Allow PowerShell scripts to determine the project type (C# or VB.NET).

src/AddIns/Misc/PackageManagement/Project/PackageManagement.csproj

@@ -85,6 +85,7 @@
     <Compile Include="Src\EnvDTE\ProjectObject.cs" />
     <Compile Include="Src\EnvDTE\ProjectProperty.cs" />
     <Compile Include="Src\EnvDTE\ProjectPropertyFactory.cs" />
+    <Compile Include="Src\EnvDTE\ProjectType.cs" />
     <Compile Include="Src\EnvDTE\Properties.cs" />
     <Compile Include="Src\EnvDTE\Property.cs" />
     <Compile Include="Src\EnvDTE\Reference.cs" />

src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/Project.cs

@@ -3,6 +3,8 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
+
 using ICSharpCode.SharpDevelop.Project;
 using SD = ICSharpCode.SharpDevelop.Project;
 
@@ -67,6 +69,16 @@ namespace ICSharpCode.PackageManagement.EnvDTE
 			}
 		}
 		
+		public string Type {
+			get { return GetProjectType(); }
+		}
+		
+		string GetProjectType()
+		{
+			var projectType = new ProjectType(this);
+			return projectType.Type;
+		}
+		
 		internal MSBuildBasedProject MSBuildProject { get; private set; }
 		
 		public void Save()

src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/ProjectType.cs

@@ -0,0 +1,37 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.IO;
+
+namespace ICSharpCode.PackageManagement.EnvDTE
+{
+	public class ProjectType
+	{
+		Project project;
+		
+		public ProjectType(Project project)
+		{
+			this.project = project;
+			Type = String.Empty;
+			GetProjectType();
+		}
+		
+		void GetProjectType()
+		{
+			string extension = GetProjectFileExtension();
+			if (extension == ".csproj") {
+				Type = "C#";
+			} else if (extension == ".vbproj") {
+				Type = "VB.NET";
+			}
+		}
+		
+		string GetProjectFileExtension()
+		{
+			return Path.GetExtension(project.FileName).ToLowerInvariant();
+		}
+		
+		public string Type { get; private set; }
+	}
+}

src/AddIns/Misc/PackageManagement/Test/Src/EnvDTE/ProjectTests.cs

@@ -55,5 +55,38 @@ namespace PackageManagement.Tests.EnvDTE
 			
 			Assert.AreEqual(expectedFileName, fileName);
 		}
+		
+		[Test]
+		public void Type_ProjectIsCSharpProject_ReturnsCSharp()
+		{
+			CreateProject();
+			msbuildProject.FileName = @"c:\projects\myproject\test.csproj";
+			
+			string projectType = project.Type;
+			
+			Assert.AreEqual("C#", projectType);
+		}
+		
+		[Test]
+		public void Type_ProjectIsCSharpProjectWithFileNameInUpperCase_ReturnsCSharp()
+		{
+			CreateProject();
+			msbuildProject.FileName = @"c:\projects\myproject\TEST.CSPROJ";
+			
+			string projectType = project.Type;
+			
+			Assert.AreEqual("C#", projectType);
+		}
+		
+		[Test]
+		public void Type_ProjectIsVBProject_ReturnsVBNet()
+		{
+			CreateProject();
+			msbuildProject.FileName = @"c:\projects\myproject\test.vbproj";
+			
+			string projectType = project.Type;
+			
+			Assert.AreEqual("VB.NET", projectType);
+		}
 	}
 }