Class UpDBrowse:
~~~~~~~~~~~~~~~~
Its the same as the class Browse, but can exist as only one active task.
The atempt to background switching causes finishing of the task.


Common use:
~~~~~~~~~~~
LOCAL OBJECT Db OF UpDBrowse                //object creation
NET USE Personal                            //database is opened
Db:Init()                                   //object is initialised
Db:AddBlock(,"Meno",,FieldBlock("Name"))    //ads field for editation
Db:AddBlock(,"Plat",,FieldBlock("Salary"))  //ads field for editation

Db:Process()                                //editation
Db:Done()                                   //task finishing

Source code is in C_UpDBro.prg