PROTECT

Section for use

INITIALIZATION, VERIFICATION, VALIDATION, TRANSACTION, SFTKYS_PROCESS, or any other section, specifying the transaction number.

Syntax

PROTECT Option SeriesVarId Transaction

Description

This instruction is used to condition a screen field entry SeriesVarId. A DDS screen attribute DSPATR(PR) is generated for all fields indicated after this instruction. The attribute is preceded by an indicator in the screen file; this indicator is then activated by the program after the instruction is executed. The instruction can only be used on input or input/output fields.

Whenever this instruction is used without *ON or *OFF, it is deactivated after each screen reading (indicator reset to 0), as well as by the END_MANAGE_SFL and END_ADD_SFL instructions when placed in a MANAGE_SFL/ END_MANAGE_SFL or ADD_SFL/ END_ADD_SFL block.

It is only possible to mention a transaction number TransactionNum if this instruction is used with *ON or *OFF.

When the instruction is used with *ON, it remains activated until executed with *OFF, for the same group of variables.

Notes:

• • A variable used with a group of variables must always be used with this same group.
  • For a specific variable, this instruction cannot be used once with *ON or *OFF and another time without *ON or *OFF.

Example

IF   MODE = 'CREATE'

POS_CURSOR *ON Z_ORDER_NBR

PROTECT *OFF Z_ORDER_NBR ZO_COMPANY ZO_WAREHOUSE

POS_CURSOR *OFF Z_CUST_CODE

ELSE

POS_CURSOR *OFF Z_ORDER_NBR

PROTECT *ON Z_ORDER_NBR ZO_COMPANY ZO_WAREHOUSE

POS_CURSOR *ON Z_CUST_CODE

END

List of 4GL instructions by topic

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