html . How to Get Multiple Select Box Option Value on Multiple Select Using jQuery. JavaScript – How to recover the value of a selected option in a dropdown list. Example. 1. Gets the value of the selected item in the HtmlSelect control or sets the SelectedIndex property of the control to the index of the first item in the list with the specified value. The form Attribute HTML5 element whose multiple attribute is not set, only one single . . The HTML with three element can also be used for grouping those