PropertyInfo.CanRead 속성
속성을 읽을 수 있는지 여부를 나타내는 값을 가져옵니다.
네임스페이스: System.Reflection
어셈블리: mscorlib(mscorlib.dll)
구문
‘선언
Public MustOverride ReadOnly Property CanRead As Boolean
‘사용 방법
Dim instance As PropertyInfo
Dim value As Boolean
value = instance.CanRead
public abstract bool CanRead { get; }
public:
virtual property bool CanRead {
bool get () abstract;
}
/** @property */
public abstract boolean get_CanRead ()
public abstract function get CanRead () : boolean
속성 값
이 속성을 읽을 수 있으면 true이고, 그렇지 않으면 false입니다.
설명
이 속성에 get 접근자가 없으면 읽을 수 없습니다.
CanRead 속성을 가져오려면 먼저 Type 클래스를 가져옵니다. Type에서 PropertyInfo를 가져옵니다. PropertyInfo에서 CanRead 값을 가져옵니다.
예제
다음 예제에서는 두 개의 속성을 정의합니다. 첫 번째 속성은 읽을 수 있고 CanRead 속성은 true입니다. 두 번째 속성은 읽을 수 없고(접근자가 없음) CanRead 속성은 false입니다.
Imports System
Imports System.Reflection
Imports Microsoft.VisualBasic
' Define one readable property and one not readable.
Public Class Mypropertya
Private myCaption As String = "A Default caption"
Public Property Caption() As String
Get
Return myCaption
End Get
Set(ByVal Value As String)
If myCaption <> value Then
myCaption = value
End If
End Set
End Property
End Class
Public Class Mypropertyb
Private myCaption As String = "B Default caption"
Public WriteOnly Property Caption() As String
Set(ByVal Value As String)
If myCaption <> value Then
myCaption = value
End If
End Set
End Property
End Class
Class Mypropertyinfo
Public Shared Function Main() As Integer
Console.WriteLine(ControlChars.CrLf & "Reflection.PropertyInfo")
' Define two properties.
Dim Mypropertya As New Mypropertya()
Dim Mypropertyb As New Mypropertyb()
Console.Write(ControlChars.Cr & "Mypropertya.Caption = " & _
Mypropertya.Caption)
' Mypropertyb.Caption cannot be read because
' there is no get accessor.
' Get the type and PropertyInfo.
Dim MyTypea As Type = Type.GetType("Mypropertya")
Dim Mypropertyinfoa As PropertyInfo = MyTypea.GetProperty("Caption")
Dim MyTypeb As Type = Type.GetType("Mypropertyb")
Dim Mypropertyinfob As PropertyInfo = MyTypeb.GetProperty("Caption")
' Get and display the CanRead property.
Console.Write(ControlChars.CrLf & "CanRead a - " & _
Mypropertyinfoa.CanRead)
Console.Write(ControlChars.CrLf & "CanRead b - " & _
Mypropertyinfob.CanRead)
Return 0
End Function
End Class
using System;
using System.Reflection;
// Define one readable property and one not readable.
public class Mypropertya
{
private string caption = "A Default caption";
public string Caption
{
get{return caption;}
set {if(caption!=value) {caption = value;}
}
}
}
public class Mypropertyb
{
private string caption = "B Default caption";
public string Caption
{
set{if(caption!=value) {caption = value;}
}
}
}
class Mypropertyinfo
{
public static int Main()
{
Console.WriteLine("\nReflection.PropertyInfo");
// Define two properties.
Mypropertya Mypropertya = new Mypropertya();
Mypropertyb Mypropertyb = new Mypropertyb();
Console.Write("\nMypropertya.Caption = " + Mypropertya.Caption);
// Mypropertyb.Caption cannot be read, because
// there is no get accessor.
// Get the type and PropertyInfo.
Type MyTypea = Type.GetType("Mypropertya");
PropertyInfo Mypropertyinfoa = MyTypea.GetProperty("Caption");
Type MyTypeb = Type.GetType("Mypropertyb");
PropertyInfo Mypropertyinfob = MyTypeb.GetProperty("Caption");
// Get and display the CanRead property.
Console.Write("\nCanRead a - " + Mypropertyinfoa.CanRead);
Console.Write("\nCanRead b - " + Mypropertyinfob.CanRead);
return 0;
}
}
using namespace System;
using namespace System::Reflection;
// Define one readable property and one not readable.
public ref class Mypropertya
{
private:
String^ caption;
public:
Mypropertya()
: caption( "A Default caption" )
{}
property String^ Caption
{
String^ get()
{
return caption;
}
void set( String^ value )
{
if ( caption != value )
{
caption = value;
}
}
}
};
public ref class Mypropertyb
{
private:
String^ caption;
public:
Mypropertyb()
: caption( "B Default caption" )
{}
property String^ Caption
{
void set( String^ value )
{
if ( caption != value )
{
caption = value;
}
}
}
};
int main()
{
Console::WriteLine( "\nReflection.PropertyInfo" );
// Define two properties.
Mypropertya^ mypropertya = gcnew Mypropertya;
Mypropertyb^ mypropertyb = gcnew Mypropertyb;
Console::Write( "\nMypropertya->Caption = {0}", mypropertya->Caption );
// Mypropertyb.Caption cannot be read, because
// there is no get accessor.
// Get the type and PropertyInfo.
Type^ MyTypea = Type::GetType( "Mypropertya" );
PropertyInfo^ Mypropertyinfoa = MyTypea->GetProperty( "Caption" );
Type^ MyTypeb = Type::GetType( "Mypropertyb" );
PropertyInfo^ Mypropertyinfob = MyTypeb->GetProperty( "Caption" );
// Get and display the CanRead property.
Console::Write( "\nCanRead a - {0}", Mypropertyinfoa->CanRead );
Console::Write( "\nCanRead b - {0}", Mypropertyinfob->CanRead );
return 0;
}
import System.*;
import System.Reflection.*;
// Define one readable property and one not readable.
public class MyPropertyA
{
private String caption = "A Default caption";
/** @property
*/
public String get_Caption()
{
return caption ;
} //get_Caption
/** @property
*/
public void set_Caption (String value)
{
if (caption != value) {
caption = value;
}
} //set_Caption
} //MyPropertyA
public class MyPropertyB
{
private String caption = "B Default caption";
/** @property
*/
public void set_Caption (String value)
{
if ( caption != value ) {
caption = value;
}
} //set_Caption
} //MyPropertyB
class MyPropertyInfo
{
public static void main(String[] args)
{
Console.WriteLine("\nReflection.PropertyInfo");
// Define two properties.
MyPropertyA myPropertyA = new MyPropertyA();
MyPropertyB myPropertyB = new MyPropertyB();
Console.Write(("\nMyPropertyA.Caption = "
+ myPropertyA.get_Caption()));
// MyPropertyB.Caption cannot be read, because
// there is no get accessor.
// Get the type and PropertyInfo.
Type myTypeA = Type.GetType("MyPropertyA");
PropertyInfo myPropertyInfoA = myTypeA.GetProperty("Caption");
Type myTypeB = Type.GetType("MyPropertyB");
PropertyInfo myPropertyInfoB = myTypeB.GetProperty("Caption");
// Get and display the CanRead property.
Console.Write(("\nCanRead A - "
+ System.Convert.ToString(myPropertyInfoA.get_CanRead())));
Console.Write(("\nCanRead B - "
+ System.Convert.ToString(myPropertyInfoB.get_CanRead())));
} //main
} //MyPropertyInfo
import System;
import System.Reflection;
//Make two properties, one readable and on not readable
public class Mypropertya
{
private var caption : String = "A Default caption";
public function get Caption() : String {
return caption;
}
public function set Caption(value:String)
{
if(caption!=value) {caption = value;}
}
}
public class Mypropertyb
{
private var caption : String = "B Default caption";
public function set Caption(value:String) {
if(caption!=value) {caption = value;}
}
}
class Mypropertyinfo
{
public static function Main() : void
{
Console.WriteLine("\nReflection.PropertyInfo");
//Build two properties
var mypropertya : Mypropertya = new Mypropertya();
var mypropertyb : Mypropertyb = new Mypropertyb();
Console.Write("\nmypropertya.Caption = " + mypropertya.Caption);
//Note: Mypropertyb.Caption cannot be read as
// there is no get accessor
//Get the type and PropertyInfo
var MyTypea : Type = Type.GetType("Mypropertya");
var Mypropertyinfoa : PropertyInfo = MyTypea.GetProperty("Caption");
var MyTypeb : Type = Type.GetType("Mypropertyb");
var Mypropertyinfob : PropertyInfo = MyTypeb.GetProperty("Caption");
//Get and display the CanRead property
Console.Write("\nCanRead a - " + Mypropertyinfoa.CanRead);
Console.Write("\nCanRead b - " + Mypropertyinfob.CanRead);
}
}
Mypropertyinfo.Main();
/*
Produces the following output
Reflection.PropertyInfo
Mypropertya.Caption = A Default caption
CanRead a - True
CanRead b - False
*/
플랫폼
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.
버전 정보
.NET Framework
2.0, 1.1, 1.0에서 지원
.NET Compact Framework
2.0, 1.0에서 지원