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Type.GetMethod Method (String, Type[])

Searches for the specified public method whose parameters match the specified argument types.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public MethodInfo GetMethod(
	string name,
	Type[] types
)

Parameters

name
Type: System.String
The string containing the name of the public method to get.
types
Type: 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.

Return Value

Type: System.Reflection.MethodInfo
An object representing the public method whose parameters match the specified argument types, if found; otherwise, null.

Implements

_Type.GetMethod(String, Type[])
ExceptionCondition
AmbiguousMatchException

More than one method is found with the specified name and specified parameters.

ArgumentNullException

name is null.

-or-

types is null.

-or-

One of the elements in types is null.

ArgumentException

types is multidimensional.

The search for name is case-sensitive. The search includes public static and public instance methods.

NoteNote

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.

NoteNote

The name parameter cannot include type arguments. For example, the C# code GetMethod("MyGenericMethod<int>") searches for a method with the text name "MyGenericMethod<int>", rather than for a method named MyGenericMethod that has one generic argument of type int. Instead, use GetMethod("MyGenericMethod") with the appropriate parameter in the types array.

The following example finds specific overloads of MethodA, specifying a variety of argument types.

NoteNote

The Visual C# 2005 example requires the /unsafe compiler option.



using System;
using System.Reflection;

class Program
{
    // Methods to get:

    public void MethodA(int i, int j) { }

    public void MethodA(int[] i) { }

    public unsafe void MethodA(int* i) { }

    public void MethodA(ref int r) {}

    // Method that takes an out parameter:
    public void MethodA(int i, out int o) { o = 100;}


  static void Main(string[] args)
  {
    MethodInfo mInfo;

    // Get MethodA(int i, int i)
    mInfo = typeof(Program).GetMethod("MethodA",
        new Type[] { typeof(int), typeof(int) });
    Console.WriteLine("Found method: {0}", mInfo);

    // Get MethodA(int[] i)
    mInfo = typeof(Program).GetMethod("MethodA",
        new Type[] { typeof(int[]) });
    Console.WriteLine("Found method: {0}", mInfo);

    // Get MethodA(int* i)
    mInfo = typeof(Program).GetMethod("MethodA",
        new Type[] { typeof(int).MakePointerType() });
    Console.WriteLine("Found method: {0}", mInfo);

    // Get MethodA(ref int r)
    mInfo = typeof(Program).GetMethod("MethodA",
        new Type[] { typeof(int).MakeByRefType() });
    Console.WriteLine("Found method: {0}", mInfo);

    // Get MethodA(int i, out int o)
    mInfo = typeof(Program).GetMethod("MethodA",
        new Type[] { typeof(int), typeof(int).MakeByRefType() });
    Console.WriteLine("Found method: {0}", mInfo);

  }
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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