}}Gets or Sets {{{name}}}{{/description}}{{#description}}{{{description}}}{{/description}}
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Category.cs b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Category.cs
index 7d3f0936dce..d9cb6b21005 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Category.cs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Category.cs
@@ -16,6 +16,14 @@ namespace IO.Swagger.Model
     [DataContract]
     public class Category : IEquatable<Category>
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Category" /> class.
+        /// </summary>
+        public Category()
+        {
+            
+        }
+
         
         /// <summary>
         /// Gets or Sets Id
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Order.cs b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Order.cs
index 1f786769d55..2191707bd09 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Order.cs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Order.cs
@@ -16,6 +16,14 @@ namespace IO.Swagger.Model
     [DataContract]
     public class Order : IEquatable<Order>
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Order" /> class.
+        /// </summary>
+        public Order()
+        {
+            
+        }
+
         
         /// <summary>
         /// Gets or Sets Id
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Pet.cs b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Pet.cs
index d85d8a8be7e..10c44fb46a7 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Pet.cs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Pet.cs
@@ -16,6 +16,14 @@ namespace IO.Swagger.Model
     [DataContract]
     public class Pet : IEquatable<Pet>
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pet" /> class.
+        /// </summary>
+        public Pet()
+        {
+            
+        }
+
         
         /// <summary>
         /// Gets or Sets Id
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Tag.cs b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Tag.cs
index 8b2cbe08474..93210505bf0 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Tag.cs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/Tag.cs
@@ -16,6 +16,14 @@ namespace IO.Swagger.Model
     [DataContract]
     public class Tag : IEquatable<Tag>
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Tag" /> class.
+        /// </summary>
+        public Tag()
+        {
+            
+        }
+
         
         /// <summary>
         /// Gets or Sets Id
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/User.cs b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/User.cs
index d2c1e3a46eb..1fbd17da993 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/User.cs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/User.cs
@@ -16,6 +16,14 @@ namespace IO.Swagger.Model
     [DataContract]
     public class User : IEquatable<User>
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="User" /> class.
+        /// </summary>
+        public User()
+        {
+            
+        }
+
         
         /// <summary>
         /// Gets or Sets Id
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs b/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs
index da9e64e0c90..ab3a8ae3ac4 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs
@@ -1,30 +1,11 @@
 <Properties StartupItem="SwaggerClientTest.csproj">
   <MonoDevelop.Ide.Workspace ActiveConfiguration="Debug" />
-  <MonoDevelop.Ide.Workbench ActiveDocument="TestPet.cs">
+  <MonoDevelop.Ide.Workbench ActiveDocument="Lib/SwaggerClient/src/main/csharp/IO/Swagger/Api/PetApi.cs">
     <Files>
       <File FileName="TestConfiguration.cs" Line="17" Column="33" />
-      <File FileName="Lib/SwaggerClient/src/main/csharp/IO/Swagger/Api/PetApi.cs" Line="523" Column="49" />
-      <File FileName="TestPet.cs" Line="87" Column="4" />
-      <File FileName="Lib/SwaggerClient/src/main/csharp/IO/Swagger/Client/Configuration.cs" Line="1" Column="1" />
-      <File FileName="TestApiClient.cs" Line="22" Column="4" />
+      <File FileName="TestPet.cs" Line="81" Column="17" />
+      <File FileName="Lib/SwaggerClient/src/main/csharp/IO/Swagger/Api/PetApi.cs" Line="12" Column="18" />
     </Files>
-    <Pads>
-      <Pad Id="MonoDevelop.NUnit.TestPad">
-        <State name="__root__">
-          <Node name="SwaggerClientTest" expanded="True">
-            <Node name="SwaggerClientTest" expanded="True">
-              <Node name="SwaggerClient" expanded="True">
-                <Node name="TestPet" expanded="True">
-                  <Node name="TestPet" expanded="True">
-                    <Node name="TestGetPetByIdAsyncWithHttpInfo" selected="True" />
-                  </Node>
-                </Node>
-              </Node>
-            </Node>
-          </Node>
-        </State>
-      </Pad>
-    </Pads>
   </MonoDevelop.Ide.Workbench>
   <MonoDevelop.Ide.DebuggingService.Breakpoints>
     <BreakpointStore />
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll b/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll
index eb5aee17989..a438e103954 100755
Binary files a/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll and b/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll differ
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll.mdb b/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll.mdb
index 073b96f23b3..79928c469ee 100644
Binary files a/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll.mdb and b/samples/client/petstore/csharp/SwaggerClientTest/bin/Debug/SwaggerClientTest.dll.mdb differ
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll b/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll
index eb5aee17989..a438e103954 100755
Binary files a/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll and b/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll differ
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll.mdb b/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll.mdb
index 073b96f23b3..79928c469ee 100644
Binary files a/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll.mdb and b/samples/client/petstore/csharp/SwaggerClientTest/obj/Debug/SwaggerClientTest.dll.mdb differ