Create a class "Datamapper" as custom, that has on property and two methods:
DataMapper.Aliasname
dataMapper.Getvalue()
datamapper.setvalue()

The getValue() method is as follows:

LPARAMETERS tcFieldname
RETURN EVALUATE(THIS.Aliasname + "." + tcFieldname)

and the setvalue() method is as follows:

LPARAMETERS tcFieldname, tvValue
REPLACE (tcfieldname) WITH tvvalue IN (THIS.AliasName)

In your form, do the following code:

MainapplicationObject.NEWOBJECT("Datamapper","Datamapper","LibraryWhereDatamapperexist")
MainapplicationObject.Datamapper.Aliasname = ??? *you should know the aliasname here.
MyValue = MainapplicationObject.Datamapper.GetValue("MyField")

What do you think?

>Hi everybody,
>
>In a form I call a method of the application object, that opens a cursor in a default DS. Is there a simple way of getting to this cursor's field without switching DS in code using SET DATASESSION command?
>
>Thanks in advance.