ConstructorBuilder.DeclaringType 屬性
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
針對宣告此成員的類型,取得 Type 物件的參考。
public:
virtual property Type ^ DeclaringType { Type ^ get(); };
public override Type? DeclaringType { get; }
public override Type DeclaringType { get; }
member this.DeclaringType : Type
Public Overrides ReadOnly Property DeclaringType As Type
屬性值
宣告這個成員的型別。
備註
類別 (或介面) 的成員是宣告或繼承自基類 (或介面) 。
下列程式代碼範例說明 如何使用 DeclaringType
。
MethodBuilder^ myMethodBuilder = nullptr;
AppDomain^ myCurrentDomain = AppDomain::CurrentDomain;
// Create assembly in current CurrentDomain
AssemblyName^ myAssemblyName = gcnew AssemblyName;
myAssemblyName->Name = "TempAssembly";
// Create a dynamic assembly
myAssemblyBuilder = myCurrentDomain->DefineDynamicAssembly(
myAssemblyName, AssemblyBuilderAccess::RunAndSave );
// Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder->DefineDynamicModule( "TempModule" );
FieldInfo^ myFieldInfo =
myModuleBuilder->DefineUninitializedData( "myField", 2, FieldAttributes::Public );
// Create a type in the module
TypeBuilder^ myTypeBuilder = myModuleBuilder->DefineType( "TempClass", TypeAttributes::Public );
FieldBuilder^ myGreetingField = myTypeBuilder->DefineField( "Greeting",
String::typeid, FieldAttributes::Public );
array<Type^>^myConstructorArgs = {String::typeid};
// Define a constructor of the dynamic class.
ConstructorBuilder^ myConstructor = myTypeBuilder->DefineConstructor(
MethodAttributes::Public, CallingConventions::Standard, myConstructorArgs );
PermissionSet^ myPset = gcnew PermissionSet( PermissionState::Unrestricted );
// Add declarative security to the constructor.
Console::WriteLine( "Adding declarative security to the constructor....." );
Console::WriteLine( "The Security action to be taken is \"DENY\" and" +
" Permission set is \"UNRESTRICTED\"." );
myConstructor->AddDeclarativeSecurity( SecurityAction::Deny, myPset );
MethodAttributes myMethodAttributes = myConstructor->Attributes;
Type^ myAttributeType = MethodAttributes::typeid;
int myAttribValue = (int)myMethodAttributes;
if ( !myAttributeType->IsEnum )
{
Console::WriteLine( "This is not an Enum" );
}
array<FieldInfo^>^myFieldInfo1 = myAttributeType->GetFields( static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Static) );
Console::WriteLine( "The Field info names of the Attributes for the constructor are:" );
for ( int i = 0; i < myFieldInfo1->Length; i++ )
{
int myFieldValue = *dynamic_cast<Int32^>(myFieldInfo1[ i ]->GetValue( nullptr ));
if ( (myFieldValue & myAttribValue) == myFieldValue )
{
Console::WriteLine( " {0}", myFieldInfo1[ i ]->Name );
}
}
Type^ myType2 = myConstructor->DeclaringType;
Console::WriteLine( "The declaring type is : {0}", myType2 );
MethodBuilder myMethodBuilder=null;
AppDomain myCurrentDomain = AppDomain.CurrentDomain;
// Create assembly in current CurrentDomain
AssemblyName myAssemblyName = new AssemblyName();
myAssemblyName.Name = "TempAssembly";
// Create a dynamic assembly
myAssemblyBuilder = myCurrentDomain.DefineDynamicAssembly
(myAssemblyName, AssemblyBuilderAccess.RunAndSave);
// Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule");
FieldInfo myFieldInfo =
myModuleBuilder.DefineUninitializedData("myField",2,FieldAttributes.Public);
// Create a type in the module
TypeBuilder myTypeBuilder = myModuleBuilder.DefineType("TempClass",TypeAttributes.Public);
FieldBuilder myGreetingField = myTypeBuilder.DefineField("Greeting",
typeof(String), FieldAttributes.Public);
Type[] myConstructorArgs = { typeof(String) };
// Define a constructor of the dynamic class.
ConstructorBuilder myConstructor = myTypeBuilder.DefineConstructor(
MethodAttributes.Public, CallingConventions.Standard, myConstructorArgs);
PermissionSet myPset = new PermissionSet(PermissionState.Unrestricted);
// Add declarative security to the constructor.
Console.WriteLine("Adding declarative security to the constructor.....");
Console.WriteLine("The Security action to be taken is \"DENY\" and" +
" Permission set is \"UNRESTRICTED\".");
myConstructor.AddDeclarativeSecurity(SecurityAction.Deny,myPset);
MethodAttributes myMethodAttributes = myConstructor.Attributes;
Type myAttributeType = typeof(MethodAttributes);
int myAttribValue = (int) myMethodAttributes;
if (!myAttributeType.IsEnum)
{
Console.WriteLine("This is not an Enum");
}
FieldInfo[] myFieldInfo1 = myAttributeType.GetFields(BindingFlags.Public | BindingFlags.Static);
Console.WriteLine("The Field info names of the Attributes for the constructor are:");
for (int i = 0; i < myFieldInfo1.Length; i++)
{
int myFieldValue = (Int32)myFieldInfo1[i].GetValue(null);
if ((myFieldValue & myAttribValue) == myFieldValue)
{
Console.WriteLine(" " + myFieldInfo1[i].Name);
}
}
Type myType2 = myConstructor.DeclaringType;
Console.WriteLine("The declaring type is : "+myType2.ToString());
Dim myMethodBuilder As MethodBuilder = Nothing
Dim myCurrentDomain As AppDomain = AppDomain.CurrentDomain
' Create assembly in current CurrentDomain
Dim myAssemblyName As New AssemblyName()
myAssemblyName.Name = "TempAssembly"
' Create a dynamic assembly
myAssemblyBuilder = _
myCurrentDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.RunAndSave)
' Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule")
Dim myFieldInfo As FieldInfo = _
myModuleBuilder.DefineUninitializedData("myField", 2, FieldAttributes.Public)
' Create a type in the module
Dim myTypeBuilder As TypeBuilder = _
myModuleBuilder.DefineType("TempClass", TypeAttributes.Public)
Dim myGreetingField As FieldBuilder = _
myTypeBuilder.DefineField("Greeting", GetType(String), FieldAttributes.Public)
Dim myConstructorArgs As Type() = {GetType(String)}
' Define a constructor of the dynamic class.
Dim myConstructor As ConstructorBuilder = _
myTypeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, _
myConstructorArgs)
Dim myPset As New PermissionSet(PermissionState.Unrestricted)
' Add declarative security to the constructor.
Console.WriteLine("Adding declarative security to the constructor.....")
Console.WriteLine("The Security action to be taken is ""DENY"" and" + _
" Permission set is ""UNRESTRICTED"".")
myConstructor.AddDeclarativeSecurity(SecurityAction.Deny, myPset)
Dim myMethodAttributes As MethodAttributes = myConstructor.Attributes
Dim myAttributeType As Type = GetType(MethodAttributes)
Dim myAttribValue As Integer = CInt(myMethodAttributes)
If Not myAttributeType.IsEnum Then
Console.WriteLine("This is not an Enum")
End If
Dim myFieldInfo1 As FieldInfo() = myAttributeType.GetFields(BindingFlags.Public Or _
BindingFlags.Static)
Console.WriteLine("The Field info names of the Attributes for the constructor are:")
Dim i As Integer
For i = 0 To myFieldInfo1.Length - 1
Dim myFieldValue As Integer = CType(myFieldInfo1(i).GetValue(Nothing), Int32)
If(myFieldValue And myAttribValue) = myFieldValue Then
Console.WriteLine(" " + myFieldInfo1(i).Name)
End If
Next i
Dim myType2 As Type = myConstructor.DeclaringType
Console.WriteLine("The declaring type is : " + myType2.ToString())