diff --git a/csharp/ApprovalTest.cs b/csharp/ApprovalTest.cs
index 5334147e..ff34b37d 100644
--- a/csharp/ApprovalTest.cs
+++ b/csharp/ApprovalTest.cs
@@ -19,7 +19,7 @@ namespace csharp
             Console.SetOut(new StringWriter(fakeoutput));
             Console.SetIn(new StringReader("a\n"));
 
-            Program.Main(new string[] { });
+            appGUI.Main(new string[] { });
             var output = fakeoutput.ToString();
 
             Approvals.Verify(output);
diff --git a/csharp/Program.cs b/csharp/Program.cs
index bcf3bf2f..63412714 100644
--- a/csharp/Program.cs
+++ b/csharp/Program.cs
@@ -5,52 +5,6 @@ namespace csharp
 {
     public class Program
     {
-        public static void Main(string[] args)
-        {
-            Console.WriteLine("OMGHAI!");
 
-            List<Item> Items = new List<Item>{
-                new Item {Name = "+5 Dexterity Vest", SellIn = 10, Quality = 20},
-                new Item {Name = "Aged Brie", SellIn = 2, Quality = 0},
-                new Item {Name = "Elixir of the Mongoose", SellIn = 5, Quality = 7},
-                new Item {Name = "Sulfuras, Hand of Ragnaros", SellIn = 0, Quality = 80},
-                new Item {Name = "Sulfuras, Hand of Ragnaros", SellIn = -1, Quality = 80},
-                new Item
-                {
-                    Name = "Backstage passes to a TAFKAL80ETC concert",
-                    SellIn = 15,
-                    Quality = 20
-                },
-                new Item
-                {
-                    Name = "Backstage passes to a TAFKAL80ETC concert",
-                    SellIn = 10,
-                    Quality = 49
-                },
-                new Item
-                {
-                    Name = "Backstage passes to a TAFKAL80ETC concert",
-                    SellIn = 5,
-                    Quality = 49
-                },
-				// this conjured item does not work properly yet
-				new Item {Name = "Conjured Mana Cake", SellIn = 3, Quality = 6}
-            };
-
-            var app = new GildedRose(Items);
-
-
-            for (var i = 0; i < 31; i++)
-            {
-                Console.WriteLine("-------- day " + i + " --------");
-                Console.WriteLine("name, sellIn, quality");
-                for (var j = 0; j < Items.Count; j++)
-                {
-                    System.Console.WriteLine(Items[j]);
-                }
-                Console.WriteLine("");
-                app.UpdateQuality();
-            }
-        }
     }
 }
diff --git a/csharp/appGUI.cs b/csharp/appGUI.cs
new file mode 100644
index 00000000..db30f615
--- /dev/null
+++ b/csharp/appGUI.cs
@@ -0,0 +1,169 @@
+using System.Windows.Forms;
+using System.Drawing.Drawing2D;
+using System;
+using System.Collections.Generic;
+using csharp;
+using System.Data;
+
+public partial class appGUI : Form
+{
+    private DataGridView dataGridView1;
+    private DataGridViewTextBoxColumn Day;
+    private DataGridViewTextBoxColumn itemName;
+    private DataGridViewTextBoxColumn SellIn;
+    private DataGridViewTextBoxColumn Quality;
+    private Button button1;
+
+    public appGUI()
+    {
+        InitializeComponent();
+    }
+
+    private void InitializeComponent()
+    {
+            this.dataGridView1 = new System.Windows.Forms.DataGridView();
+            this.button1 = new System.Windows.Forms.Button();
+            this.Day = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.itemName = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.SellIn = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.Quality = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // dataGridView1
+            // 
+            this.dataGridView1.AllowUserToOrderColumns = true;
+            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
+            this.Day,
+            this.itemName,
+            this.SellIn,
+            this.Quality});
+            this.dataGridView1.Location = new System.Drawing.Point(-7, 56);
+            this.dataGridView1.Name = "dataGridView1";
+            this.dataGridView1.RowHeadersWidth = 51;
+            this.dataGridView1.RowTemplate.Height = 24;
+            this.dataGridView1.Size = new System.Drawing.Size(560, 414);
+            this.dataGridView1.TabIndex = 0;
+            this.dataGridView1.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView1_CellContentClick_1);
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(199, 12);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(181, 23);
+            this.button1.TabIndex = 1;
+            this.button1.Text = "Show Data";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // Day
+            // 
+            this.Day.HeaderText = "Day";
+            this.Day.MinimumWidth = 6;
+            this.Day.Name = "Day";
+            this.Day.ReadOnly = true;
+            this.Day.Width = 125;
+            // 
+            // itemName
+            // 
+            this.itemName.HeaderText = "itemName";
+            this.itemName.MinimumWidth = 6;
+            this.itemName.Name = "itemName";
+            this.itemName.ReadOnly = true;
+            this.itemName.Width = 125;
+            // 
+            // SellIn
+            // 
+            this.SellIn.HeaderText = "SellIn";
+            this.SellIn.MinimumWidth = 6;
+            this.SellIn.Name = "SellIn";
+            this.SellIn.ReadOnly = true;
+            this.SellIn.Width = 125;
+            // 
+            // Quality
+            // 
+            this.Quality.HeaderText = "Quality";
+            this.Quality.MinimumWidth = 6;
+            this.Quality.Name = "Quality";
+            this.Quality.ReadOnly = true;
+            this.Quality.Width = 125;
+            // 
+            // appGUI
+            // 
+            this.ClientSize = new System.Drawing.Size(554, 460);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.dataGridView1);
+            this.Name = "appGUI";
+            this.Text = "appGUI";
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
+            this.ResumeLayout(false);
+
+    }
+
+    public static void Main(string[] args)
+    {
+    var guiForm = new appGUI();
+    guiForm.ShowDialog();
+    }
+
+    private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
+    {
+
+    }
+
+    private void dataGridView1_CellContentClick_1(object sender, DataGridViewCellEventArgs e)
+    {
+
+    }
+
+    private void button1_Click(object sender, EventArgs e)
+    {
+        List<Item> Items = new List<Item>{
+            new Item {Name = "+5 Dexterity Vest", SellIn = 10, Quality = 20},
+            new Item {Name = "Aged Brie", SellIn = 2, Quality = 0},
+            new Item {Name = "Elixir of the Mongoose", SellIn = 5, Quality = 7},
+            new Item {Name = "Sulfuras, Hand of Ragnaros", SellIn = 0, Quality = 80},
+            new Item {Name = "Sulfuras, Hand of Ragnaros", SellIn = -1, Quality = 80},
+            new Item
+            {
+                Name = "Backstage passes to a TAFKAL80ETC concert",
+                SellIn = 15,
+                Quality = 20
+            },
+            new Item
+            {
+                Name = "Backstage passes to a TAFKAL80ETC concert",
+                SellIn = 10,
+                Quality = 49
+            },
+            new Item
+            {
+                Name = "Backstage passes to a TAFKAL80ETC concert",
+                SellIn = 5,
+                Quality = 49
+            },
+			// this conjured item does not work properly yet
+			new Item {Name = "Conjured Mana Cake", SellIn = 3, Quality = 6}
+        };
+
+        var app = new GildedRose(Items);
+
+
+        for (var i = 0; i < 31; i++)
+        {
+            Console.WriteLine("-------- day " + i + " --------");
+            Console.WriteLine("name, sellIn, quality");
+            for (var j = 0; j < Items.Count; j++)
+            {
+                DataGridViewRow row = (DataGridViewRow)dataGridView1.Rows[j].Clone();
+                row.Cells[0].Value = i;
+                row.Cells[1].Value = Items[j].Name;
+                row.Cells[2].Value = Items[j].SellIn;
+                row.Cells[3].Value = Items[j].Quality;
+                dataGridView1.Rows.Add(row);
+            }
+            app.UpdateQuality();
+        }
+    }
+}
\ No newline at end of file
diff --git a/csharp/appGUI.resx b/csharp/appGUI.resx
new file mode 100644
index 00000000..f1e9548c
--- /dev/null
+++ b/csharp/appGUI.resx
@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="Day.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="itemName.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="SellIn.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="Quality.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>
\ No newline at end of file
diff --git a/csharp/csharp.csproj b/csharp/csharp.csproj
index 95d10cf1..0bd5be5c 100644
--- a/csharp/csharp.csproj
+++ b/csharp/csharp.csproj
@@ -7,7 +7,7 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{176C0214-9136-4079-8DAB-11D7420C3881}</ProjectGuid>
-    <OutputType>Exe</OutputType>
+    <OutputType>WinExe</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>csharp</RootNamespace>
     <AssemblyName>csharp</AssemblyName>
@@ -36,6 +36,9 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="ApprovalTests, Version=3.0.0.0, Culture=neutral, PublicKeyToken=11bd7d124fc62e0f, processorArchitecture=MSIL">
       <HintPath>packages\ApprovalTests.3.0.13\lib\net40\ApprovalTests.dll</HintPath>
@@ -66,6 +69,15 @@
     <Reference Include="System.Data.Entity.Design" />
     <Reference Include="System.Data.Linq" />
     <Reference Include="System.Data.Services" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Drawing.Design" />
+    <Reference Include="System.Windows" />
+    <Reference Include="System.Windows.Controls.Ribbon" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Windows.Forms.DataVisualization" />
+    <Reference Include="System.Windows.Forms.DataVisualization.Design" />
+    <Reference Include="System.Windows.Input.Manipulations" />
+    <Reference Include="System.Windows.Presentation" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -74,6 +86,9 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="appGUI.cs">
+      <SubType>Form</SubType>
+    </Compile>
     <Compile Include="ApprovalTest.cs" />
     <Compile Include="GildedRose.cs" />
     <Compile Include="GildedRoseTest.cs" />
@@ -88,6 +103,11 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="appGUI.resx">
+      <DependentUpon>appGUI.cs</DependentUpon>
+    </EmbeddedResource>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>