VDKXControl Class Reference

VDK data-aware widgets base class. More...

#include <vdkxctrl.h>

Inheritance diagram for VDKXControl:

Public Member Functions
	VDKXControl ()
	Constructor.
virtual	~VDKXControl ()
	Destructor.
virtual bool	AssignTableField (VDKXTable *table, char *fieldname)
virtual bool	AssignTableField (VDKXDatabase *xdb, char *tablename, char *fieldname)
virtual xbShort	Read ()
	Read form field to control.
virtual xbShort	Write ()
	Writes from control to field.

Protected Attributes
VDKXTable *	table
	table that owns field
VDKString	field_name
	field name
xbShort	field_id
	field number
xbShort	field_type

Detailed Description

VDK data-aware widgets base class.

This class provides common behaviours for VDKXControls that are interface widgets with a database field. VDKXControls provides to read/write their value to/from database fields. In order to make them operate correctly user must assign a field to the control using AssignTableField() method. All data-aware widget are subclasses of this class.

Member Function Documentation

bool VDKXControl::AssignTableField ( VDKXTable *  table, char *  fieldname  )

virtual

Assign a table field to the control

Parameters

table	table that owns the field
fieldname	field name as in table VDKXRecordTemplate descriptor structure (see it into xdb/dbf.h) Note: not all controls can hold all types, see subclasses for detailed informations.

Reimplemented in VDKXEntry, VDKXCheckButton, and VDKXMemo.

bool VDKXControl::AssignTableField ( VDKXDatabase *  xdb, char *  tablename, char *  fieldname  )

virtual

Assign a table field to the control

Parameters

xdb	the xdatabase
tablename	filename of the table that owns the field
fieldname	field name as in table VDKXRecordTemplate descriptor structure (see it into xdb/dbf.h) Note: not all controls can hold all types, see subclasses for detailed informations.

Reimplemented in VDKXCheckButton, VDKXEntry, and VDKXMemo.

Member Data Documentation

xbShort VDKXControl::field_type

protected

Field type. Can be:

• 'C' character
• 'D' date
• 'L' logical
• 'M' memo
• 'N' numeric
• 'F' float

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The documentation for this class was generated from the following files:

• vdkxctrl.h
• vdkxctrl.cc