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Extend vb.Net Class to have New Property

How do you add an new property to an existing .Net Class. What I want ot do exactlyis add a property to the dateTime class.

The goal would be like this.

Dim intWeek as integer = DateTime.Now.WeekOfMonth

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Here is the code I use to get the week of the month.

 Dim DayNo As Integer = 0
                Dim DateNo As Integer = 0
                Dim StartingDay As Integer = 0
                Dim PayPerEndDate As Date = DateTime.Now
                Dim week As Integer = 1
                StartingDay = PayPerEndDate.AddDays(-(PayPerEndDate.Day - 1)).DayOfWeek
                DayNo = PayPerEndDate.DayOfWeek
                DateNo = PayPerEndDate.Day
                week = Fix(DateNo / 7)
                If DateNo Mod 7 > 0 Then
                    week += 1
                End If
                If StartingDay > DayNo Then
                    week += 1
                End If

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kaufmed

How do you add an new property to an existing .Net Class.

You can't...at least not without subclassing it--if it's not sealed. It appears you want to add a member to the Now property, which is a DateTime struct. Structs cannot be inherited. You could add and extension method that would *appear* to be a member method, but in reality it's just a static (Shared in VB) method.

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kaufmed

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pamsauto

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Very nice!