How to retrieve the selected option field using info path VSTA code

Dear all,

in my info path form i have a option field with 3 option, by using code how can i get the selected option field

for example to get the textbox

string fieldValue = MainDataSource.CreateNavigator().SelectSingleNode(
"/my:myFields/my:field1", NamespaceManager).Value;

like this for to get the selected option for option field

Thanks & regards,

Jithendar