C#•10mo ago

Decompiling XAML problem

Hello, I am performing reverse engineering on a .NET Framework 4.5 application. Although I am not very familiar with C# or .NET itself, I have already made 70-80% progress.

Now, regarding my issue, I am using tools like ILSpy and dotPeek to decompile the code. In general, I always compare the two decompiled codebases to fine-tune the results. However, I am facing issues mainly with XAML/BAML files, specifically with the following line of code:

<Style TargetType="{x:Type controls:Foo}" BasedOn="{StaticResource {x:Type controls:Foo}}">

<Style TargetType="{x:Type controls:Foo}" BasedOn="{StaticResource {x:Type controls:Foo}}">

This results in the following error:

'Builder.Presentation.Controls.Foo' resource not found.

'Builder.Presentation.Controls.Foo' resource not found.

My import:

xmlns:controls="clr-namespace:Builder.Presentation.Controls"

xmlns:controls="clr-namespace:Builder.Presentation.Controls"

amphibianOP•3/16/25, 12:39 AM

My class:

amphibianOP•3/17/25, 9:44 PM

Solved, I forgot to add ExpanderStyles.xaml to MergedDictionaries in App.xaml.

using System.Windows; using System.Windows.Controls; namespace Builder.Presentation.Controls { public class FooClass: Expander { public static readonly DependencyProperty AdditionalHeaderContentProperty; public static readonly DependencyProperty FooterContentProperty; public static readonly DependencyProperty FooterVisibilityProperty; public static readonly DependencyProperty AdditionalHeaderVisibilityProperty; public static readonly DependencyProperty AdditionalHeaderContentTemplateProperty; public FrameworkElement AdditionalHeaderContent { get { return (FrameworkElement)GetValue(AdditionalHeaderContentProperty); } set { SetValue(AdditionalHeaderContentProperty, value); } } public object FooterContent { get { return GetValue(FooterContentProperty); } set { SetValue(FooterContentProperty, value); } } public Visibility FooterVisibility { get { return (Visibility)GetValue(FooterVisibilityProperty); } set { SetValue(FooterVisibilityProperty, value); } } public Visibility AdditionalHeaderVisibility { get { return (Visibility)GetValue(AdditionalHeaderVisibilityProperty); } set { SetValue(AdditionalHeaderVisibilityProperty, value); } } public DataTemplate AdditionalHeaderContentTemplate { get { return (DataTemplate)GetValue(AdditionalHeaderContentTemplateProperty); } set { SetValue(AdditionalHeaderContentTemplateProperty, value); } } static Foo() { AdditionalHeaderContentProperty = DependencyProperty.Register("AdditionalHeaderContent", typeof(FrameworkElement), typeof(FooClass), new PropertyMetadata((object)null)); FooterContentProperty = DependencyProperty.Register("FooterContent", typeof(object), typeof(FooClass), new PropertyMetadata((object)null)); FooterVisibilityProperty = DependencyProperty.Register("FooterVisibility", typeof(Visibility), typeof(FooClass), new PropertyMetadata(Visibility.Collapsed)); AdditionalHeaderVisibilityProperty = DependencyProperty.Register("AdditionalHeaderVisibility", typeof(Visibility), typeof(FooClass), new PropertyMetadata(Visibility.Visible)); AdditionalHeaderContentTemplateProperty = DependencyProperty.Register("AdditionalHeaderContentTemplate", typeof(DataTemplate), typeof(FooClass), new PropertyMetadata((object)null)); FrameworkElement.DefaultStyleKeyProperty.OverrideMetadata(typeof(FooClass ), new FrameworkPropertyMetadata(typeof(FooClass))); } } }