ParameterInfo.Attributes プロパティ

定義

このパラメーターの属性を取得します。Gets the attributes for this parameter.

public:
 virtual property System::Reflection::ParameterAttributes Attributes { System::Reflection::ParameterAttributes get(); };
public virtual System.Reflection.ParameterAttributes Attributes { get; }
member this.Attributes : System.Reflection.ParameterAttributes
Public Overridable ReadOnly Property Attributes As ParameterAttributes

プロパティ値

ParameterAttributes

このパラメーターの属性を表す ParameterAttributes オブジェクト。A ParameterAttributes object representing the attributes for this parameter.

次の例では、3つのパラメーターを持つメソッドを定義します。The following example defines a method with three parameters. プロパティを使用して、 Attributes 2 番目のパラメーターの属性を取得し、コンソールに表示します。It uses the Attributes property to get the attributes of the second parameter and display them at the console.

using namespace System;
using namespace System::Reflection;
using namespace System::Runtime::InteropServices;
public ref class MyClass1
{
public:
   int MyMethod( int i, [Out]short * j, long * k )
   {
       *j = 2;
      return 0;
   }

};

void main()
{
   // Get the type. 
   Type^ myType = MyClass1::typeid;

   // Get the method named 'MyMethod' from the type.
   MethodBase^ myMethodBase = myType->GetMethod( "MyMethod" );

   // Get the parameters associated with the method.
   array<ParameterInfo^>^myParameters = myMethodBase->GetParameters();
   Console::WriteLine( "\nThe method {0} has the {1} parameters :", "ParameterInfo_Example::MyMethod", myParameters->Length );

   // Print the attributes associated with each of the parameters.
   for ( int i = 0; i < myParameters->Length; i++ )
      Console::WriteLine( "\tThe {0} parameter has the attribute : {1}", i + 1, myParameters[ i ]->Attributes );
}
using System;
using System.Reflection;
public class MyClass1
{
   public int MyMethod( int i, out short j, ref long k)
   {
      j = 2;
      return 0;
   }
}

public class ParameterInfo_Attributes
{
   public static void Main()
   {
      // Get the type.
      Type myType = typeof(MyClass1);
      // Get the method named 'MyMethod' from the type.
      MethodBase myMethodBase = myType.GetMethod("MyMethod");
      // Get the parameters associated with the method.
      ParameterInfo[] myParameters = myMethodBase.GetParameters();
      Console.WriteLine("\nThe method {0} has the {1} parameters :",
                          "ParameterInfo_Example.MyMethod", myParameters.Length);
      // Print the attributes associated with each of the parameters.
      for(int i = 0; i < myParameters.Length; i++)
         Console.WriteLine("\tThe {0} parameter has the attribute : {1}",
                                             i + 1, myParameters[i].Attributes);
   }
}
Imports System.Reflection

Public Class MyClass1
   
   Public Function MyMethod(i As Integer, ByRef j As Short, ByRef k As Long) As Integer
      j = 2
      Return 0
   End Function 'MyMethod
End Class

Public Class ParameterInfo_Attributes
   
   Public Shared Sub Main()
      ' Get the type. 
      Dim myType As Type = GetType(MyClass1)
      ' Get the method named 'MyMethod' from the type.
      Dim myMethodBase As MethodBase = myType.GetMethod("MyMethod")
      ' Get the parameters associated with the method.
      Dim myParameters As ParameterInfo() = myMethodBase.GetParameters()
      Console.WriteLine(ControlChars.Cr + "The method {0} has the {1} parameters :", "ParameterInfo_Example.MyMethod", myParameters.Length)
      ' Print the attributes associated with each of the parameters.
      Dim i As Integer
      For i = 0 To myParameters.Length - 1
         Console.WriteLine(ControlChars.Tab + "The {0} parameter has the attribute : {1}", i + 1, myParameters(i).Attributes)
      Next i
   End Sub
End Class

注釈

このメソッドは、 AttrsImpl メソッドを利用します。This method utilizes the AttrsImpl method.

配列を取得するに ParameterInfo は、最初にメソッドまたはコンストラクターを取得し、を呼び出し MethodBase.GetParameters ます。To get the ParameterInfo array, first get the method or the constructor and then call MethodBase.GetParameters.

適用対象

こちらもご覧ください