diff --git a/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/UniversalEditor.UserInterface.WindowsForms.DesktopApplication.csproj b/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/UniversalEditor.UserInterface.WindowsForms.DesktopApplication.csproj
index 8fc36d1b..9a5f62f1 100644
--- a/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/UniversalEditor.UserInterface.WindowsForms.DesktopApplication.csproj
+++ b/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/UniversalEditor.UserInterface.WindowsForms.DesktopApplication.csproj
@@ -186,7 +186,6 @@
       <DependentUpon>SplashScreenWindow.cs</DependentUpon>
     </Compile>
     <Compile Include="TemporaryFileManager.cs" />
-    <Compile Include="UnsavedDocumentOption.cs" />
     <EmbeddedResource Include="Controls\ErrorList.resx">
       <DependentUpon>ErrorList.cs</DependentUpon>
     </EmbeddedResource>
diff --git a/CSharp/Libraries/UniversalEditor.UserInterface/UniversalEditor.UserInterface.csproj b/CSharp/Libraries/UniversalEditor.UserInterface/UniversalEditor.UserInterface.csproj
index 50b96136..6c9c7996 100644
--- a/CSharp/Libraries/UniversalEditor.UserInterface/UniversalEditor.UserInterface.csproj
+++ b/CSharp/Libraries/UniversalEditor.UserInterface/UniversalEditor.UserInterface.csproj
@@ -72,6 +72,7 @@
     <Compile Include="SingleInstanceManager.cs" />
     <Compile Include="Toolbar.cs" />
     <Compile Include="Toolbox.cs" />
+    <Compile Include="UnsavedDocumentOption.cs" />
     <Compile Include="WindowState.cs" />
   </ItemGroup>
   <ItemGroup>
diff --git a/CSharp/Libraries/UniversalEditor.UserInterface/UnsavedDocumentOption.cs b/CSharp/Libraries/UniversalEditor.UserInterface/UnsavedDocumentOption.cs
new file mode 100644
index 00000000..9137ef0a
--- /dev/null
+++ b/CSharp/Libraries/UniversalEditor.UserInterface/UnsavedDocumentOption.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace UniversalEditor.UserInterface
+{
+    public enum UnsavedDocumentOption
+    {
+        Save,
+        Discard
+    }
+}