Hi,
This example used to update record in crm 3.0 and crm 4.0 based SDK
//Create crm service
CrmService pService = new CrmService(); // optional to set url
// define entity + fields. mandatory field is key
incident oInc = new incident();
oInc.incidentid = new Key();
oInc.incidentid.Value = new Guid("guid");
oInc.title="my title"
pService.Update(oInc);
update Can get specific entity for instance contact, incident or dynamic entity.
all type of BusinessEntity.
thanks,
Rami Heleg