val = oData.Item(id).Value
oData.Item(id).Value = val
Set obj = oData.Item(id)
|id||(Variant) Identification of the variable either by its name (String data type, case sensitive text, for example "a1") or by index (zero-based index).|
The Var object includes information about the variable (value, name, index, etc.).
The Item property (like Var object) is read only, it means that the object cannot be changed but for example it is possible to write into the Value of the Var object.
The reference to Var object can also be done directly by extending the path of the Pm method using the #vars identifier. This identifier can be used in methods working with application object tree (e.g. for the Pm method), or for the PP binding in the application and in panels. For example the method Pm("/data/#vars/Temperature) returns the "Temperature" variable (Var) in the "data" object(PmData).
References to Data extensions objects in the Var variable can also be done directly by extending the path of the Pm method using the #ext identifier. This can be used in Pm method or in PP binding in application and in panels. For example the pMe.Pm method ("/data/#vars/Temperature/#ext/al") returns the data extension with al identifier (ExtAlarmAnalog) in the "Temperature" variable (Var) in the "data" object (PmData).