>>What would be the.net equivalent of the vfp textbox.programmaticchange event. Specifically I would like to apply a format on the .text at "loading" time, i.e. when bindingsource changes the underlying value of a bound control (textbox).
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>What UI... in Silverlight and WPF you can use converters to do it...

I'd forgotten how much I love those little IValueConverter guys until I was reminded of having used the Binding.Format alternative :-}