# improved ActivationManager class to load deployment assembly parts …

…at startup according to the flag in the LoadAssemblyParts property

SilverlightActivator.NuGet/Properties/AssemblyInfo.cs

@@ -42,7 +42,7 @@
 //
 // You can specify all the values or you can default the Revision and Build Numbers 
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.0.4")]
+[assembly: AssemblyFileVersion("1.0.4")]
 [assembly: CLSCompliant(true)]
 [assembly: NeutralResourcesLanguageAttribute("en-US")]

SilverlightActivator.NuGet/SilverlightActivator.nuspec

@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
   <metadata>
     <id>SilverlightActivator</id>
-    <version>1.0.3</version>
+    <version>1.0.4</version>
     <title>Silverlight Activator for Windows Phone</title>
     <authors>Mariano Converti, Damian Martinez Gelabert, and Nicolás Bello Camilletti</authors>
     <owners>Mariano Converti, Damian Martinez Gelabert, and Nicolás Bello Camilletti</owners>

SilverlightActivator.NuGet/content/App.xaml.transform

@@ -7,7 +7,7 @@
     <ResourceDictionary>
       <ResourceDictionary.MergedDictionaries>
       </ResourceDictionary.MergedDictionaries>
-      <silverlightactivator:ActivationManager x:Name="SilverlightActivator" />
+      <silverlightactivator:ActivationManager x:Name="SilverlightActivator" LoadAssemblyParts="False" />
     </ResourceDictionary>
   </Application.Resources>
 

SilverlightActivator_WP/ActivationManager.cs

@@ -11,7 +11,10 @@
 namespace SilverlightActivator
 {
     using System;
+    using System.Collections.Generic;
+    using System.IO;
     using System.Linq;
+    using System.Reflection;
     using System.Windows;
 
     /// <summary>
@@ -20,6 +23,8 @@ namespace SilverlightActivator
     public class ActivationManager
     {
         private static bool initialized = false;
+        private static bool loadAssemblyParts = false;
+        private static bool assemblyPartsLoaded = false;
 
         /// <summary>
         /// Initializes a new instance of the SilverlightActivator.ActivationManager class, containing the activation mechanisms.
@@ -33,6 +38,17 @@ public ActivationManager()
             }
         }
 
+        /// <summary>
+        /// Gets or Sets a flag indicating if all the assembly parts in the 
+        /// Application Manifest should be loaded at startup to look for 
+        /// activation attributes.
+        /// </summary>
+        public bool LoadAssemblyParts
+        {
+            get { return loadAssemblyParts; }
+            set { loadAssemblyParts = value;  }
+        }
+
         /// <summary>
         /// Runs all the available ApplicationStartup methods.
         /// </summary>
@@ -58,18 +74,46 @@ private static void Init()
         private static void RunActivationMethods<T>() where T : BaseActivationMethodAttribute
         {
             var deploymentParts = Deployment.Current.Parts.Cast<AssemblyPart>();
+
+            if (loadAssemblyParts && !assemblyPartsLoaded)
+            {
+                Load(deploymentParts);
+                assemblyPartsLoaded = true;
+            }
+
+            // Filter loaded assemblies to only get the deployment assembly parts.
             var activationAssemblies = AppDomain.CurrentDomain.GetAssemblies()
                 .Where(a => deploymentParts.Any(p => p.Source.Equals(a.ManifestModule.Name, StringComparison.OrdinalIgnoreCase))
-                            && (a != typeof(ActivationManager).Assembly));
+                            && (a != typeof(ActivationManager).Assembly))
+                .ToList();
+            var activationAttributes = new List<T>();
+
+            // Iterate throughout all the loaded deployment assembly parts to look for activation attributes.
+            activationAssemblies.ForEach(assembly => activationAttributes.AddRange(assembly.GetActivationAttributes<T>()));
+
+            // Execute activation methods according to the order specified.
+            foreach (var attribute in activationAttributes.OrderBy(at => at.Order))
+            {
+                attribute.InvokeMethod();
+            }
+        }
 
-            foreach (var assembly in activationAssemblies)
+        private static void Load(IEnumerable<AssemblyPart> deploymentParts)
+        {
+            foreach (var assemblyPart in deploymentParts)
             {
-                // The activation methods are executed according to the specified order
-                var activationAttributes = assembly.GetActivationAttributes<T>().OrderBy(at => at.Order);
-                foreach (var attribute in activationAttributes)
+                var assemblyString = assemblyPart.Source
+                    .ToUpperInvariant()
+                    .Replace(".DLL", string.Empty);
+
+                try
                 {
-                    attribute.InvokeMethod();
+                    if (!string.IsNullOrWhiteSpace(assemblyString))
+                        Assembly.Load(assemblyString);
                 }
+                catch (FileNotFoundException) { }
+                catch (FileLoadException) { }
+                catch (BadImageFormatException) { }
             }
         }
     }

SilverlightActivator_WP/Properties/AssemblyInfo.cs

@@ -42,7 +42,7 @@
 //
 // You can specify all the values or you can default the Revision and Build Numbers 
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.0.4")]
+[assembly: AssemblyFileVersion("1.0.4")]
 [assembly: CLSCompliant(true)]
 [assembly: NeutralResourcesLanguageAttribute("en-US")]

SilverlightActivator_WP/Properties/GlobalSuppressions.cs

@@ -19,4 +19,5 @@
 // You do not need to add suppressions to this file manually.
 
 [assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1053:StaticHolderTypesShouldNotHaveConstructors", Scope = "type", Target = "SilverlightActivator.ActivationManager", Justification = "This class cannot be static and must contain one default public constructor since it is added as an application resource in the App.xaml file.")]
-[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1020:AvoidNamespacesWithFewTypes", Scope = "namespace", Target = "SilverlightActivator", Justification = "There is only one namespace in the assembly")]
+[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1020:AvoidNamespacesWithFewTypes", Scope = "namespace", Target = "SilverlightActivator", Justification = "There is only one namespace in the assembly.")]
+[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1822:MarkMembersAsStatic", Scope = "member", Target = "SilverlightActivator.ActivationManager.#LoadAssemblyParts", Justification = "This property is intended to be set when added as an application resource in the App.xaml file.")]