GetCustomAttributes taking a ParameterInfo as a parameter. : ParameterInfo « Reflection « VB.Net Tutorial

Home
VB.Net Tutorial
1.Language Basics
2.Data Type
3.Operator
4.Statements
5.Date Time
6.Class Module
7.Development
8.Collections
9.Generics
10.Attributes
11.Event
12.LINQ
13.Stream File
14.GUI
15.GUI Applications
16.Windows Presentation Foundation
17.2D Graphics
18.I18N Internationlization
19.Reflection
20.Regular Expressions
21.Security
22.Socket Network
23.Thread
24.Windows
25.XML
26.Database ADO.net
27.Design Patterns
VB.Net
VB.Net by API
VB.Net Tutorial » Reflection » ParameterInfo 
19.3.1.GetCustomAttributes taking a ParameterInfo as a parameter.
Imports System
Imports System.Reflection
Imports System.ComponentModel


    Public Class AClass
        Public Sub ParamArrayAndDesc(<Description("This argument is a ParamArray")> _
            ByVal ParamArray args() As Integer)
        End Sub
    End Class

Module DemoModule

    Sub Main()
        Dim clsType As Type = GetType(AClass)
        Dim mInfo As MethodInfo = clsType.GetMethod("ParamArrayAndDesc")
        Dim pInfo() As ParameterInfo = mInfo.GetParameters()
        Dim attr As Attribute

        For Each attr In Attribute.GetCustomAttributes(pInfo(0))

            If TypeOf attr Is ParamArrayAttribute Then

                Dim paAttr As ParamArrayAttribute = CType(attr, ParamArrayAttribute)
                Console.WriteLine("Parameter {0} has the ParamArray attribute.", pInfo(0).Name)
            ElseIf TypeOf attr Is DescriptionAttribute Then
                Dim descAttr As DescriptionAttribute = CType(attr, DescriptionAttribute)
                Console.WriteLine("Parameter {0} has a description attribute. The description is:", pInfo(0).Name)
                Console.WriteLine(descAttr.Description)
            End If
        Next
    End Sub
End Module
19.3.ParameterInfo
19.3.1.GetCustomAttributes taking a ParameterInfo as a parameter.
19.3.2.Use IsDefined, taking a ParameterInfo as a parameter.
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.