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Null value on currentAssembly.GetManifestResourceStream()

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Raul
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Raul asked on 26 Mar 2020, 01:13 PM

Hello,

 

yesterday I installed  the latest Visual Studio 2019 update and now I'm getting in the line

var dllStream = currentAssembly.GetManifestResourceStream(fullDllName);

a value of null (called in CurrentDomain_AssemblyResolve()). It was working good all the time.

 

I'm using the code posted here:

https://www.telerik.com/forums/how-to-display-controls-(like-radwindow)-at-design-time-when-noxaml-is-used-and-implicit-style-resources-are-in-a-custom-dll#Pz5cUcqhtk-t3EQHJuJYHg

 

   public class TelerikThemeUtilities{
 
        static TelerikThemeUtilities() {
            AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
        }
 
        public static void Initialize() {
        }
 
        public static bool GetDesignTime(DependencyObject obj) {
            return (bool)obj.GetValue(DesignTimeProperty);
        }
 
        public static void SetDesignTime(DependencyObject obj, bool value) {
            obj.SetValue(DesignTimeProperty, value);
        }
 
        public static readonly DependencyProperty DesignTimeProperty = DependencyProperty.RegisterAttached(
            "DesignTime",
            typeof(bool),
            typeof(TelerikThemeUtilities),
            new PropertyMetadata(false, DesignTimeChanged));
 
        private static void DesignTimeChanged(DependencyObject target, DependencyPropertyChangedEventArgs args) {
            if (((bool)args.NewValue) && System.ComponentModel.DesignerProperties.GetIsInDesignMode(target)) {
                FrameworkElement element = target as FrameworkElement;
                LoadTelerikTheme(element.Resources, "Crystal");
            }
        }
 
        public static void LoadTelerikTheme(string themeName) {
            Application.Current.Resources.Clear();
            LoadTelerikTheme(Application.Current.Resources, themeName);
        }
 
        private static void LoadTelerikTheme(ResourceDictionary resources, string themeName) {
            resources.MergedDictionaries.Add(new ResourceDictionary() {
                Source = new Uri("/Telerik.Windows.Themes." + themeName + ";component/Themes/Telerik.Windows.Controls.xaml", UriKind.RelativeOrAbsolute)
            });
            resources.MergedDictionaries.Add(new ResourceDictionary() {
                Source = new Uri("/Telerik.Windows.Themes." + themeName + ";component/Themes/Telerik.Windows.Controls.Input.xaml", UriKind.RelativeOrAbsolute)
            });
            resources.MergedDictionaries.Add(new ResourceDictionary() {
                Source = new Uri("/Telerik.Windows.Themes." + themeName + ";component/Themes/Telerik.Windows.Controls.Navigation.xaml", UriKind.RelativeOrAbsolute)
            });
            resources.MergedDictionaries.Add(new ResourceDictionary() {
                Source = new Uri("/Telerik.Windows.Themes." + themeName + ";component/Themes/Telerik.Windows.Controls.GridView.xaml", UriKind.RelativeOrAbsolute)
            });
            resources.MergedDictionaries.Add(new ResourceDictionary() {
                Source = new Uri("/Telerik.Windows.Themes." + themeName + ";component/Themes/Telerik.Windows.Documents.xaml", UriKind.RelativeOrAbsolute)
            });
        }
 
        private static System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args) {
            var dllName = args.Name.Substring(0, args.Name.IndexOf(',')) + ".dll";
            if (dllName.Contains("Telerik")) {
                var currentAssembly = System.Reflection.Assembly.GetExecutingAssembly();
                var fullDllName = currentAssembly.GetName().Name + ".lib." + dllName;
                var dllStream = currentAssembly.GetManifestResourceStream(fullDllName);
                var streamBytes = new byte[dllStream.Length];
                dllStream.Read(streamBytes, 0, streamBytes.Length);
                var requestedAssembly = System.Reflection.Assembly.Load(streamBytes);
 
                return requestedAssembly;
            }
            else {
                return null;
            }
        }
    }
}

 

-       $exception  {"Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt."}    System.NullReferenceException
+       Data    {System.Collections.ListDictionaryInternal} System.Collections.IDictionary {System.Collections.ListDictionaryInternal}
        HResult -2147467261 int
        HelpLink    null    string
+       InnerException  null    System.Exception
        Message "Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt."  string
        Source  "PsShell"   string
        StackTrace  "   bei PsShell.TelerikThemeUtilities.CurrentDomain_AssemblyResolve(Object sender, ResolveEventArgs args) in C:\\Projects\\PSV\\PSV-Client\\source\\PsShell\\TelerikThemeUtilities.cs: Zeile64" string
+       TargetSite  {System.Reflection.Assembly CurrentDomain_AssemblyResolve(System.Object, System.ResolveEventArgs)}  System.Reflection.MethodBase {System.Reflection.RuntimeMethodInfo}
+       Statische Member       
+       Nicht √∂ffentliche Member       
+       sender  {Name:PsShell.exe
Keine Kontextrichtlinien vorhanden.
}   object {System.AppDomain}
+       args    {System.ResolveEventArgs}   System.ResolveEventArgs
        dllName "Telerik.Windows.Controls.resources.dll"    string
+       currentAssembly {PsShell, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null}    System.Reflection.Assembly {System.Reflection.RuntimeAssembly}
        fullDllName "PsShell.lib.Telerik.Windows.Controls.resources.dll"    string
+       dllStream   null    System.IO.Stream
        streamBytes null    byte[]
        requestedAssembly   null    System.Reflection.Assembly

 

 

Any ideas?

 

Best Regards,

Raul

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Raul
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answered on 26 Mar 2020, 02:34 PM
This seems only to happen when starting in Debug-Mode from Visual Studio
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