SelectInput(options: List<StringPair>? = null, value: String? = null, multiple: Boolean = false, ajaxOptions: AjaxOptions? = null, classes: Set<String> = setOf())
options - an optional list of options (label to value pairs) for the select control
multiple - allows multiple value selection (multiple values are comma delimited)
ajaxOptions - additional options for remote (AJAX) data source
classes - a set of CSS class names
Constructor