Module.GetCustomAttributes Method (System.Reflection) (original) (raw)

Source:

Module.cs

Source:

Module.cs

Source:

Module.cs

Source:

Module.cs

Gets custom attributes of the specified type.

public:
 virtual cli::array <System::Object ^> ^ GetCustomAttributes(Type ^ attributeType, bool inherit);

public virtual object[] GetCustomAttributes(Type attributeType, bool inherit);

abstract member GetCustomAttributes : Type * bool -> obj[]
override this.GetCustomAttributes : Type * bool -> obj[]

Public Overridable Function GetCustomAttributes (attributeType As Type, inherit As Boolean) As Object()

Parameters

attributeType

Type

The type of attribute to get.

inherit

Boolean

This argument is ignored for objects of this type.

Returns

An array of type Object containing all custom attributes of the specified type.

Implements

Exceptions

attributeType is not a Type object supplied by the runtime. For example, attributeType is a TypeBuilder object.

Examples

The following example displays the module names of the specified type that match the specified search criteria.

using System;
using System.Reflection;
//Define a module-level attribute.
[module: ReflectionModule_Examples.MySimpleAttribute("module-level")]
namespace ReflectionModule_Examples
{
    class MyMainClass
    {
        static void Main()
        {
            Module[] moduleArray;
            moduleArray = typeof(MyMainClass).Assembly.GetModules(false);
            // In a simple project with only one module, the module at index
            // 0 will be the module containing these classes.
            Module myModule = moduleArray[0];
            object[] attributes;
            //Get only MySimpleAttribute attributes for this module.
            attributes = myModule.GetCustomAttributes(
                myModule.GetType("ReflectionModule_Examples.MySimpleAttribute", false, false),
                true);
            foreach(Object o in attributes)
            {
                Console.WriteLine("Found this attribute on myModule: {0}", o.ToString());
            }
        }
    }

    // Define a very simple custom attribute
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Module)]
    public class MySimpleAttribute : Attribute
    {
        private string name;

        public MySimpleAttribute(string newName)
        {
            name = newName;
        }
    }
}

Imports System.Reflection

' Define a module-level attribute.
<Module: ReflectionModule_Examples.MySimpleAttribute("module-level")> 
' This code assumes that the root namespace is set to empty("").
Namespace ReflectionModule_Examples
    Class MyMainClass
        Shared Sub Main()
            Dim moduleArray() As [Module]
            moduleArray = GetType(MyMainClass).Assembly.GetModules(False)
            ' In a simple project with only one module, the module at index
            ' 0 will be the module containing these classes.
            Dim myModule As [Module] = moduleArray(0)
            Dim attributes() As Object
            ' Get only MySimpleAttribute attributes for this module.
            attributes = myModule.GetCustomAttributes( _
                myModule.GetType("ReflectionModule_Examples.MySimpleAttribute", _
                False, False), True)
            Dim o As [Object]
            For Each o In attributes
                Console.WriteLine("Found this attribute on myModule: {0}", o.ToString())
            Next o
        End Sub
    End Class
    ' Define a very simple custom attribute.
    <AttributeUsage(AttributeTargets.Class Or AttributeTargets.Module)> _
     Public Class MySimpleAttribute
        Inherits Attribute
        Private name As String
        Public Sub New(ByVal newName As String)
            name = newName
        End Sub
    End Class
End Namespace 'ReflectionModule_Examples

Applies to