Custom Attributes

Hi everybody,
Can anybody explain me about Custom Attributes and how are they implemented?. I mean what is the significance of using separate class for Attributes?
Thanks in advance,
abhid

What do you mean by Custom Attributes? Like Serializeable?

Quote:

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Originally posted by Edneeis
What do you mean by Custom Attributes? Like Serializeable?

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no, I am referring to Attribute class in .Net
Actually I have a huge code where I have some classes with tags like

VB Code:

Imports System.Reflection
Public Class clsUserScreen
 
<clsMyProperty(prp_UserName:="ABC", prp_Age:="40")> Public Property prp_User1() As String 'I want to Know working of this part
...
End Property
...
End Class

and clsMyProperty class is defined like

VB Code:

<AttributeUsage(AttributeTargets.All, inherited:=True, AllowMultiple:=False)> Public Class clsMyProperty
    Inherits Attribute 'This class is member of System
 
#Region "Member Variables"
    Private strUserName As String
    Private strAge As String
#End Region
 
#Region "Class Propertis"
    Public Property prp_UserName() As String
        Get
            Return strUserName
        End Get
        Set(ByVal strValue As String)
            strUserName = strValue
        End Set
    End Property
    Public Property prp_Age() As String
        Get
            Return strAge
        End Get
        Set(ByVal strValue As String)
            strAge = strValue
        End Set
    End Property
#End Region
 
End Class

This is just a small example though. I have huge list of classes using custom attributes and I need to write some code based upon these classes. But first I want to understand this code fully although I will not be referring to these attributes in MY code.
I read in MSDN regarding Attribute class but I want to know what is exact significance of using custom attributes for a class property.