How to add checkBox in Dialog and get value?

I want to add a CheckBox in my Dialog.

I used this code:

Dialog dialog;
DialogField dialogField;
NoYesId checkValue;
;
dialog = new Dialog("New dialog with checkBox");

dialogField = dialog.addFieldValue(identifierStr(NoYes) , checkValue);
checkValue= dialogField.value();
dialog.run();
info(strfmt("Value %1" , checkValue));

So, in Debug I see the value of the variable (checkValue) always NO .

On web-tutorial I saw this code:

dialog.addFieldValue(typeid(NoYes), NoYes::Yes, "tip");

But I have an error Method typeid not exist .

What is the way? Thanks all,

enjoy!