Fix: Retrieving pre-release updates didn't work even if setting was activated.

src/AddIns/Misc/AddInManager2/AddInManager2.Tests/AddInManager2.Tests.csproj

@@ -71,6 +71,7 @@
     <Compile Include="AddInSetupTests.cs" />
     <Compile Include="AvailableAddInsViewModelTests.cs" />
     <Compile Include="Configuration\AssemblyInfo.cs" />
+    <Compile Include="ExtensionsTests.cs" />
     <Compile Include="Fakes\FakeAddInManagerServices.cs" />
     <Compile Include="Fakes\FakeAddInSetup.cs" />
     <Compile Include="Fakes\FakeAddInTree.cs" />

src/AddIns/Misc/AddInManager2/AddInManager2.Tests/ExtensionsTests.cs

@@ -0,0 +1,57 @@
+// 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 NuGet;
+using NUnit;
+using NUnit.Framework;
+
+namespace ICSharpCode.AddInManager2.Tests
+{
+	public class ExtensionsTests
+	{
+		[Test]
+		public void SemanticVersionConvertShortVersion()
+		{
+			SemanticVersion semVersion = new SemanticVersion("2.1");
+			Version convertedVersion = semVersion.ToVersion();
+			Assert.That(convertedVersion.Major, Is.EqualTo(2));
+			Assert.That(convertedVersion.Minor, Is.EqualTo(1));
+			Assert.That(convertedVersion.Build, Is.EqualTo(-1));
+			Assert.That(convertedVersion.Revision, Is.EqualTo(-1));
+		}
+		
+		[Test]
+		public void SemanticVersionConvertShortVersionWithZeros()
+		{
+			SemanticVersion semVersion = new SemanticVersion("2.1.0.0");
+			Version convertedVersion = semVersion.ToVersion();
+			Assert.That(convertedVersion.Major, Is.EqualTo(2));
+			Assert.That(convertedVersion.Minor, Is.EqualTo(1));
+			Assert.That(convertedVersion.Build, Is.EqualTo(0));
+			Assert.That(convertedVersion.Revision, Is.EqualTo(0));
+		}
+		
+		[Test]
+		public void SemanticVersionConvertFullVersion()
+		{
+			SemanticVersion semVersion = new SemanticVersion("2.1.3.4");
+			Version convertedVersion = semVersion.ToVersion();
+			Assert.That(convertedVersion.Major, Is.EqualTo(2));
+			Assert.That(convertedVersion.Minor, Is.EqualTo(1));
+			Assert.That(convertedVersion.Build, Is.EqualTo(3));
+			Assert.That(convertedVersion.Revision, Is.EqualTo(4));
+		}
+		
+		[Test]
+		public void SemanticVersionConvertFullVersionWithSpecial()
+		{
+			SemanticVersion semVersion = new SemanticVersion(new Version("2.1.3.4"), "56789");
+			Version convertedVersion = semVersion.ToVersion();
+			Assert.That(convertedVersion.Major, Is.EqualTo(2));
+			Assert.That(convertedVersion.Minor, Is.EqualTo(1));
+			Assert.That(convertedVersion.Build, Is.EqualTo(3));
+			Assert.That(convertedVersion.Revision, Is.EqualTo(4));
+		}
+	}
+}

src/AddIns/Misc/AddInManager2/Project/AddInManager2.csproj

@@ -94,7 +94,7 @@
     <Compile Include="Src\BooleanToFontWeightConverter.cs" />
     <Compile Include="Src\Commands.cs" />
     <Compile Include="Src\DelegateCommand.cs" />
-    <Compile Include="Src\EnumerableExtensions.cs" />
+    <Compile Include="Src\Extensions.cs" />
     <Compile Include="Src\Model\AcceptLicensesEventArgs.cs" />
     <Compile Include="Src\Model\AddInDependency.cs" />
     <Compile Include="Src\Model\AddInInstallationEventArgs.cs" />

src/AddIns/Misc/AddInManager2/Project/Src/Extensions.cs

@@ -31,4 +31,18 @@ namespace ICSharpCode.AddInManager2
 			}
 		}
 	}
+	
+	public static class SemanticVersionExtensions
+	{
+		public static Version ToVersion(this SemanticVersion semanticVersion)
+		{
+			string versionString = semanticVersion.ToString();
+			if (!String.IsNullOrEmpty(semanticVersion.SpecialVersion))
+			{
+				// Remove special version from string (-1 for the "-" added before the version)
+				versionString = versionString.Substring(0, versionString.Length - semanticVersion.SpecialVersion.Length - 1);
+			}
+			return new Version(versionString);
+		}
+	}
 }

src/AddIns/Misc/AddInManager2/Project/Src/ViewModel/NuGetAddInsViewModelBase.cs

@@ -186,7 +186,7 @@ namespace ICSharpCode.AddInManager2.ViewModel
 		protected virtual IEnumerable<IPackage> GetFilteredPackagesBeforePagingResults(IQueryable<IPackage> allPackages)
 		{
 			return GetBufferedPackages(allPackages)
-				.Where(package => package.IsReleaseVersion())
+				.Where(package => ShowPrereleases || package.IsReleaseVersion())
 				.DistinctLast(PackageEqualityComparer.Id);
 		}
 		

src/AddIns/Misc/AddInManager2/Project/Src/ViewModel/NuGetPackageViewModel.cs

@@ -257,7 +257,7 @@ namespace ICSharpCode.AddInManager2.ViewModel
 			{
 				if (_package.Version != null)
 				{
-					return new Version(_package.Version.ToString());
+					return _package.Version.ToVersion();
 				}
 				else
 				{