VDKXControl Class Reference

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

#include <vdkxctrl.h>

Inheritance diagram for VDKXControl:

List of all members.

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

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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.

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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 VDKXCheckButton, VDKXEntry, 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.

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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

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