"*no spam*" <i.s.director@gmail.com> wrote in message
news:10d883d.0410280257.2686b1df@posting.google.com...
> I'm experimenting with a provider to extend WebControl TextBox
> validation. Everything shows up ok in the designer. However, if you
> close and reopen the aspx file, the values don't seem to persist. Any
> ideas what could cause this? Here's a snippet of the definition code.
> I can provide more code if it would help...
>
> <Serializable(), _
> ProvideProperty("RequiredField", GetType(WebControl)), _
> ProvideProperty("ErrorColor", GetType(WebControl)), _
> ProvideProperty("RegularExpression", GetType(WebControl))> _
> Public Class TextBoxValidator
> Inherits System.ComponentModel.Component
> Implements IExtenderProvider
>
> #Region " Component Designer generated code "
>
> Public Sub New(ByVal Container As
> System.ComponentModel.IContainer)
> MyClass.New()
>
> 'Required for Windows.Forms Class Composition Designer support
> Container.Add(Me)
> End Sub
>
> Public Sub New()
> MyBase.New()
>
> 'This call is required by the Component Designer.
> InitializeComponent()
>
> 'Add any initialization after the InitializeComponent() call
>
> End Sub

<dotnet_vb_newbie@programmer.net> wrote in message
news:1099056787.466784.218490@c13g2000cwb.googlegroups.com...
> The values were stored in a hashtable. I've seen a few google posts
> saying there was a problem/bug serializing hashtables. Do you know if
> the bug has been fixed? If not, can anybody point to a vb workaround?
>
> Here's the section of the code which stores the data into the
> hashtable. I'm assuming that I don't need to do anything special in
> the code to maintain state as long as the controls have EnableViewState
> set to True.
> ---------------------------------------------------------------------------------------
>
> Private htTextProps As New Hashtable
>
> Private Function addPropertyValue(ByVal ctrl As WebControl) As
> TextExtendedProperties
> '-- If the TextExtendedProperties class for the textbox in
> question
> '-- is in the hashtable, return it to the caller.
> If htTextProps.Contains(ctrl) Then
> Return CType(htTextProps(ctrl), TextExtendedProperties)
> Else
>
> '-- If the TextExtendedProperties class is not in the
> '-- hashtable for this control then add it
>
> Dim tbProperties As New TextExtendedProperties
> htTextProps.Add(ctrl, tbProperties)
>
> '-- We register a handler (i.e., listener) to trap the
> '-- validating event of each textbox we are validating
> Dim tbCaller As TextBox = CType(ctrl, TextBox)
> AddHandler tbCaller.TextChanged, AddressOf
> tbValidateHandler
>
> '-- Return the TextExtendedPRoperties class to the caller
> '-- so the relevant property can be set.
> Return tbProperties
> End If
> End Function
>