PropertyInfo.GetAccessors Método
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Devuelve una matriz de los descriptores de acceso get
y set
en esta propiedad.
Sobrecargas
GetAccessors() |
Devuelve una matriz cuyos elementos reflejan los descriptores de acceso públicos |
GetAccessors(Boolean) |
Devuelve una matriz cuyos elementos reflejan los descriptores de acceso públicos y, si se especifica, no públicos, |
GetAccessors()
- Source:
- PropertyInfo.cs
- Source:
- PropertyInfo.cs
- Source:
- PropertyInfo.cs
Devuelve una matriz cuyos elementos reflejan los descriptores de acceso públicos get
y set
de la propiedad que refleja la instancia actual.
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()
Devoluciones
Matriz de objetos MethodInfo que refleja los descriptores de acceso públicos get
y set
de la propiedad que refleja la instancia actual, si se encuentran; en caso contrario, este método devuelve una matriz con cero (0) elementos.
Implementaciones
Ejemplos
En el ejemplo siguiente se recuperan los descriptores de acceso públicos de la ClassWithProperty.Caption
propiedad y se muestra información sobre ellos. También llama al Invoke método del establecedor para establecer el valor de propiedad y del captador para recuperar el valor de propiedad.
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
Comentarios
Para llamar al GetAccessors método :
Obtiene un Type objeto que representa la clase .
En el Type objeto , obtenga el PropertyInfo objeto .
Desde el PropertyInfo objeto , llame al GetAccessors método .
Se aplica a
GetAccessors(Boolean)
- Source:
- PropertyInfo.cs
- Source:
- PropertyInfo.cs
- Source:
- PropertyInfo.cs
Devuelve una matriz cuyos elementos reflejan los descriptores de acceso públicos y, si se especifica, no públicos, get
y set
de la propiedad que refleja la instancia actual.
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()
Parámetros
- nonPublic
- Boolean
Indica si se deben devolver métodos no públicos en la matriz devuelta.
true
si los métodos no públicos deben incluirse; de lo contrario, false
.
Devoluciones
Matriz cuyos elementos reflejan los descriptores de acceso get
y set
de la propiedad que refleja la instancia actual. Si nonPublic
es true
, esta matriz contiene los descriptores de acceso públicos y no públicos get
y set
. Si nonPublic
es false
, esta matriz contiene solo los descriptores de acceso públicos get
y set
. Si no se encuentran descriptores de acceso con la visibilidad especificada, este método devuelve una matriz con cero (0) elementos.
Implementaciones
Ejemplos
En el ejemplo siguiente se recuperan los descriptores de acceso de la ClassWithProperty.Caption
propiedad y se muestra información sobre ellos. También llama al Invoke método del establecedor para establecer el valor de propiedad y del captador para recuperar el valor de propiedad.
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
Comentarios
Para llamar al GetAccessors método :
Obtiene un Type objeto que representa la clase .
En el Type objeto , obtenga el PropertyInfo objeto .
Desde el PropertyInfo objeto , llame al GetAccessors método .