8 calls to _form_set_class() in Drupal 7

theme_checkbox in includes/form.inc

Returns HTML for a checkbox form element.

theme_fieldset in includes/form.inc

Returns HTML for a fieldset form element and its children.

theme_file in includes/form.inc

Returns HTML for a file upload form element.

theme_password in includes/form.inc

Returns HTML for a password form element.

theme_radio in includes/form.inc

Returns HTML for a radio button form element.

theme_select in includes/form.inc

Returns HTML for a select form element.

theme_textarea in includes/form.inc

Returns HTML for a textarea form element.

theme_textfield in includes/form.inc

Returns HTML for a textfield form element.