How to get the value of a field in a DataSource?

[AkashMohapatra]

Hello,

I am using smartClient v10.0 for my project. I have a dataSource like below:

codeData: isc.DataSource.create({
ID: "codeData",
dataFormat: "json",
clientOnly: true,
canEdit: true,
allowEmptyValue: false,
showPrompt: false,
dataURL: "constituent/constCode",
fields: [{name: "id", type: "text"},{name: "code", type: "text"},{name: "flag", type: "text"}],
handleError: function(response, request) {
isc.warn("Error reading constituent codes.");
return false;
}
}
)

I want to use the value of the field 'flag' in a showIf condition. I will appreciate if anyone can say on how to get the value of a particular field in a field array of a declared dataSource.

Thanks
Akash

[AkashMohapatra]

I will appreciate any help on this. Thanks