Validator classes

TValidator forms the base class for several ObjectWindows classes that encapsulate validation objects. More...

Classes
class	owl::TValidator
	A streamable class, TValidator defines an abstract data validation object. More...
class	owl::TXValidator
	A nested class, TXValidator describes an exception that results from an invalid validator object. More...
class	owl::TPXPictureValidator
	TPXPictureValidator objects compare user input with a picture of a data format to determine the validity of entered data. More...
class	owl::TFilterValidator
	A streamable class, TFilterValidator checks an input field as the user types into it. More...
class	owl::TRangeValidator
	Determines whether the data typed by a user falls within a designated range of integers. More...
class	owl::TLookupValidator
	A streamable class, TLookupValidator compares the string typed by a user with a list of acceptable values. More...
class	owl::TStringLookupValidator
	Derived from TLookupValidator, TStringLookupValidator is a streamable class. More...

Enumerations
enum	owl::TValidatorOptions { owl::voFill = 0x0001 , owl::voTransfer = 0x0002 , owl::voOnAppend = 0x0004 , owl::voReserved = 0x00F8 }
	Bit-register flags used with TValidator::SetOption and UnsetOption. More...
enum	owl::TPicResult { owl::prComplete , owl::prIncomplete , owl::prEmpty , owl::prError , owl::prSyntax , owl::prAmbiguous , owl::prIncompNoFill }
	Validation result type. More...

Detailed Description

TValidator forms the base class for several ObjectWindows classes that encapsulate validation objects.

The following derived classes make it easy for you to add data validation to your applications.

• TFilterValidator and its derived class, TRangeValidator, check an input field as the user types data into the field in order to determine the validity of the entered data.
• TPXPictureValidator compares user input with a picture of a data format.
• TLookupValidator compares a string typed by a user with a list of acceptable values.

Enumeration Type Documentation

TPicResult

enum owl::TPicResult

Validation result type.

TPicResult is the result type returned by the Picture member function of TPXPictureValidator. The result type indicates whether the data entered into the edit control matches a specified format. For example, prIncomplete indicates that the data entered is missing some information that was specified in the format picture of the data.

Enumerator
prComplete
prIncomplete
prEmpty
prError
prSyntax
prAmbiguous
prIncompNoFill

Definition at line 128 of file validate.h.

TValidatorOptions

enum owl::TValidatorOptions

Bit-register flags used with TValidator::SetOption and UnsetOption.

Enumerator
voFill	Option to fill in chars on IsValidInput checks. Used by picture validators to indicate whether to fill in literal characters as the user types.
voTransfer	Option to perform conversion & transfer. The validator handles data transfer for the input line. Currently only used by range validators.
voOnAppend	Option to only validate input on appending. Used by picture validators to determine how to interact with edit controls.
voReserved	Reserved for future use.

Definition at line 33 of file validate.h.