hi and thanks for reply
im using jquery 1.8.2
im using contenttype tag here in the code :
var dataAdapter = new $.jqx.dataAdapter(source,{ contentType: 'application/json; charset=utf-8' });
should i use it anywhere else ?
and im using this code abbove the updateCustomer Function
[WebMethod][ScriptMethod(UseHttpGet = true)]
is it correct ?