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I created a view with Search API.Could you please help how to validate exposed filter(Textbox) with in a view.

I tried using contextual filter it never worked.

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  • what do you mean by validate? what do you want to check? – Pax Sep 17 '13 at 19:06
  • I want to validate if exposed filters has only letters and numbers. – user21012 Sep 17 '13 at 20:34
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I would alter the exposed form and add a validation handler.

If I remember correctly, the form ID is views_exposed_form. Just do a check on the view object (which I think is in the $form_state variable) to only add the handler to a certain view/view display.

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