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- '
- 'Class Description:
- '
- !short:ABrowse Class structure:
- Class ABrowse:
- ~~~~~~~~~~~~~~~
- It adopts the class Browse for editation of clipper arrray as a table.
-
-
- Common use:
- ~~~~~~~~~~~~~~~~~
- LOCAL OBJECT Ar OF ABrowse //-object is created
- AAdd(Ar:Arr,{"field1.1","field1.2","field1.3"}} //we create
- AAdd(Ar:Arr,{"field1.2","field2.2","field2.3"}} //a sample aray
- AAdd(Ar:Arr,{"field1.3","field3.2","field3.3"}} //for editation
- Ar:Init() //object is initialised
-
- As all classes derived from class Task, this class doesn't need methods
- Process() and Done() to be run. The initialisation adds new object of
- this class on the top of stack of classes and following is job for
- task-swapper (method Process() of class Task)
-
- Source text of class Abrowse is in the file C_ABrows.prg
-
- !seealso: c_browse.ngo:Browse c_task.ngo:Task c_box.ngo:Box c_upabro.ngo:UpABrowse c_dbrows.ngo:DBrowse c_color.ngo:Color ob_class.ngo:"Class hierarchy"
-
- !short:~~~~~~~~~~~~~~~~~~~~~~~~~
- !short:create class ABrowse from Browse
- !short: export:
- !short: var N //1
- ^BABrowse:N^N: public: numeric
- This instvar variable serves for array ABrowse:Arr in the same way as
- clipper function RecNo() for any database i.e. as pointer of current
- line in display table of this class. (Look at class Browse).
-
- !short: var Arr //{}
- ^BABrowse:Arr^N: public: array
- This is an array which represents table for view or editation.
-
- !short: method New=ABrowseNew //o:New() --> self
- ^BABrowse:New()^N: public: return self
- It fills the object with default initialising values.
- Following predcessor variables are modified:
-
- ^UABrowse:CanSwap^N: override: private: logical
- Default true value from inherited class Browse is overriden to
- new default value false. It restricts switching from Browse to Form.
-
- ^UABrowse:InsBlock^N: override: private: code_block
- Own method of new line input to table for array editation is defined.
- This is because adding items to an array differs from adding records to
- database.
-
- ^UABrowse:DelBlock^N: override: private: code_block
- For array editation defines own method of deleting of table line.
-
-
- !short: method Init=ABrowseInit //o:Init(Name,R,C,Rs,Cs,Clr,Shd) --> true/false
- ^BABrowse:Init(Name,R,C,Rs,Cs,Clr,Shadow)^N: public: return true
- Object is initialised, all parameters are not obligatory, when used are
- transmitted to predcessor method Box:GoodInit(...). For exact parameter
- description look at class ^Ubox^ method ^UGoodInit(...)^N.
-
- !short: endclass
-
-