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Wednesday, October 27, 2010

On web forms

When designing web forms validation, there are a couple of things that you should remember:
  • Try to be simple. This includes the layout and generic design style.
  • Keep elements aligned.
  • Display validation results as soon as possible (but not too soon, for instance let the user finish the entry if it is not obvious that he is making a mistake).
  • Be consistent (naming) and coherent.
  • Avoid "wizards" style when possible.
  • Try to activate the submit button only when all required fields are filled in correctly.
  • Never redisplay the form emptied when there is an error after the submit. Always keep what the user entered.
Nice to have:
  • Auto-completion of the fields
  • Reset button
Resources : article from ZDNet, and A List Apart

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