Dropdown element

Sub Elements​

• Add - Press this to add in a new drop down option
• Value - The value that is stored in the database if the drop down option is selected
• Label - The label that appears next to the drop down option. Equally this label is shown in the table view rather than the recorded value (which is stored in the database table itself)
• Default - is the option selected as default
• Delete - Press this to delete the drop down option

Options​

• Multiple selections - if yes then uses can ctrl click to select multiple Options from the list
• Multiple selections height - if multiple selections turned on then this value represents how many Options are visible in the list before you have to start scrolling it
• Eval - evaluate the label as a PHP function.
• Default - The default value to populate the element with. If the eval option is selected then this should contain a PHP statement

Add Options​

• Allow user to add drop down option - Allow your form's users to add in additional Options to your form.
• Only add label - If no selected then the user has to enter both a value and a label for the checkbox option they are adding. If yes selected then only a label field is presented to the user the value of which is then used for the value and label.
• Save new additions - If yes selected then the newly submitted option is stored by the element, meaning subsequent users of the form will be able to select the same value.

Advanced​

• Separator - to be completed
• Eval Populate - Insert PHP code to build the Options. Should return an array of JHTML select Options. See sample below. Also on radio button element. Examples of use can be found there and below.
• Eval - PHP Code to create Options, should return an array of JHTML select.Options. Get data from other Elements via $this->getFormModel()->data['table___element'] resp. $this->getFormModel()->data['table___element_raw']
• Default - to be completed

Sample Eval Populate​

$Options[] = JHTML::_('select.option', '0', 'Please select' );

$db = JFactory::getDbo();

$db->setQuery("SELECT id, text FROM #__tablename");

$rows = $db -> loadObjectList();

foreach ($rows as $row) {

    $Options[] = JHTML::_('select.option', $row->id, $row->text);

}

return $Options;