getSelectedAsString method
get selected value in string
Implementation
String getSelectedAsString() {
if (_selected != null) {
StringBuffer string = StringBuffer();
_selected!.forEach((option) {
string.write(option.getValueAsString() + ',');
});
return string.toString().length == 0 ? ''
: string.toString().substring(0, string.toString().length - 1);
}
return '';
}