diff --git a/modules/swagger-codegen/src/test/resources/2_0/petstore.json b/modules/swagger-codegen/src/test/resources/2_0/petstore.json
index dfd7937242e2..9db6d617ec0c 100644
--- a/modules/swagger-codegen/src/test/resources/2_0/petstore.json
+++ b/modules/swagger-codegen/src/test/resources/2_0/petstore.json
@@ -1375,6 +1375,59 @@
           "type" : "string"
         }
       }
+    },
+    "format_test" : {
+      "type" : "object",
+      "required": [
+        "number"
+      ],
+      "properties" : {
+        "integer" : {
+          "type": "integer"
+        },
+        "int32" : {
+          "type": "integer",
+          "format": "int32"
+        },
+        "int64" : {
+          "type": "integer",
+          "format": "int64"
+        },
+        "number" : {
+          "type": "number"
+        },
+        "float" : {
+          "type": "number",
+          "format": "float"
+        },
+        "double" : {
+          "type": "number",
+          "format": "double"
+        },
+        "string" : {
+          "type": "string"
+        },
+        "byte" : {
+          "type": "string",
+          "format": "byte"
+        },
+        "binary" : {
+          "type": "string",
+          "format": "binary"
+        },
+        "date" : {
+          "type": "string",
+          "format": "date"
+        },
+        "dateTime" : {
+          "type": "string",
+          "format": "date-time"
+        },
+        "dateTime" : {
+          "type": "string",
+          "format": "password"
+        }
+      }
     }
   }
 }
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/FormatTest.cs b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/FormatTest.cs
new file mode 100644
index 000000000000..2b4058820176
--- /dev/null
+++ b/samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Model/FormatTest.cs
@@ -0,0 +1,291 @@
+using System;
+using System.Linq;
+using System.IO;
+using System.Text;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace IO.Swagger.Model
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class FormatTest :  IEquatable<FormatTest>
+    { 
+    
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FormatTest" /> class.
+        /// Initializes a new instance of the <see cref="FormatTest" />class.
+        /// </summary>
+        /// <param name="Integer">Integer.</param>
+        /// <param name="Int32">Int32.</param>
+        /// <param name="Int64">Int64.</param>
+        /// <param name="Number">Number (required).</param>
+        /// <param name="_Float">_Float.</param>
+        /// <param name="_Double">_Double.</param>
+        /// <param name="_String">_String.</param>
+        /// <param name="_Byte">_Byte.</param>
+        /// <param name="Binary">Binary.</param>
+        /// <param name="Date">Date.</param>
+        /// <param name="DateTime">DateTime.</param>
+
+        public FormatTest(int? Integer = null, int? Int32 = null, long? Int64 = null, double? Number = null, float? _Float = null, double? _Double = null, string _String = null, ByteArray _Byte = null, byte[] Binary = null, DateTime? Date = null, string DateTime = null)
+        {
+            // to ensure "Number" is required (not null)
+            if (Number == null)
+            {
+                throw new InvalidDataException("Number is a required property for FormatTest and cannot be null");
+            }
+            else
+            {
+                this.Number = Number;
+            }
+            this.Integer = Integer;
+            this.Int32 = Int32;
+            this.Int64 = Int64;
+            this._Float = _Float;
+            this._Double = _Double;
+            this._String = _String;
+            this._Byte = _Byte;
+            this.Binary = Binary;
+            this.Date = Date;
+            this.DateTime = DateTime;
+            
+        }
+        
+    
+        /// <summary>
+        /// Gets or Sets Integer
+        /// </summary>
+        [DataMember(Name="integer", EmitDefaultValue=false)]
+        public int? Integer { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets Int32
+        /// </summary>
+        [DataMember(Name="int32", EmitDefaultValue=false)]
+        public int? Int32 { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets Int64
+        /// </summary>
+        [DataMember(Name="int64", EmitDefaultValue=false)]
+        public long? Int64 { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets Number
+        /// </summary>
+        [DataMember(Name="number", EmitDefaultValue=false)]
+        public double? Number { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets _Float
+        /// </summary>
+        [DataMember(Name="float", EmitDefaultValue=false)]
+        public float? _Float { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets _Double
+        /// </summary>
+        [DataMember(Name="double", EmitDefaultValue=false)]
+        public double? _Double { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets _String
+        /// </summary>
+        [DataMember(Name="string", EmitDefaultValue=false)]
+        public string _String { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets _Byte
+        /// </summary>
+        [DataMember(Name="byte", EmitDefaultValue=false)]
+        public ByteArray _Byte { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets Binary
+        /// </summary>
+        [DataMember(Name="binary", EmitDefaultValue=false)]
+        public byte[] Binary { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets Date
+        /// </summary>
+        [DataMember(Name="date", EmitDefaultValue=false)]
+        public DateTime? Date { get; set; }
+    
+        /// <summary>
+        /// Gets or Sets DateTime
+        /// </summary>
+        [DataMember(Name="dateTime", EmitDefaultValue=false)]
+        public string DateTime { get; set; }
+    
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class FormatTest {\n");
+            sb.Append("  Integer: ").Append(Integer).Append("\n");
+            sb.Append("  Int32: ").Append(Int32).Append("\n");
+            sb.Append("  Int64: ").Append(Int64).Append("\n");
+            sb.Append("  Number: ").Append(Number).Append("\n");
+            sb.Append("  _Float: ").Append(_Float).Append("\n");
+            sb.Append("  _Double: ").Append(_Double).Append("\n");
+            sb.Append("  _String: ").Append(_String).Append("\n");
+            sb.Append("  _Byte: ").Append(_Byte).Append("\n");
+            sb.Append("  Binary: ").Append(Binary).Append("\n");
+            sb.Append("  Date: ").Append(Date).Append("\n");
+            sb.Append("  DateTime: ").Append(DateTime).Append("\n");
+            
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+  
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            // credit: http://stackoverflow.com/a/10454552/677735
+            return this.Equals(obj as FormatTest);
+        }
+
+        /// <summary>
+        /// Returns true if FormatTest instances are equal
+        /// </summary>
+        /// <param name="other">Instance of FormatTest to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(FormatTest other)
+        {
+            // credit: http://stackoverflow.com/a/10454552/677735
+            if (other == null)
+                return false;
+
+            return 
+                (
+                    this.Integer == other.Integer ||
+                    this.Integer != null &&
+                    this.Integer.Equals(other.Integer)
+                ) && 
+                (
+                    this.Int32 == other.Int32 ||
+                    this.Int32 != null &&
+                    this.Int32.Equals(other.Int32)
+                ) && 
+                (
+                    this.Int64 == other.Int64 ||
+                    this.Int64 != null &&
+                    this.Int64.Equals(other.Int64)
+                ) && 
+                (
+                    this.Number == other.Number ||
+                    this.Number != null &&
+                    this.Number.Equals(other.Number)
+                ) && 
+                (
+                    this._Float == other._Float ||
+                    this._Float != null &&
+                    this._Float.Equals(other._Float)
+                ) && 
+                (
+                    this._Double == other._Double ||
+                    this._Double != null &&
+                    this._Double.Equals(other._Double)
+                ) && 
+                (
+                    this._String == other._String ||
+                    this._String != null &&
+                    this._String.Equals(other._String)
+                ) && 
+                (
+                    this._Byte == other._Byte ||
+                    this._Byte != null &&
+                    this._Byte.Equals(other._Byte)
+                ) && 
+                (
+                    this.Binary == other.Binary ||
+                    this.Binary != null &&
+                    this.Binary.Equals(other.Binary)
+                ) && 
+                (
+                    this.Date == other.Date ||
+                    this.Date != null &&
+                    this.Date.Equals(other.Date)
+                ) && 
+                (
+                    this.DateTime == other.DateTime ||
+                    this.DateTime != null &&
+                    this.DateTime.Equals(other.DateTime)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            // credit: http://stackoverflow.com/a/263416/677735
+            unchecked // Overflow is fine, just wrap
+            {
+                int hash = 41;
+                // Suitable nullity checks etc, of course :)
+                
+                if (this.Integer != null)
+                    hash = hash * 59 + this.Integer.GetHashCode();
+                
+                if (this.Int32 != null)
+                    hash = hash * 59 + this.Int32.GetHashCode();
+                
+                if (this.Int64 != null)
+                    hash = hash * 59 + this.Int64.GetHashCode();
+                
+                if (this.Number != null)
+                    hash = hash * 59 + this.Number.GetHashCode();
+                
+                if (this._Float != null)
+                    hash = hash * 59 + this._Float.GetHashCode();
+                
+                if (this._Double != null)
+                    hash = hash * 59 + this._Double.GetHashCode();
+                
+                if (this._String != null)
+                    hash = hash * 59 + this._String.GetHashCode();
+                
+                if (this._Byte != null)
+                    hash = hash * 59 + this._Byte.GetHashCode();
+                
+                if (this.Binary != null)
+                    hash = hash * 59 + this.Binary.GetHashCode();
+                
+                if (this.Date != null)
+                    hash = hash * 59 + this.Date.GetHashCode();
+                
+                if (this.DateTime != null)
+                    hash = hash * 59 + this.DateTime.GetHashCode();
+                
+                return hash;
+            }
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.csproj b/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.csproj
index 83c4f19ab17e..67c8e73b6e55 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.csproj
+++ b/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.csproj
@@ -66,6 +66,10 @@
     <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\Name.cs" />
     <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\Task.cs" />
     <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\Model200Response.cs" />
+    <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\Animal.cs" />
+    <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\Cat.cs" />
+    <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\Dog.cs" />
+    <Compile Include="Lib\SwaggerClient\src\main\csharp\IO\Swagger\Model\FormatTest.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
diff --git a/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs b/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs
index c507559e57d2..cc1b6b0b56ad 100644
--- a/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs
+++ b/samples/client/petstore/csharp/SwaggerClientTest/SwaggerClientTest.userprefs
@@ -2,7 +2,7 @@
   <MonoDevelop.Ide.Workspace ActiveConfiguration="Debug" />
   <MonoDevelop.Ide.Workbench ActiveDocument="TestPet.cs">
     <Files>
-      <File FileName="TestPet.cs" Line="23" Column="17" />
+      <File FileName="TestPet.cs" Line="30" Column="21" />
       <File FileName="TestOrder.cs" Line="1" Column="1" />
     </Files>
   </MonoDevelop.Ide.Workbench>