PropertyInfo.GetAccessors Méthode

Référence

Définition

Espace de noms:: System.Reflection

Assembly:: System.Runtime.dll

Assembly:: System.Reflection.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

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Retourne un tableau d'accesseurs get et set sur cette propriété.

Surcharges

GetAccessors()	Retourne un tableau dont les éléments réfléchissent les accesseurs publics `get` et `set` de la propriété réfléchie par l’instance actuelle.
GetAccessors(Boolean)	Retourne un tableau dont les éléments réfléchissent les accesseurs `get`, `set` publics et, le cas échéant, non publics, ainsi que d’autres accesseurs de la propriété réfléchie par l’instance actuelle.

GetAccessors()

Source:: PropertyInfo.cs

Source:: PropertyInfo.cs

Source:: PropertyInfo.cs

Retourne un tableau dont les éléments réfléchissent les accesseurs publics get et set de la propriété réfléchie par l’instance actuelle.

public:
 cli::array <System::Reflection::MethodInfo ^> ^ GetAccessors();

public:
 virtual cli::array <System::Reflection::MethodInfo ^> ^ GetAccessors();

public System.Reflection.MethodInfo[] GetAccessors ();

member this.GetAccessors : unit -> System.Reflection.MethodInfo[]

abstract member GetAccessors : unit -> System.Reflection.MethodInfo[]
override this.GetAccessors : unit -> System.Reflection.MethodInfo[]

Public Function GetAccessors () As MethodInfo()

Retours

MethodInfo[]

Tableau d’objets MethodInfo qui réfléchissent les accesseurs publics get et set de la propriété réfléchie par l’instance actuelle, le cas échéant ; sinon, cette méthode retourne un tableau avec zéro (0) élément.

Implémente

GetAccessors()

Exemples

L’exemple suivant récupère les accesseurs publics de la ClassWithProperty.Caption propriété et affiche des informations les concernant. Il appelle également la Invoke méthode du setter pour définir la valeur de la propriété et du getter pour récupérer la valeur de la propriété.

using System;
using System.Reflection;
 
// Define a property.
public class ClassWithProperty
{
    private string _caption = "A Default caption";

    public string Caption
    {
        get { return _caption; }
        set { if(_caption != value) _caption = value; }
    }
}
 
class Example
{
    public static void Main()
    {
        ClassWithProperty test = new ClassWithProperty();
        Console.WriteLine("The Caption property: {0}", test.Caption);
        Console.WriteLine("----------");
        // Get the type and PropertyInfo.
        Type t = Type.GetType("ClassWithProperty");
        PropertyInfo propInfo = t.GetProperty("Caption");
 
        // Get the public GetAccessors method.
        MethodInfo[] methInfos = propInfo.GetAccessors();
        Console.WriteLine("There are {0} accessors.",
                          methInfos.Length);
        for(int ctr = 0; ctr < methInfos.Length; ctr++) {
           MethodInfo m = methInfos[ctr];
           Console.WriteLine("Accessor #{0}:", ctr + 1);
           Console.WriteLine("   Name: {0}", m.Name);
           Console.WriteLine("   Visibility: {0}", GetVisibility(m));
           Console.Write("   Property Type: ");
           // Determine if this is the property getter or setter.
           if (m.ReturnType == typeof(void)) {
              Console.WriteLine("Setter");
              Console.WriteLine("   Setting the property value.");
              //  Set the value of the property.
              m.Invoke(test, new object[] { "The Modified Caption" } );
           }
           else {
              Console.WriteLine("Getter");
              // Get the value of the property.
              Console.WriteLine("   Property Value: {0}",
                                m.Invoke(test, new object[] {} ));
           }
        }
        Console.WriteLine("----------");
        Console.WriteLine("The Caption property: {0}", test.Caption);
    }

    static string GetVisibility(MethodInfo m)
    {
       string visibility = "";
       if (m.IsPublic)
          return "Public";
       else if (m.IsPrivate)
          return "Private";
       else
          if (m.IsFamily)
             visibility = "Protected ";
          else if (m.IsAssembly)
             visibility += "Assembly";
       return visibility;
    }
}
// The example displays the following output:
//       The Caption property: A Default caption
//       ----------
//       There are 2 accessors.
//       Accessor #1:
//          Name: get_Caption
//          Visibility: Public
//          Property Type: Getter
//          Property Value: A Default caption
//       Accessor #2:
//          Name: set_Caption
//          Visibility: Public
//          Property Type: Setter
//          Setting the property value.
//       ----------
//       The Caption property: The Modified Caption

Imports System.Reflection

' Define a property.
Public Class ClassWithProperty
    Private _caption As String = "A Default caption"

    Public Property Caption As String
        Get
            Return _caption
        End Get
        Set
            If _caption <> value Then _caption = value
        End Set
    End Property
End Class

Module Example
    Public Sub Main()
        Dim test As New ClassWithProperty()
        Console.WriteLine("The Caption property: {0}", test.Caption)
        Console.WriteLine("----------")
        ' Get the type and PropertyInfo.
        Dim t As Type = Type.GetType("ClassWithProperty")
        Dim propInfo As PropertyInfo = t.GetProperty("Caption")

        ' Get all the accessors.
        Dim methInfos() As MethodInfo = propInfo.GetAccessors()
        Console.WriteLine("There are {0} accessors.",
                          methInfos.Length)
        For ctr As Integer = 0 To methInfos.Length - 1
           Dim m As MethodInfo = methInfos(ctr)
           Console.WriteLine("Accessor #{0}:", ctr + 1)
           Console.WriteLine("   Name: {0}", m.Name)
           Console.WriteLine("   Visibility: {0}", GetVisibility(m))
           Console.Write("   Property Type: ")
           ' Determine if this is the property getter or setter.
''           If (m.ReturnType == typeof(void))
           If m.ReturnType Is GetType(Void) Then
              Console.WriteLine("Setter")
              Console.WriteLine("   Setting the property value.")
              ' Set the value of the property.
              m.Invoke(test, { "The Modified Caption" } )
           Else
              Console.WriteLine("Getter")
              ' Get the value of the property.
              Console.WriteLine("   Property Value: {0}",
                                m.Invoke(test, {} ))
           End If
        Next
        Console.WriteLine("----------")
        Console.WriteLine("The Caption property: {0}", test.Caption)
    End Sub
    
    Private Function GetVisibility(m As MethodInfo) As String
       Dim visibility As String = ""
       If m.IsPublic Then
          Return "Public"
       ElseIf m.IsPrivate Then
          Return "Private"
       Else
          If m.IsFamily Then
             visibility = "Protected "
          ElseIf m.IsAssembly Then
             visibility += "Assembly"
          End If
       End If
       Return visibility
    End Function
End Module
' The example displays the following output:
'       The Caption property: A Default caption
'       ----------
'       There are 2 accessors.
'       Accessor #1:
'          Name: get_Caption
'          Visibility: Public
'          Property Type: Getter
'          Property Value: A Default caption
'       Accessor #2:
'          Name: set_Caption
'          Visibility: Public
'          Property Type: Setter
'          Setting the property value.
'       ----------
'       The Caption property: The Modified Caption

Remarques

Pour appeler la GetAccessors méthode :

Obtient un Type objet qui représente la classe .
À partir de l’objet Type , récupérez l’objet PropertyInfo .
À partir de l’objet PropertyInfo , appelez la GetAccessors méthode .

S’applique à

GetAccessors(Boolean)

Source:: PropertyInfo.cs

Source:: PropertyInfo.cs

Source:: PropertyInfo.cs

Retourne un tableau dont les éléments réfléchissent les accesseurs get, set publics et, le cas échéant, non publics, ainsi que d’autres accesseurs de la propriété réfléchie par l’instance actuelle.

public:
 abstract cli::array <System::Reflection::MethodInfo ^> ^ GetAccessors(bool nonPublic);

public abstract System.Reflection.MethodInfo[] GetAccessors (bool nonPublic);

abstract member GetAccessors : bool -> System.Reflection.MethodInfo[]

Public MustOverride Function GetAccessors (nonPublic As Boolean) As MethodInfo()

Paramètres

nonPublic: Boolean

Indique si des méthodes non publiques doivent être retournées dans le tableau retourné. true si les méthodes non publiques doivent être incluses ; sinon, false.

Retours

MethodInfo[]

Tableau dont les éléments réfléchissent les accesseurs get et set de la propriété réfléchie par l’instance actuelle. Si nonPublic a la valeur true, ce tableau contient des accesseurs get et set publics et non publics. Si nonPublic a la valeur false, ce tableau contient uniquement les accesseurs get et set. Si aucun accesseur avec la visibilité spécifiée n'est trouvé, cette méthode retourne un tableau avec zéro (0) éléments.

Implémente

GetAccessors(Boolean)

Exemples

L’exemple suivant récupère les accesseurs de la ClassWithProperty.Caption propriété et affiche des informations les concernant. Il appelle également la Invoke méthode du setter pour définir la valeur de la propriété et du getter pour récupérer la valeur de la propriété.

using System;
using System.Reflection;

// Define a property.
public class ClassWithProperty
{
    private string _caption = "A Default caption";

    public string Caption
    {
        get { return _caption; }
        set { if(_caption != value) _caption = value; }
    }
}

class Example
{
    public static void Main()
    {
        ClassWithProperty test = new ClassWithProperty();
        Console.WriteLine("The Caption property: {0}", test.Caption);
        Console.WriteLine("----------");
        // Get the type and PropertyInfo.
        Type t = Type.GetType("ClassWithProperty");
        PropertyInfo propInfo = t.GetProperty("Caption");

        // Get the public GetAccessors method.
        MethodInfo[] methInfos = propInfo.GetAccessors(true);
        Console.WriteLine("There are {0} accessors.",
                          methInfos.Length);
        for(int ctr = 0; ctr < methInfos.Length; ctr++) {
           MethodInfo m = methInfos[ctr];
           Console.WriteLine("Accessor #{0}:", ctr + 1);
           Console.WriteLine("   Name: {0}", m.Name);
           Console.WriteLine("   Visibility: {0}", GetVisibility(m));
           Console.Write("   Property Type: ");
           // Determine if this is the property getter or setter.
           if (m.ReturnType == typeof(void)) {
              Console.WriteLine("Setter");
              Console.WriteLine("   Setting the property value.");
              //  Set the value of the property.
              m.Invoke(test, new object[] { "The Modified Caption" } );
           }
           else {
              Console.WriteLine("Getter");
              // Get the value of the property.
              Console.WriteLine("   Property Value: {0}",
                                m.Invoke(test, new object[] {} ));
           }
        }
        Console.WriteLine("----------");
        Console.WriteLine("The Caption property: {0}", test.Caption);
    }

    static string GetVisibility(MethodInfo m)
    {
       string visibility = "";
       if (m.IsPublic)
          return "Public";
       else if (m.IsPrivate)
          return "Private";
       else
          if (m.IsFamily)
             visibility = "Protected ";
          else if (m.IsAssembly)
             visibility += "Assembly";
       return visibility;
    }
}
// The example displays the following output:
//       The Caption property: A Default caption
//       ----------
//       There are 2 accessors.
//       Accessor #1:
//          Name: get_Caption
//          Visibility: Public
//          Property Type: Getter
//          Property Value: A Default caption
//       Accessor #2:
//          Name: set_Caption
//          Visibility: Public
//          Property Type: Setter
//          Setting the property value.
//       ----------
//       The Caption property: The Modified Caption

Imports System.Reflection

' Define a property.
Public Class ClassWithProperty
    Private _caption As String = "A Default caption"

    Public Property Caption As String
        Get
            Return _caption
        End Get
        Set
            If _caption <> value Then _caption = value
        End Set
    End Property
End Class

Module Example
    Public Sub Main()
        Dim test As New ClassWithProperty()
        Console.WriteLine("The Caption property: {0}", test.Caption)
        Console.WriteLine("----------")
        ' Get the type and PropertyInfo.
        Dim t As Type = Type.GetType("ClassWithProperty")
        Dim propInfo As PropertyInfo = t.GetProperty("Caption")

        ' Get all the accessors.
        Dim methInfos() As MethodInfo = propInfo.GetAccessors(True)
        Console.WriteLine("There are {0} accessors.",
                          methInfos.Length)
        For ctr As Integer = 0 To methInfos.Length - 1
           Dim m As MethodInfo = methInfos(ctr)
           Console.WriteLine("Accessor #{0}:", ctr + 1)
           Console.WriteLine("   Name: {0}", m.Name)
           Console.WriteLine("   Visibility: {0}", GetVisibility(m))
           Console.Write("   Property Type: ")
           ' Determine if this is the property getter or setter.
''           If (m.ReturnType == typeof(void))
           If m.ReturnType Is GetType(Void) Then
              Console.WriteLine("Setter")
              Console.WriteLine("   Setting the property value.")
              ' Set the value of the property.
              m.Invoke(test, { "The Modified Caption" } )
           Else
              Console.WriteLine("Getter")
              ' Get the value of the property.
              Console.WriteLine("   Property Value: {0}",
                                m.Invoke(test, {} ))
           End If
        Next
        Console.WriteLine("----------")
        Console.WriteLine("The Caption property: {0}", test.Caption)
    End Sub
    
    Private Function GetVisibility(m As MethodInfo) As String
       Dim visibility As String = ""
       If m.IsPublic Then
          Return "Public"
       ElseIf m.IsPrivate Then
          Return "Private"
       Else
          If m.IsFamily Then
             visibility = "Protected "
          ElseIf m.IsAssembly Then
             visibility += "Assembly"
          End If
       End If
       Return visibility
    End Function
End Module
' The example displays the following output:
'       The Caption property: A Default caption
'       ----------
'       There are 2 accessors.
'       Accessor #1:
'          Name: get_Caption
'          Visibility: Public
'          Property Type: Getter
'          Property Value: A Default caption
'       Accessor #2:
'          Name: set_Caption
'          Visibility: Public
'          Property Type: Setter
'          Setting the property value.
'       ----------
'       The Caption property: The Modified Caption

Remarques

Pour appeler la GetAccessors méthode :

Obtient un Type objet qui représente la classe .
À partir de l’objet Type , récupérez l’objet PropertyInfo .
À partir de l’objet PropertyInfo , appelez la GetAccessors méthode .

S’applique à

PropertyInfo.GetAccessors Méthode

Définition

Surcharges

GetAccessors()

Retours

Implémente

Exemples

Remarques

S’applique à

GetAccessors(Boolean)

Paramètres

Retours

Implémente

Exemples

Remarques

S’applique à

Commentaires

Ressources supplémentaires