setAsString method
Implementation
@override
void setAsString(String aValue) {
final temp = aValue.toUpperCase();
if (temp.isEmpty) {
clear();
} else if (_displays[1][1].startsWith(temp)) {
setAsBoolean(true);
} else if (_displays[1][0].startsWith(temp)) {
setAsBoolean(false);
} else {
databaseErrorFmt(SNotABoolean, [aValue]);
}
}