WPF Example - MenuHandler commands now fire reliably

- The MVVM Light RelayCommand keeps a WeakRef to the command action, for us this is anonymous, so we
need to keep the target alive.
- Updated MVVMLightLibs (required for keepTargetAlive)

Author: amaitland

CefSharp.Wpf.Example/CefSharp.Wpf.Example.csproj

@@ -74,26 +74,26 @@
     <StartupObject>CefSharp.Wpf.Example.Program</StartupObject>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="GalaSoft.MvvmLight">
-      <HintPath>..\packages\MvvmLightLibs.5.1.1.0\lib\net45\GalaSoft.MvvmLight.dll</HintPath>
+    <Reference Include="CommonServiceLocator, Version=2.0.2.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0, processorArchitecture=MSIL">
+      <HintPath>..\packages\CommonServiceLocator.2.0.2\lib\net45\CommonServiceLocator.dll</HintPath>
     </Reference>
-    <Reference Include="GalaSoft.MvvmLight.Extras">
-      <HintPath>..\packages\MvvmLightLibs.5.1.1.0\lib\net45\GalaSoft.MvvmLight.Extras.dll</HintPath>
+    <Reference Include="GalaSoft.MvvmLight, Version=5.4.1.0, Culture=neutral, PublicKeyToken=e7570ab207bcb616, processorArchitecture=MSIL">
+      <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.dll</HintPath>
     </Reference>
-    <Reference Include="GalaSoft.MvvmLight.Platform">
-      <HintPath>..\packages\MvvmLightLibs.5.1.1.0\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
+    <Reference Include="GalaSoft.MvvmLight.Extras, Version=5.4.1.0, Culture=neutral, PublicKeyToken=669f0b5e8f868abf, processorArchitecture=MSIL">
+      <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Extras.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="Microsoft.Practices.ServiceLocation">
-      <HintPath>..\packages\CommonServiceLocator.1.3\lib\portable-net4+sl5+netcore45+wpa81+wp8\Microsoft.Practices.ServiceLocation.dll</HintPath>
+    <Reference Include="GalaSoft.MvvmLight.Platform, Version=5.4.1.0, Culture=neutral, PublicKeyToken=5f873c45e98af8a1, processorArchitecture=MSIL">
+      <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.Core">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
     <Reference Include="System.Drawing" />
     <Reference Include="System.Windows.Interactivity, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\MvvmLightLibs.5.1.1.0\lib\net45\System.Windows.Interactivity.dll</HintPath>
+      <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\System.Windows.Interactivity.dll</HintPath>
     </Reference>
     <Reference Include="System.Xaml" />
     <Reference Include="WindowsBase" />

CefSharp.Wpf.Example/Handlers/MenuHandler.cs

@@ -199,7 +199,7 @@ bool IContextMenuHandler.RunContextMenu(IWebBrowser chromiumWebBrowser, IBrowser
                                     break;
                                 }
                             }
-                        })
+                        }, keepTargetAlive: true)
                     });
                 }
                 webBrowser.ContextMenu = menu;

CefSharp.Wpf.Example/packages.config

@@ -2,7 +2,7 @@
 <packages>
   <package id="cef.redist.x64" version="75.1.14" targetFramework="net462" />
   <package id="cef.redist.x86" version="75.1.14" targetFramework="net462" />
-  <package id="CommonServiceLocator" version="1.3" targetFramework="net45" />
+  <package id="CommonServiceLocator" version="2.0.2" targetFramework="net462" />
   <package id="Microsoft.Net.Compilers" version="2.9.0" targetFramework="net462" developmentDependency="true" />
-  <package id="MvvmLightLibs" version="5.1.1.0" targetFramework="net45" />
+  <package id="MvvmLightLibs" version="5.4.1.1" targetFramework="net462" />
 </packages>