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Type.GetMethods Method (BindingFlags)

When overridden in a derived class, searches for the methods defined for the current Type, using the specified binding constraints.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

'Declaration
Public MustOverride Function GetMethods ( _
	bindingAttr As BindingFlags _
) As MethodInfo()
'Usage
Dim instance As Type
Dim bindingAttr As BindingFlags
Dim returnValue As MethodInfo()

returnValue = instance.GetMethods(bindingAttr)
public abstract MethodInfo[] GetMethods (
	BindingFlags bindingAttr
)
public abstract function GetMethods (
	bindingAttr : BindingFlags
) : MethodInfo[]

Parameters

bindingAttr

A bitmask comprised of one or more BindingFlags that specify how the search is conducted.

-or-

Zero, to return a null reference (Nothing in Visual Basic).

Return Value

An array of MethodInfo objects representing all methods defined for the current Type that match the specified binding constraints. -or- An empty array of type MethodInfo, if no methods are defined for the current Type, or if none of the defined methods match the binding constraints.

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 non-public methods (that is, private and protected members) 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.DeclaredOnly to search only the methods declared on the Type, not methods that were simply inherited.

See System.Reflection.BindingFlags for more information.

If the requested type is non-public and the caller does not have ReflectionPermission to reflect non-public objects outside the current assembly, this method returns a null reference (Nothing in Visual Basic).

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 objects 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.

The following example creates a class with two public methods and one protected method, creates a Type object corresponding to MyTypeClass, gets all public and non-public methods, and displays their names.


Imports System
Imports System.Reflection
Imports System.Reflection.Emit
Imports Microsoft.VisualBasic

' Create a class having two public methods and one protected method.
Public Class MyTypeClass
    Public Sub MyMethods()
    End Sub 'MyMethods
    Public Function MyMethods1() As Integer
        Return 3
    End Function 'MyMethods1
    Protected Function MyMethods2() As [String]
        Return "hello"
    End Function 'MyMethods2
End Class 'MyTypeClass
Public Class TypeMain
    Public Shared Sub Main()

        Dim myType As Type = GetType(MyTypeClass)
        ' Get the public methods.
        Dim myArrayMethodInfo As MethodInfo() = myType.GetMethods((BindingFlags.Public Or BindingFlags.Instance Or BindingFlags.DeclaredOnly))
        Console.WriteLine((ControlChars.Cr + "The number of public methods is " & myArrayMethodInfo.Length.ToString() & "."))
        ' Display all the public methods.
        DisplayMethodInfo(myArrayMethodInfo)
        ' Get the nonpublic methods.
        Dim myArrayMethodInfo1 As MethodInfo() = myType.GetMethods((BindingFlags.NonPublic Or BindingFlags.Instance Or BindingFlags.DeclaredOnly))
        Console.WriteLine((ControlChars.Cr + "The number of protected methods is " & myArrayMethodInfo1.Length.ToString() & "."))
        ' Display all the nonpublic methods.
        DisplayMethodInfo(myArrayMethodInfo1)
    End Sub 'Main

    Public Shared Sub DisplayMethodInfo(ByVal myArrayMethodInfo() As MethodInfo)
        ' Display information for all methods.
        Dim i As Integer
        For i = 0 To myArrayMethodInfo.Length - 1
            Dim myMethodInfo As MethodInfo = CType(myArrayMethodInfo(i), MethodInfo)
            Console.WriteLine((ControlChars.Cr + "The name of the method is " & myMethodInfo.Name & "."))
        Next i
    End Sub 'DisplayMethodInfo
End Class 'TypeMain	


import System.*;
import System.Reflection.*;
import System.Reflection.Emit.*;

// Create a class having two public methods and one protected method.
public class MyTypeClass
{
    public void MyMethods()
    {
    } //MyMethods

    public int MyMethods1()
    {
        return 3;
    } //MyMethods1

    protected String MyMethods2()
    {
        return "hello";
    } //MyMethods2
} //MyTypeClass

public class TypeMain
{
    public static void main(String[] args)
    {
        Type myType = MyTypeClass.class.ToType();
        // Get the public methods.
        MethodInfo myArrayMethodInfo[] = myType.GetMethods(BindingFlags.Public
            | BindingFlags.Instance | BindingFlags.DeclaredOnly);
        Console.WriteLine("\nThe number of public methods is {0}.",
            (Int32)(myArrayMethodInfo.length));
        // Display all the methods.
        DisplayMethodInfo(myArrayMethodInfo);
        // Get the nonpublic methods.
        MethodInfo myArrayMethodInfo1[] =
            myType.GetMethods(BindingFlags.NonPublic | BindingFlags.Instance
            | BindingFlags.DeclaredOnly);
        Console.WriteLine("\nThe number of protected methods is {0}.",
            (Int32)(myArrayMethodInfo1.length));
        // Display information for all methods.
        DisplayMethodInfo(myArrayMethodInfo1);
    } //main

    public static void DisplayMethodInfo(MethodInfo myArrayMethodInfo[])
    {
        // Display information for all methods.
        for (int i = 0; i < myArrayMethodInfo.length; i++) {
            MethodInfo myMethodInfo = (MethodInfo)myArrayMethodInfo.get_Item(i);
            Console.WriteLine("\nThe name of the method is {0}.", 
                myMethodInfo.get_Name());
        }
    } //DisplayMethodInfo
} //TypeMain

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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