To retrieve a IEnuemerable of all types in the current or another Assembly that implement a specific Interface / Abstract class and so on, you can use the snippets below.
Methods
C# Version
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Assembly myAssembly = Assembly.LoadFrom(@"C:\Codesnippets.Fesslersoft.de\Fesslersoft.dll"); //Gets all referenced Types of the current Assembly that implement a specific interface IEnumerable<Type> currentAssemblytypes = AppDomain.CurrentDomain.GetAssemblies().SelectMany(x => x.GetTypes()).Where(y => typeof(MyInterfaceName).IsAssignableFrom(y) && !y.IsInterface); //Gets all referenced Types of an assembly that implement a specific interface IEnumerable<Type> otherAssemblyTypes = myAssembly.GetTypes().Where(y => typeof(MyAbractClassName).IsAssignableFrom(y) && !y.IsInterface); //You can also change IsInterface to IsAbstract if you are checking for types that implement an Abstract Class. IEnumerable<Type> otherAssemblyTypesAbstract = myAssembly.GetTypes().Where(y => typeof(MyAbractClassName).IsAssignableFrom(y) && !y.IsAbstract); |
VB.NET Version
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Dim myAssembly As Assembly = Assembly.LoadFrom("C:\Codesnippets.Fesslersoft.de\Fesslersoft.dll") 'Gets all referenced Types of the current Assembly that implement a specific interface Dim currentAssemblytypes As IEnumerable(Of Type) = AppDomain.CurrentDomain.GetAssemblies().SelectMany(Function(x) x.GetTypes()).Where(Function(y) GetType(MyInterfaceName).IsAssignableFrom(y) AndAlso Not y.IsInterface) 'Gets all referenced Types of an assembly that implement a specific interface Dim otherAssemblyTypes As IEnumerable(Of Type) = myAssembly.GetTypes().Where(Function(y) GetType(MyAbractClassName).IsAssignableFrom(y) AndAlso Not y.IsInterface) 'You can also change IsInterface to IsAbstract if you are checking for types that implement an Abstract Class. Dim otherAssemblyTypesAbstract As IEnumerable(Of Type) = myAssembly.GetTypes().Where(Function(y) GetType(MyAbractClassName).IsAssignableFrom(y) AndAlso Not y.IsAbstract) |
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