The problem is we have to move from framework 2 to 3.5 version
and some code start give me an error.
//framework 2 (works correct)
LayoutParts_SessionWork pWork =

thru my testing it seems that neither createChildControls nor onPreRender
will run if the control is invisible, but Render still runs. Am i correct
and why does render run if the others dont?
thanks for your input~!

I want to develop a Form Generator tool that consists of a toolbox and a
design screen where an enduser can select controls from a small set controls
(textbox, label,...) from the toolbox and drag/drop them from/on the design
surface. I suppose I need to develop Custom Controls ...

I am declaratively settting value of custom control in aspx page:
<ctrl:MaskedEditTextBox ID="mskClient_FullPhone"
PropertyID="Client_FullPhone" runat="server" ReadOnly="true"