ConstructorBuilder.GetParameters 方法

定义

命名空间:

System.Reflection.Emit

程序集:

System.Reflection.Emit.dll

返回此构造函数的参数。

public:
 override cli::array <System::Reflection::ParameterInfo ^> ^ GetParameters();

public override System.Reflection.ParameterInfo[] GetParameters ();

override this.GetParameters : unit -> System.Reflection.ParameterInfo[]

Public Overrides Function GetParameters () As ParameterInfo()

返回

ParameterInfo[]

一个数组，它表示此构造函数的参数。

例外

InvalidOperationException

在 .NET framework 1.0 和 1.1 版中，尚未在此构造函数的类型上调用 CreateType()。

NotSupportedException

在 .NET Framework 2.0 版中，尚未在此构造函数的类型上调用 CreateType()。

示例

代码示例演示如何使用 GetParameters。

// Define a constructor of the dynamic class.
ConstructorBuilder^ myConstructorBuilder = myTypeBuilder->DefineConstructor(
   MethodAttributes::Public, CallingConventions::Standard, myConstructorArgs );
// Get a reference to the module that contains this constructor.
Module^ myModule = myConstructorBuilder->GetModule();
Console::WriteLine( "Module Name : {0}", myModule->Name );
// Get the 'MethodToken' that represents the token for this constructor.
MethodToken myMethodToken = myConstructorBuilder->GetToken();
Console::WriteLine( "Constructor Token is : {0}", myMethodToken.Token );
// Get the method implementation flags for this constructor.
MethodImplAttributes myMethodImplAttributes = myConstructorBuilder->GetMethodImplementationFlags();
Console::WriteLine( "MethodImplAttributes : {0}", myMethodImplAttributes );
// Generate IL for the method, call its base class constructor and store the arguments
// in the private field.
ILGenerator^ myILGenerator3 = myConstructorBuilder->GetILGenerator();
myILGenerator3->Emit( OpCodes::Ldarg_0 );
ConstructorInfo^ myConstructorInfo = Object::typeid->GetConstructor( gcnew array<Type^>(0) );
myILGenerator3->Emit( OpCodes::Call, myConstructorInfo );
myILGenerator3->Emit( OpCodes::Ldarg_0 );
myILGenerator3->Emit( OpCodes::Ldarg_1 );
myILGenerator3->Emit( OpCodes::Stfld, myGreetingField );
myILGenerator3->Emit( OpCodes::Ret );
// Add a method to the type.
myMethodBuilder = myTypeBuilder->DefineMethod(
   "HelloWorld", MethodAttributes::Public, nullptr, nullptr );
// Generate IL for the method.
ILGenerator^ myILGenerator2 = myMethodBuilder->GetILGenerator();
myILGenerator2->EmitWriteLine( "Hello World from global" );
myILGenerator2->Emit( OpCodes::Ret );
myModuleBuilder->CreateGlobalFunctions();
myType1 = myTypeBuilder->CreateType();

// Get the parameters of this constructor.
array<ParameterInfo^>^myParameterInfo = myConstructorBuilder->GetParameters();
for ( int i = 0; i < myParameterInfo->Length; i++ )
{
   Console::WriteLine( "Declaration type : {0}", myParameterInfo[ i ]->Member->DeclaringType );
}

// Define a constructor of the dynamic class.
ConstructorBuilder myConstructorBuilder = myTypeBuilder.DefineConstructor(
   MethodAttributes.Public, CallingConventions.Standard, myConstructorArgs);
// Get a reference to the module that contains this constructor.
Module myModule = myConstructorBuilder.GetModule();
Console.WriteLine("Module Name : " + myModule.Name);
// Get the 'MethodToken' that represents the token for this constructor.
MethodToken myMethodToken = myConstructorBuilder.GetToken();
Console.WriteLine("Constructor Token is : " + myMethodToken.Token);
// Get the method implementation flags for this constructor.
MethodImplAttributes myMethodImplAttributes = myConstructorBuilder.GetMethodImplementationFlags();
Console.WriteLine("MethodImplAttributes : "  + myMethodImplAttributes);
// Generate IL for the method, call its base class constructor and store the arguments
// in the private field.
ILGenerator myILGenerator3 = myConstructorBuilder.GetILGenerator();
myILGenerator3.Emit(OpCodes.Ldarg_0);
ConstructorInfo myConstructorInfo = typeof(Object).GetConstructor(new Type[0]);
myILGenerator3.Emit(OpCodes.Call, myConstructorInfo);
myILGenerator3.Emit(OpCodes.Ldarg_0);
myILGenerator3.Emit(OpCodes.Ldarg_1);
myILGenerator3.Emit(OpCodes.Stfld, myGreetingField);
myILGenerator3.Emit(OpCodes.Ret);
// Add a method to the type.
myMethodBuilder = myTypeBuilder.DefineMethod
   ("HelloWorld",MethodAttributes.Public,null,null);
// Generate IL for the method.
ILGenerator myILGenerator2 = myMethodBuilder.GetILGenerator();
myILGenerator2.EmitWriteLine("Hello World from global");
myILGenerator2.Emit(OpCodes.Ret);
myModuleBuilder.CreateGlobalFunctions();
myType1 = myTypeBuilder.CreateType();

// Get the parameters of this constructor.
ParameterInfo[] myParameterInfo = myConstructorBuilder.GetParameters();
for(int i =0 ; i < myParameterInfo.Length; i++)
{
   Console.WriteLine("Declaration type : " + myParameterInfo[i].Member.DeclaringType);
}

' Define a constructor of the dynamic class.
Dim myConstructorBuilder As ConstructorBuilder = _ 
    myTypeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, _ 
                                    myConstructorArgs)
' Get a reference to the module that contains this constructor.
Dim myModule As [Module] = myConstructorBuilder.GetModule()
Console.WriteLine("Module Name : " + myModule.Name)
' Get the 'MethodToken' that represents the token for this constructor.
Dim myMethodToken As MethodToken = myConstructorBuilder.GetToken()
Console.WriteLine("Constructor Token is : " + myMethodToken.Token.ToString())
' Get the method implementation flags for this constructor.
Dim myMethodImplAttributes As MethodImplAttributes = _
    myConstructorBuilder.GetMethodImplementationFlags()
Console.WriteLine("MethodImplAttributes : " + myMethodImplAttributes.ToString())
' Generate IL for the method, call its base class constructor and store the arguments
' in the private field.
Dim myILGenerator3 As ILGenerator = myConstructorBuilder.GetILGenerator()
myILGenerator3.Emit(OpCodes.Ldarg_0)
Dim myConstructorInfo As ConstructorInfo = GetType(Object).GetConstructor(New Type() {})
myILGenerator3.Emit(OpCodes.Call, myConstructorInfo)
myILGenerator3.Emit(OpCodes.Ldarg_0)
myILGenerator3.Emit(OpCodes.Ldarg_1)
myILGenerator3.Emit(OpCodes.Stfld, myGreetingField)
myILGenerator3.Emit(OpCodes.Ret)
' Add a method to the type. 
myMethodBuilder = _ 
     myTypeBuilder.DefineMethod("HelloWorld", MethodAttributes.Public, Nothing, Nothing)
' Generate IL for the method.
Dim myILGenerator2 As ILGenerator = myMethodBuilder.GetILGenerator()
myILGenerator2.EmitWriteLine("Hello World from global")
myILGenerator2.Emit(OpCodes.Ret)
myModuleBuilder.CreateGlobalFunctions()
myType1 = myTypeBuilder.CreateType()

' Get the parameters of this constructor.
Dim myParameterInfo As ParameterInfo() = myConstructorBuilder.GetParameters()
Dim i As Integer
For i = 0 To myParameterInfo.Length - 1
   Console.WriteLine _ 
           ("Declaration type : " + myParameterInfo(i).Member.DeclaringType.ToString())
Next i

注解

直到调用 方法后， TypeBuilder.CreateType 才支持此属性。 在 .NET Framework版本 1.0 和 1.1 中，InvalidOperationException引发 。 在 .NET Framework版本 2.0 中，NotSupportedException引发 。