Module.IsDefined メソッド
アセンブリ: mscorlib (mscorlib.dll 内)

Public Overridable Function IsDefined ( _ attributeType As Type, _ inherit As Boolean _ ) As Boolean
Dim instance As Module Dim attributeType As Type Dim inherit As Boolean Dim returnValue As Boolean returnValue = instance.IsDefined(attributeType, inherit)
戻り値
このモジュールで attributeType のインスタンスが 1 つ以上定義されている場合は true。それ以外の場合は false。


Imports System Imports System.Reflection 'Define a module-level attribute. <Module: ReflectionModule_Examples.MySimpleAttribute("module-level")> 'Define a module-level attribute. Namespace ReflectionModule_Examples Class MyMainClass Shared Sub Main() Dim moduleArray() As [Module] moduleArray = [Assembly].GetExecutingAssembly().GetModules(False) 'In a simple project with only one module, the module at index ' 0 will be the module containing these classes. Dim myModule As [Module] = moduleArray(0) Dim myType As Type myType = myModule.GetType("ReflectionModule_Examples.MySimpleAttribute") Console.WriteLine("IsDefined(MySimpleAttribute) = {0}", myModule.IsDefined(myType, False)) End Sub 'Main End Class 'MyMainClass 'A very simple custom attribute. <AttributeUsage(AttributeTargets.Class Or AttributeTargets.Module)> _ Public Class MySimpleAttribute Inherits Attribute Private name As String Public Sub New(ByVal newName As String) name = newName End Sub 'New End Class 'MySimpleAttribute End Namespace 'ReflectionModule_Examples
using System; using System.Reflection; //Define a module-level attribute. [module: ReflectionModule_Examples.MySimpleAttribute("module-level")] namespace ReflectionModule_Examples { class MyMainClass { static void Main() { Module[] moduleArray; moduleArray = Assembly.GetExecutingAssembly().GetModules(false); //In a simple project with only one module, the module at index // 0 will be the module containing these classes. Module myModule = moduleArray[0]; Type myType; myType = myModule.GetType("ReflectionModule_Examples.MySimpleAttribute"); Console.WriteLine("IsDefined(MySimpleAttribute) = {0}", myModule.IsDefined(myType, false)); } } //A very simple custom attribute. [AttributeUsage(AttributeTargets.Class | AttributeTargets.Module)] public class MySimpleAttribute : Attribute { private string name; public MySimpleAttribute(string newName) { name = newName; } } }
using namespace System; using namespace System::Reflection; namespace ReflectionModule_Examples { //A very simple custom attribute. [AttributeUsage(AttributeTargets::Class|AttributeTargets::Module)] public ref class MySimpleAttribute: public Attribute { private: String^ name; public: MySimpleAttribute( String^ newName ) { name = newName; } }; } //Define a module-level attribute. [module:ReflectionModule_Examples::MySimpleAttribute("module-level")]; int main() { array<System::Reflection::Module^>^moduleArray; moduleArray = Assembly::GetExecutingAssembly()->GetModules( false ); //In a simple project with only one module, the module at index // 0 will be the module containing these classes. System::Reflection::Module^ myModule = moduleArray[ 0 ]; Type^ myType; myType = myModule->GetType( "ReflectionModule_Examples.MySimpleAttribute" ); Console::WriteLine( "IsDefined(MySimpleAttribute) = {0}", myModule->IsDefined( myType, false ) ); }
package ReflectionModule_Examples; import System.*; import System.Reflection.*; //Define a module-level attribute. /** @module ReflectionModule_Examples.MySimpleAttribute("module-level") */ class MyMainClass { public static void main(String[] args) { Module moduleArray[]; moduleArray = Assembly.GetExecutingAssembly().GetModules(false); //In a simple project with only one module, the module at index // 0 will be the module containing these classes. Module myModule = (Module)moduleArray.get_Item(0); Type myType; myType = myModule.GetType("ReflectionModule_Examples.MySimpleAttribute"); Console.WriteLine("IsDefined(MySimpleAttribute) = {0}", System.Convert.ToString(myModule.IsDefined(myType, false))); } //main } //MyMainClass //A very simple custom attribute. /** @attribute AttributeUsage(AttributeTargets.Class | AttributeTargets.Module) */ public class MySimpleAttribute extends Attribute { private String name; public MySimpleAttribute(String newName) { name = newName; } //MySimpleAttribute } //MySimpleAttribute

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