WPF ValidationRule bug? Backspace is ignored. Is there a work around for this? -


my work mate having problem well, haven't had chance in way of investigation.

steps reproduce problem in textbox in datagrid validation rule attached.

  1. enter illegal content in such way 1 backspace should return legal content.
  2. hit space - text box still showing error when shouldn't be
  3. hit backspace again , error clears

has come across , know of work around?

thanks in advance!


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