ParameterInfo.Name プロパティとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

ParameterInfo.Name プロパティ

パラメータの名前を取得します。

名前空間: System.Reflection
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Overridable ReadOnly
 Property Name As String

Visual Basic (使用法)

Dim instance As ParameterInfo
Dim value As String

value = instance.Name

public virtual string Name { get;
 }

C++

public:
virtual property String^ Name {
    String^ get ();
}

/** @property */
public String get_Name ()

JScript

public function get Name
 () : String

プロパティ値
このパラメータの単純名を格納している文字列。

解説

このメソッドは、プロテクトメソッド NameImpl を利用し、コンパイラによっては利用できない場合があるオプションのメタデータフラグに依存しています。

ParameterInfo 配列を取得するには、最初にメソッドまたはコンストラクタを取得してから MethodBase.GetParameters を呼び出します。

使用例

Visual Basic

Imports System
Imports System.Reflection
Imports Microsoft.VisualBasic

Class parminfo
    
    Public Shared Sub mymethod(int1m
 As Integer, ByRef str2m
 As String, _
    ByRef str3m As String)
        str2m = "in mymethod"
    End Sub
       
    Public Shared Function
 Main() As Integer
        Console.WriteLine(ControlChars.CrLf + "Reflection.Parameterinfo")
        
        'Get the ParameterInfo parameter of a function.
        'Get the type.
        Dim Mytype As Type = Type.GetType("parminfo")
        
        'Get and display the method.
        Dim Mymethodbase As MethodBase = Mytype.GetMethod("mymethod")
        Console.Write(ControlChars.CrLf _
           + "Mymethodbase = " + Mymethodbase.ToString())
        
        'Get the ParameterInfo array.
        Dim Myarray As ParameterInfo() = Mymethodbase.GetParameters()
        
        'Get and display the name of each parameter.
        Dim Myparam As ParameterInfo
        For Each Myparam In
  Myarray
            Console.Write(ControlChars.CrLf _
               + "For parameter # " + Myparam.Position.ToString()
 _
               + ", the Name is - " + Myparam.Name)
        Next Myparam
        Return 0
    End Function
End Class

' This code produces the following output:
'
' Reflection.ParameterInfo
'  
' Mymethodbase
' = Void mymethod (Int32, System.String ByRef, System.String ByRef)
' For parameter # 0, the Name is - int1m
' For parameter # 1, the Name is - str2m
' For parameter # 2, the Name is - str3m

using System;
using System.Reflection;
 
class parminfo
{
    public static void mymethod
 (
       int int1m, out string str2m, ref string
 str3m)
    {
       str2m = "in mymethod";
    }
  
    public static int Main(string[]
 args)
    {   
       Console.WriteLine("\nReflection.Parameterinfo");
       
       //Get the ParameterInfo parameter of a function.
  
       //Get the type.
       Type Mytype = Type.GetType("parminfo");
  
       //Get and display the method.
       MethodBase Mymethodbase = Mytype.GetMethod("mymethod");
       Console.Write("\nMymethodbase = " + Mymethodbase);
  
       //Get the ParameterInfo array.
       ParameterInfo[] Myarray = Mymethodbase.GetParameters();
       
       //Get and display the name of each parameter.
       foreach (ParameterInfo Myparam in Myarray)
       {
          Console.Write ("\nFor parameter # "   + Myparam.Position 
             + ", the Name is - " +  Myparam.Name);
       }
       return 0;
    }
 }
 /*
 This code produces the following output:

 Reflection.ParameterInfo
  
 Mymethodbase
 = Void mymethod (Int32, System.String ByRef, System.String ByRef)
 For parameter # 0, the Name is - int1m
 For parameter # 1, the Name is - str2m
 For parameter # 2, the Name is - str3m
 */

C++

using namespace System;
using namespace System::Reflection;
using namespace System::Runtime::InteropServices;
public ref class parminfo
{
public:
   static void mymethod( int
 int1m, [Out]interior_ptr<String^> str2m, interior_ptr<String^> str3m
 )
   {
       *str2m = "in mymethod";
   }

};

int main()
{
   Console::WriteLine( "\nReflection.Parameterinfo" );
   
   //Get the ParameterInfo parameter of a function.
   //Get the type.
   Type^ Mytype = Type::GetType( "parminfo" );
   
   //Get and display the method.
   MethodBase^ Mymethodbase = Mytype->GetMethod( "mymethod" );
   Console::Write( "\nMymethodbase = {0}", Mymethodbase );
   
   //Get the ParameterInfo array.
   array<ParameterInfo^>^Myarray = Mymethodbase->GetParameters();
   
   //Get and display the name of each parameter.
   System::Collections::IEnumerator^ enum0 = Myarray->GetEnumerator();
   while ( enum0->MoveNext() )
   {
      ParameterInfo^ Myparam = safe_cast<ParameterInfo^>(enum0->Current);
      Console::Write( "\nFor parameter # {0}, the Name is - {1}", Myparam->Position,
 Myparam->Name );
   }

   return 0;
}

/*
This code produces the following output:

Reflection.ParameterInfo

Mymethodbase
= Void mymethod (Int32, System.String ByRef, System.String ByRef)
For parameter # 0, the Name is - int1m
For parameter # 1, the Name is - str2m
For parameter # 2, the Name is - str3m
*/

import System.*;
import System.Reflection.*;

class Parminfo
{   
    public static void Mymethod(int
 int1m,
        /** @ref
         */ String str2m,
        /** @ref
         */ String str3m)
    {
        str2m = "in Mymethod";
    } //Mymethod

    public static void main(String[]
 args)
    {
        Console.WriteLine("\nReflection.Parameterinfo");

        //Get the ParameterInfo parameter of a function.
        //Get the type.
        Type myType = Type.GetType("Parminfo");

        //Get and display the method.
        MethodBase myMethodBase = myType.GetMethod("Mymethod");
        Console.Write(("\nMymethodbase = " + myMethodBase));

        //Get the ParameterInfo array.
        ParameterInfo myArray[] = myMethodBase.GetParameters();
        //Get and display the name of each parameter.
        for (int iCtr = 0; iCtr < myArray.length;
 iCtr++ ) {
            ParameterInfo myParam = myArray[iCtr];
            Console.Write(("\nFor parameter # " + myParam.get_Position()
 
                + ",the Name is - " + myParam.get_Name()));
        }
    } //main
} //parminfo
/*
 This code produces the following output:

 Reflection.ParameterInfo
  
 Mymethodbase
 = Void mymethod (Int32, System.String ByRef, System.String ByRef)
 For parameter # 0, the Name is - int1m
 For parameter # 1, the Name is - str2m
 For parameter # 2, the Name is - str3m
 */