ConstructorInfo 클래스
클래스 생성자의 특성을 검색하고 생성자 메타데이터에 대한 액세스를 제공합니다.
네임스페이스: System.Reflection
어셈블리: mscorlib(mscorlib.dll)
구문
‘선언
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
<ClassInterfaceAttribute(ClassInterfaceType.None)> _
Public MustInherit Class ConstructorInfo
Inherits MethodBase
Implements _ConstructorInfo
‘사용 방법
Dim instance As ConstructorInfo
[SerializableAttribute]
[ComVisibleAttribute(true)]
[ClassInterfaceAttribute(ClassInterfaceType.None)]
public abstract class ConstructorInfo : MethodBase, _ConstructorInfo
[SerializableAttribute]
[ComVisibleAttribute(true)]
[ClassInterfaceAttribute(ClassInterfaceType::None)]
public ref class ConstructorInfo abstract : public MethodBase, _ConstructorInfo
/** @attribute SerializableAttribute() */
/** @attribute ComVisibleAttribute(true) */
/** @attribute ClassInterfaceAttribute(ClassInterfaceType.None) */
public abstract class ConstructorInfo extends MethodBase implements _ConstructorInfo
SerializableAttribute
ComVisibleAttribute(true)
ClassInterfaceAttribute(ClassInterfaceType.None)
public abstract class ConstructorInfo extends MethodBase implements _ConstructorInfo
설명
ConstructorInfo는 생성자 호출은 물론 생성자의 특성 검색에도 사용됩니다. 개체는 Type 개체의 GetConstructors 또는 GetConstructor 메서드가 반환한 ConstructorInfo에서 Invoke를 호출하여 만들어집니다.
참고
ConstructorInfo는 IsGenericMethod와 같이 제네릭 메서드를 검사하는 데 사용할 수 있는 MethodBase의 여러 멤버에서 상속합니다. .NET Framework 버전 2.0에서는 생성자가 제네릭일 수 없으므로 이러한 멤버는 false 또는 Null 참조(Visual Basic의 경우 Nothing)을 반환합니다.
상속자 참고 사항 ConstructorInfo에서 상속하는 경우 Invoke(BindingFlags,Binder,Object[],CultureInfo) 멤버 오버로드를 재정의해야 합니다.
예제
다음 예제에서는 ConstructorInfo를 GetConstructor 및 BindingFlags와 함께 사용하여 지정된 검색 조건과 일치하는 생성자를 찾습니다.
Public Class MyClass1
Public Sub New(ByVal i As Integer)
End Sub
Public Shared Sub Main()
Try
Dim myType As Type = GetType(MyClass1)
Dim types(0) As Type
types(0) = GetType(Integer)
' Get the public instance constructor that takes an integer parameter.
Dim constructorInfoObj As ConstructorInfo = _
myType.GetConstructor(BindingFlags.Instance Or _
BindingFlags.Public, Nothing, _
CallingConventions.HasThis, types, Nothing)
If Not (constructorInfoObj Is Nothing) Then
Console.WriteLine("The constructor of MyClass1 that " + _
"is a public instance method and takes an " + _
"integer as a parameter is: ")
Console.WriteLine(constructorInfoObj.ToString())
Else
Console.WriteLine("The constructor MyClass1 that " + _
"is a public instance method and takes an " + _
"integer as a parameter is not available.")
End If
Catch e As ArgumentNullException
Console.WriteLine("ArgumentNullException: " + e.Message)
Catch e As ArgumentException
Console.WriteLine("ArgumentException: " + e.Message)
Catch e As SecurityException
Console.WriteLine("SecurityException: " + e.Message)
Catch e As Exception
Console.WriteLine("Exception: " + e.Message)
End Try
End Sub
End Class
using System;
using System.Reflection;
using System.Security;
public class MyClass1
{
public MyClass1(int i){}
public static void Main()
{
try
{
Type myType = typeof(MyClass1);
Type[] types = new Type[1];
types[0] = typeof(int);
// Get the public instance constructor that takes an integer parameter.
ConstructorInfo constructorInfoObj = myType.GetConstructor(
BindingFlags.Instance | BindingFlags.Public, null,
CallingConventions.HasThis, types, null);
if(constructorInfoObj != null)
{
Console.WriteLine("The constructor of MyClass1 that is a public " +
"instance method and takes an integer as a parameter is: ");
Console.WriteLine(constructorInfoObj.ToString());
}
else
{
Console.WriteLine("The constructor of MyClass1 that is a public instance " +
"method and takes an integer as a parameter is not available.");
}
}
catch(ArgumentNullException e)
{
Console.WriteLine("ArgumentNullException: " + e.Message);
}
catch(ArgumentException e)
{
Console.WriteLine("ArgumentException: " + e.Message);
}
catch(SecurityException e)
{
Console.WriteLine("SecurityException: " + e.Message);
}
catch(Exception e)
{
Console.WriteLine("Exception: " + e.Message);
}
}
}
using namespace System;
using namespace System::Reflection;
using namespace System::Security;
public ref class MyClass1
{
public:
MyClass1( int i ){}
};
int main()
{
try
{
Type^ myType = MyClass1::typeid;
array<Type^>^types = gcnew array<Type^>(1);
types[ 0 ] = int::typeid;
// Get the public instance constructor that takes an integer parameter.
ConstructorInfo^ constructorInfoObj = myType->GetConstructor( static_cast<BindingFlags>(BindingFlags::Instance | BindingFlags::Public), nullptr, CallingConventions::HasThis, types, nullptr );
if ( constructorInfoObj != nullptr )
{
Console::WriteLine( "The constructor of MyClass1 that is a public instance method and takes an integer as a parameter is: " );
Console::WriteLine( constructorInfoObj );
}
else
{
Console::WriteLine( "The constructor of MyClass1 that is a public instance method and takes an integer as a parameter is not available." );
}
}
catch ( ArgumentNullException^ e )
{
Console::WriteLine( "ArgumentNullException: {0}", e->Message );
}
catch ( ArgumentException^ e )
{
Console::WriteLine( "ArgumentException: {0}", e->Message );
}
catch ( SecurityException^ e )
{
Console::WriteLine( "SecurityException: {0}", e->Message );
}
catch ( Exception^ e )
{
Console::WriteLine( "Exception: {0}", e->Message );
}
}
import System.*;
import System.Reflection.*;
import System.Security.*;
public class MyClass1
{
public MyClass1(int i)
{
} //MyClass1
public static void main(String[] args)
{
try {
Type myType = MyClass1.class.ToType();
Type types[] = new Type[1];
types.set_Item(0, int.class.ToType());
// Get the public instance constructor that takes an
// integer parameter.
ConstructorInfo constructorInfoObj =
myType.GetConstructor(BindingFlags.Instance|BindingFlags.Public,
null, CallingConventions.HasThis, types, null);
if (constructorInfoObj != null) {
Console.WriteLine("The constructor of MyClass1 that is a public "
+ "instance method and takes an integer as a parameter is: ");
Console.WriteLine(constructorInfoObj.ToString());
}
else {
Console.WriteLine("The constructor of MyClass1 that is a "
+ "public instance method and takes an integer "
+ "as a parameter is not available.");
}
}
catch (ArgumentNullException e) {
Console.WriteLine("ArgumentNullException: " + e.get_Message());
}
catch (ArgumentException e) {
Console.WriteLine("ArgumentException: " + e.get_Message());
}
catch (SecurityException e) {
Console.WriteLine("SecurityException: " + e.get_Message());
}
catch (System.Exception e) {
Console.WriteLine("Exception: " + e.get_Message());
}
} //main
} //MyClass1
상속 계층 구조
System.Object
System.Reflection.MemberInfo
System.Reflection.MethodBase
System.Reflection.ConstructorInfo
Microsoft.JScript.JSConstructor
System.Reflection.Emit.ConstructorBuilder
스레드로부터의 안전성
이 형식은 다중 스레드 작업을 수행하는 데 안전합니다.
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