>I have a textbox which is bound to a field on an entity. I need to run some code whenever the entity's field changes. I've tried calling my code in the textbox's Text_Changed event, but referring to the entity's field at this point in time does not reflect the value entered in the textbox.
>
>At what point in time would the entity's field get updated with the value entered in the textbox?
>
>Or is there another way to trap/raise an event when the entity's filed changes?

Just adding to John's response:

When the entity property gets updated will depend on the UpdateSourceTrigger setting on the Textbox control. IIRC the default is 'LostFocus' - if you haven't specified otherwise then the entity won't be updated on TextChanged. You may want to set the trigger to 'PropertyChanged' ?