Programming the memory Looper controls

WINDEV, WEBDEV AND WINDEV MOBILE
ONLINE HELP

Version:

Home | Sign in | English

Help

Editors

Controls (window/page/report)

Controls

Looper control

Programming the memory Looper controls

Overview

Initializing a memory Looper control

Adding rows (or lines) in a memory Looper control

Modifying the attributes or controls of a row

Deleting a row

See also

"Browsing" Looper control

"Memory" Looper control

'Image gallery' Looper control

Break in a Looper control

Characteristics of Looper control in a page

Characteristics of a Looper control in a window

Displaying a different content on each row

Events associated with Looper controls

Handling a Looper control by programming

Looper control linked to a data file

Looper: moves and gestures

Programming Looper control attributes (prefixed syntax)

Programming browsing Looper controls (prefixed syntax)

Programming memory Looper controls (prefixed syntax)

Programming the browsing Looper controls

Programming the looper attributes

Programming the memory Looper controls

Properties associated with the Looper controls

Properties associated with the attributes of a Looper control

Properties associated with the breaks of a Looper control

The Looper control

Overview
Initializing a memory Looper control
Adding rows (or lines) in a memory Looper control
Remark
Selecting a row
Modifying the attributes or controls of a row
Modifying all the attributes or controls of a row
Modifying an attribute or a control
Deleting a row

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

Programming the memory Looper controls

Overview

The main concepts for programming the memory Looper controls are as follows. Several WLanguage functions allow you to manage the memory Looper controls by programming.

Do not hesitate to see the documentation about these functions. See Functions for managing the Looper controls for more details.

Initializing a memory Looper control

The creation of a row in a Looper control is not automatically performed. It must be explicitly requested via a call to:

LooperAdd or LooperAddLine.
LooperInsert or LooperInsertLine.

Adding rows (or lines) in a memory Looper control

Rows can be added in a memory Looper control:

by LooperAddLine and LooperInsertLine: in each row, the value of each attribute or control is separated by commas.
by LooperAdd and LooperInsert: in a row, each attribute value or control value is separated by TAB.

Remark

To make the code easier to read, you have the ability to use the following method:

Add an empty row.
Assign each attribute or control one by one.

An error automatically occurs when deleting an attribute or a control. However, the display time may be longer.

Selecting a row

A row cannot be selected.

Modifying the attributes or controls of a row

Modifying all the attributes or controls of a row

To modify the attributes or controls of a specific row, use LooperModify or LooperModifyLine and specify the subscript of the row to modify.

For example:

// Modify the row #3
LooperModify(LOOP_Looper1, "Highlander" + TAB + "103min" + TAB + "Unknown" + ...
TAB + "C. Lambert" + TAB + "" + TAB + "RO120", 3)

To modify the attributes or controls of the current row, there is no need to specify the subscript.

Modifying an attribute or a control

To modify an attribute or a control, specify the name of the attribute or control to modify.

Modifying the attribute or control of a specific row: The row subscript must be specified.
Modifying an attribute or control in the current row: There is no need to specify the subscript.

Deleting a row

The deletion of a row must be explicitly requested by LooperDelete. The following syntax is used:

LooperDelete(<Looper control> [, <Subscript>])

If the subscript is specified, LooperDelete deletes the row corresponding to the subscript. Otherwise, the current row is deleted. For example:

LooperDelete(LOOP_CUSTOMER)

Deleting a row in a Looper control also deletes all the values of the attributes or controls for that row.