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  • Overview
  • Initializing a memory Looper control
  • Adding rows (or lines) in a memory Looper control
  • Note
  • 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
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Stored procedures
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.
Versions 16 and later
Universal Windows 10 App The Looper control is available in Windows Phone.
WINDEVLinux The Looper control is available in WINDEV in Linux.
New in version 16
Universal Windows 10 App The Looper control is available in Windows Phone.
WINDEVLinux The Looper control is available in WINDEV in Linux.
Universal Windows 10 App The Looper control is available in Windows Phone.
WINDEVLinux The Looper control is available in WINDEV in Linux.
Versions 21 and later
Universal Windows 10 App The Looper control is available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App The Looper control is available in Universal Windows 10 App mode.
Universal Windows 10 App The Looper control is available in Universal Windows 10 App mode.
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:
Adding rows (or lines) in a memory Looper control
Rows can be added in a memory Looper control:

Note

To make the code easier to read, you have the ability to use the following method:
  1. Add an empty row.
  2. 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.
See also
Minimum version required
  • Version 9
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