Type::GetMethod Method (String^, BindingFlags, Binder^, array<Type^>^, array<ParameterModifier>^)
Searches for the specified method whose parameters match the specified argument types and modifiers, using the specified binding constraints.
Assembly: mscorlib (in mscorlib.dll)
public: virtual MethodInfo^ GetMethod( String^ name, BindingFlags bindingAttr, Binder^ binder, array<Type^>^ types, array<ParameterModifier>^ modifiers ) sealed
Parameters
- name
-
Type:
System::String^
The string containing the name of the method to get.
- bindingAttr
-
Type:
System.Reflection::BindingFlags
A bitmask comprised of one or more BindingFlags that specify how the search is conducted.
-or-
Zero, to return null.
- binder
-
Type:
System.Reflection::Binder^
An object that defines a set of properties and enables binding, which can involve selection of an overloaded method, coercion of argument types, and invocation of a member through reflection.
-or-
A null reference (Nothing in Visual Basic), to use the DefaultBinder.
- types
-
Type:
array<System::Type^>^
An array of Type objects representing the number, order, and type of the parameters for the method to get.
-or-
An empty array of Type objects (as provided by the EmptyTypes field) to get a method that takes no parameters.
- modifiers
-
Type:
array<System.Reflection::ParameterModifier>^
An array of ParameterModifier objects representing the attributes associated with the corresponding element in the types array. To be only used when calling through COM interop, and only parameters that are passed by reference are handled. The default binder does not process this parameter.
Return Value
Type: System.Reflection::MethodInfo^An object representing the method that matches the specified requirements, if found; otherwise, null.
| Exception | Condition |
|---|---|
| AmbiguousMatchException | More than one method is found with the specified name and matching the specified binding constraints. |
| ArgumentNullException | name is null. -or- types is null. -or- One of the elements in types is null. |
| ArgumentException | types is multidimensional. -or- modifiers is multidimensional. |
Although the default binder does not process ParameterModifier (the modifiers parameter), you can use the abstract System.Reflection::Binder class to write a custom binder that does process modifiers. ParameterModifier is only used when calling through COM interop, and only parameters that are passed by reference are handled.
The following BindingFlags filter flags can be used to define which methods to include in the search:
You must specify either BindingFlags.Instance or BindingFlags.Static in order to get a return.
Specify BindingFlags.Public to include public methods in the search.
Specify BindingFlags.NonPublic to include nonpublic methods (that is, private, internal, and protected methods) in the search.
Specify BindingFlags.FlattenHierarchy to include public and protected static members up the hierarchy; private static members in inherited classes are not included.
The following BindingFlags modifier flags can be used to change how the search works:
BindingFlags.IgnoreCase to ignore the case of name.
BindingFlags.DeclaredOnly to search only the methods declared on the Type, not methods that were simply inherited.
See System.Reflection::BindingFlags for more information.
 Note |
|---|
You cannot omit parameters when looking up constructors and methods. You can only omit parameters when invoking. |
If the current T:System.Type represents a constructed generic type, this method returns the MethodInfo with the type parameters replaced by the appropriate type arguments.
If the current Type represents a type parameter in the definition of a generic type or generic method, this method searches the methods of the class constraint, or the methods of Object if there is no class constraint.
| Note |
|---|
For generic methods, do not include the type arguments in name. For example, the C# code GetMember("MyMethod<int>") searches for a member with the text name "MyMethod<int>", rather than for a method named MyMethod that has one generic argument of type int. |
The following example finds specific overloads of MethodA, specifying binding constraints and a variety of argument types.
| Note |
|---|
The Visual C# 2005 example requires the /unsafe compiler option. |
using namespace System; using namespace System::Reflection; public ref class Program { public: // Methods to get: void MethodA(int i, int j) { } void MethodA(array<int>^ iarry) { } void MethodA(double *ip) { } // Method that takes a managed reference parameter. void MethodA(int% r) {} }; int main() { MethodInfo^ mInfo; // Get MethodA(int i, int j) mInfo = Program::typeid->GetMethod("MethodA", static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Instance), nullptr, gcnew array<Type^> {int::typeid, int::typeid}, nullptr); Console::WriteLine("Found method: {0}", mInfo ); // Get MethodA(array<int>^ iarry) mInfo = Program::typeid->GetMethod("MethodA", static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Instance), nullptr, gcnew array<Type^> {int::typeid->MakeArrayType()}, nullptr); Console::WriteLine("Found method: {0}", mInfo ); // Get MethodA(double *ip) mInfo = Program::typeid->GetMethod("MethodA", static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Instance), nullptr, gcnew array<Type^> {double::typeid->MakePointerType()}, nullptr); Console::WriteLine("Found method: {0}", mInfo ); // Get MethodA(int% r) mInfo = Program::typeid->GetMethod("MethodA", static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Instance), nullptr, gcnew array<Type^> {int::typeid->MakeByRefType()}, nullptr); Console::WriteLine("Found method: {0}", mInfo ); }
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0