MethodBuilder.GetParameters Method

Reference

Definition

Namespace:: System.Reflection.Emit

Assemblies:: netstandard.dll, System.Reflection.Emit.dll

Assembly:: System.Reflection.Emit.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Package:: System.Reflection.Emit v4.7.0

Source:: MethodBuilder.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Returns the parameters of this method.

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()

Returns

ParameterInfo[]

An array of ParameterInfo objects that represent the parameters of the method.

Exceptions

NotSupportedException

This method is not currently supported. Retrieve the method using GetMethod(String, BindingFlags, Binder, CallingConventions, Type[], ParameterModifier[]) and call GetParameters on the returned MethodInfo.

Examples

The code sample below illustrates the use of GetParameters to discover information on the parameters passed to a dynamically-generated method.

TypeBuilder^ myType1 = myModBuilder->DefineType( "MyMathFunctions", TypeAttributes::Public );
array<Type^>^temp0 = {Type::GetType( "System.Int32&" ),int::typeid};
MethodBuilder^ myMthdBuilder = myType1->DefineMethod( "AddToRefValue", MethodAttributes::Public, void::typeid, temp0 );
ParameterBuilder^ myParam1 = myMthdBuilder->DefineParameter( 1, ParameterAttributes::Out, "thePool" );
ParameterBuilder^ myParam2 = myMthdBuilder->DefineParameter( 2, ParameterAttributes::In, "addMeToPool" );

// Create body via ILGenerator here, and complete the type.
array<ParameterInfo^>^myParams = myMthdBuilder->GetParameters();
Console::WriteLine( "Method: {0}", myMthdBuilder->Name );

for each (ParameterInfo^ myParam in myParams)
{
   Console::WriteLine("------- Parameter: {0} {1} at pos {2}, with attribute {3}", 
      myParam->ParameterType, myParam->Name, myParam->Position,
            myParam->Attributes.ToString());
}


TypeBuilder myType1 = myModBuilder.DefineType("MyMathFunctions",
                TypeAttributes.Public);

MethodBuilder myMthdBuilder = myType1.DefineMethod("AddToRefValue",
                MethodAttributes.Public,
                typeof(void),
                new Type[] { Type.GetType("System.Int32&"),
                         typeof(int) });
ParameterBuilder myParam1 = myMthdBuilder.DefineParameter(1,
                ParameterAttributes.Out,
                "thePool");
ParameterBuilder myParam2 = myMthdBuilder.DefineParameter(2,
                ParameterAttributes.In,
                "addMeToPool");

// Create body via ILGenerator here, and complete the type.

ParameterInfo[] myParams = myMthdBuilder.GetParameters();

Console.WriteLine("Method: {0}", myMthdBuilder.Name);

foreach (ParameterInfo myParam in myParams)
    {
   Console.WriteLine("------- Parameter: {0} {1} at pos {2}, with attribute {3}",
             myParam.ParameterType, myParam.Name, myParam.Position,
             myParam.Attributes.ToString());
    }

Dim myType1 As TypeBuilder = myModBuilder.DefineType("MyMathFunctions", _
                      TypeAttributes.Public)

Dim myMthdBuilder As MethodBuilder = myType1.DefineMethod("AddToRefValue", _
          MethodAttributes.Public, Nothing, _
          New Type() {Type.GetType("System.Int32&"), GetType(Integer)})

Dim myParam1 As ParameterBuilder = myMthdBuilder.DefineParameter(1, _
                  ParameterAttributes.Out, "thePool")

Dim myParam2 As ParameterBuilder = myMthdBuilder.DefineParameter(2, _
                  ParameterAttributes.In, "addMeToPool")

' Create body via ILGenerator here, and complete the type.

Dim myParams As ParameterInfo() = myMthdBuilder.GetParameters()

Console.WriteLine("Method: {0}", myMthdBuilder.Name)

Dim myParam As ParameterInfo
For Each myParam In  myParams
   Console.WriteLine("------- Parameter: {0} {1} at pos {2}, with attribute {3}", _
          myParam.ParameterType, myParam.Name, myParam.Position, _
          myParam.Attributes.ToString())
Next myParam

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided), 2.1

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