LooperDeleteSelect (Function)

WINDEV, WEBDEV AND WINDEV MOBILE
ONLINE HELP

Version:

Home | Sign in | English

Help

WLanguage

WLanguage functions

Controls, pages and windows

Deletion in a browsing Looper control

Referential integrity and browsing Looper control

Deletion in a browsing Looper control and Trigger

Management of errors

Locking the linked data file

See also

Functions for managing the Looper controls

LooperRestorePositionAndSelection

LooperSave

LooperSavePositionAndSelection

Use conditions
Deletion in a browsing Looper control
Referential integrity and browsing Looper control
Deletion in a browsing Looper control and Trigger
Management of errors
Locking the linked data file

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

LooperDeleteSelect (Function)

In french: ZoneRépétéeSupprimeSelect

Deletes the selected rows from a browsing or memory Looper control.

Example

// Deletes all selected rows
IF YesNo("Do you really want to delete the selected customers?") THEN
LooperDeleteSelect(LOOP_Customer_Display)
END

Syntax

LooperDeleteSelect(<Looper control>)

<Looper control>: Control name

Name of Looper control to use.
If this parameter is equal to an empty string (""), the deletion will be performed in the current Looper control.

Remarks

Use conditions

LooperDeleteSelect can be used on a browsing or memory Looper control.

Deletion in a browsing Looper control

LooperDeleteSelect deletes the corresponding records from the data file associated with the control. If items are linked to other data files, no modification is automatically performed on these linked data files.

Referential integrity and browsing Looper control

If the management of referential integrity is enabled (HSetIntegrity), HErrorIntegrity must be called after LooperDeleteSelect to check the integrity. If an integrity error is detected, the row is not deleted and it remains visible in the control.

Deletion in a browsing Looper control and Trigger

You have the ability to activate a trigger when deleting a record from a browsing Looper control. See the documentation about HDescribeTrigger for more details.

Management of errors

The ErrorOccurred variable is set to True if the deletion fails. To find out the error details, use ErrorInfo.

Locking the linked data file

If the data file is locked in the current process, LooperDeleteSelect deletes the specified row and unlocks the data file.

Component : wd250obj.dll