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Categories / C# / XML

 

Attribute Util

using System; using System.Collections.Generic; using System.Reflection; using System.Linq; internal class AttributedTypesUtility {     internal static List<Type> GetTypesWithAttribute(Type attributeType)     {         var typesWithAttribute = new List<Type>();         Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();         foreach (Assembly assembly in assemblies)         {             IEnumerable<Type> typesWithAttributeInAssembly = GetTypesWithAttributeInAssembly(assembly, attributeType);             typesWithAttribute.AddRange(typesWithAttributeInAssembly);         }         return typesWithAttribute;     }     private static IEnumerable<Type> GetTypesWithAttributeInAssembly(Assembly assembly, Type attributeType)     {         Type[] types = assembly.GetTypes();         return types.Where(type => TypeHasAttribute(type, attributeType)).ToList();     }     private static bool TypeHasAttribute(Type type, Type attributeType)     {         bool typeHasAttribute = false;         object[] attributes = GetAttributes(type);         foreach (object attribute in attributes)         {             if (attributeType.IsAssignableFrom(attribute.GetType()))                 typeHasAttribute = true;         }         return typeHasAttribute;     }     private static object[] GetAttributes(Type type)     {         return type.GetCustomAttributes(true); ;     }     internal static Attribute GetAttribute(Type type, Type attributeType)     {         Attribute attribute = null;         object[] attributes = type.GetCustomAttributes(true);         foreach (object attributeInType in attributes)         {             if (attributeType.IsAssignableFrom(attributeInType.GetType()))                 attribute = (Attribute)attributeInType;         }         return attribute;     } }