Exploiting the .NET Validation Frameworks: Listing 3.
The GetErrors method.
Public Function IsValidForCustomerID(value As String,
Notify As Boolean) As Boolean
Dim NameError As New List(Of String)
If _Errors.ContainsKey("CustomerID") Then
_Errors.Remove("CustomerID")
If Notify Then
RaiseEvent ErrorsChanged(Me,
New ComponentModel.DataErrorsChangedEventArgs("CustomerID"))
End If
End If
About the Author
Peter Vogel is a system architect and principal in PH&V Information Services. PH&V provides full-stack consulting from UX design through object modeling to database design. Peter tweets about his VSM columns with the hashtag #vogelarticles. His blog posts on user experience design can be found at http://blog.learningtree.com/tag/ui/.