ParameterInfo.ParameterType Eigenschap

public:
 virtual property Type ^ ParameterType { Type ^ get(); };

public virtual Type ParameterType { get; }

member this.ParameterType : Type

Public Overridable ReadOnly Property ParameterType As Type

Waarde van eigenschap

Het Type object dat de Type parameter vertegenwoordigt.

Voorbeelden

In het volgende voorbeeld ziet u hoe u objecten ophaalt ParameterInfo voor de parameters van een methode en vervolgens de ParameterType eigenschap gebruikt om het type van elke parameter weer te geven.

 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 ParameterInfo of each parameter.
       foreach (ParameterInfo Myparam in Myarray)
       {
          Console.Write ("\nFor parameter # " + Myparam.Position
             + ", the ParameterType is - " + Myparam.ParameterType);
       }
       return 0;
    }
 }

 /*
 This code produces the following output:

Reflection.Parameterinfo

Mymethodbase = Void mymethod(int, System.String ByRef, System.String ByRef)
For parameter # 0, the ParameterType is - System.Int32
For parameter # 1, the ParameterType is - System.String&
For parameter # 2, the ParameterType is - System.String&
 */

Imports System.Reflection

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 = 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 ParameterInfo of each parameter.
        Dim Myparam As ParameterInfo
        For Each Myparam In  Myarray
            Console.Write(ControlChars.CrLf _
               + "For parameter # " + Myparam.Position.ToString() _
               + ", the ParameterType is - " + Myparam.ParameterType.ToString())
        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 ParameterType is - System.Int32
' For parameter # 1, the ParameterType is - System.String&
' For parameter # 2, the ParameterType is - System.String&

Opmerkingen

Deze methode is afhankelijk van een optionele metagegevens en is mogelijk niet beschikbaar in alle compilers.

Als u de ParameterInfo matrix wilt ophalen, moet u eerst de methode of de constructor ophalen en vervolgens aanroepen MethodBase.GetParameters.