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  • Multi-selection List Box control
  • Modified element
  • Modifying an element in the browser
  • Miscellaneous
WINDEV
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WEBDEV
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Stored procedures
Modifies an element in a memory List Box control (standard List Box or ListView) or in a memory Combo Box control.
Remark: ListModify can be used on the single-selection and multi-selection List Box controls.
WEBDEV - Browser code Caution: The element will be modified on the page displayed in the browser only. For more details, see Remarks.
Versions 15 and later
Android This function is now available for Android applications.
New in version 15
Android This function is now available for Android applications.
Android This function is now available for Android applications.
Versions 16 and later
WINDEVLinux This function is now available for WINDEV applications in Linux.
New in version 16
WINDEVLinux This function is now available for WINDEV applications in Linux.
WINDEVLinux This function is now available for WINDEV applications in Linux.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Modify the element found at subscript 4 in "LIST_CustomerList"
ListModify(LIST_CustomerList, "Moore", 4)
WINDEVReports and QueriesUser code (UMC)
// Modify the image found at subscript 4 in "LSV_Diving"
ListModify(LSV_Diving, "Coral Reef", "C:\MyImages\CoralReef.JPG", 4)
Syntax
ListModify(<List Box control> , <Element> [, <Image> [, <Element index>]])
<List Box control>: Control name
Name of the control to be used:
  • List Box control,
  • Combo Box control.If this parameter corresponds to an empty string (""), the element is modified in the List Box control (or Combo Box) to which the current event belongs.
WEBDEV - Browser code The name of List Box or Combo Box control to use must necessarily be specified.
<Element>: Character string
Element to modify in the specified List Box (or Combo Box) control.
WINDEVJava For a ListView control, this parameter corresponds to the image caption.
WEBDEV - Server codeWEBDEV - Browser codePHP The Carriage Return characters (CR) and the tabulations (TAB) are not supported.
WEBDEV - Server code To add several consecutive spaces, non-breakable space characters must be used: Charact(160).
<Image>: Optional character string
Name and path of image that will be added into a ListView control. This parameter is taken into account for ListView controls displayed in ListView mode only.
If this parameter is not specified, the default image (defined in the "Details" tab in the description window of control) will be used.
WEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadPHP This parameter is not available.
<Element index>: Optional integer
Index of the element to be modified.
If this parameter:
  • is not specified or if it is set to -1, the current element is modified. ListModify has no effect if there is no current element.
  • is equal to 0, the first element is modified.
  • is greater than the number of elements found in the List Box (or Combo Box) control, a WLanguage error occurs. The number of elements found in a List Box (or Combo Box) control is returned by ListCount.
PHP ListModify has no effect if this parameter is equal to 0 or if it is greater than the number of elements found in the List Box (or Combo Box) control.
Remarks

Multi-selection List Box control

If one or more elements are selected in the List Box control, ListModify deselects no element.
WINDEVWEBDEV - Server codeReports and QueriesAndroidiPhone/iPadJavaUser code (UMC)Ajax

Modified element

When modifying an element containing an invisible value (specified by gStoredValue), gStoredValue must be re-used. Otherwise, this invisible value will be lost during the modification.
For example:
  • adding "MyElement":
    ListAdd(COMBO_MyCombo, "MyElement" + gStoredValue("1"))
  • modifying "MyElement":
    ListModify(COMBO_MyCombo, "MyNewElement" + gStoredValue("1"))
WEBDEV - Browser code

Modifying an element in the browser

When modifying an element in browser code, this element is modified only for the page displayed in the browser. To make changes to this element on the server as well, ListModify must be executed on the server.
Calling ListModify in browser code is useful when using AJAX technology, in "Programmed AJAX" mode (via AJAXExecute or AJAXExecuteAsynchronous).
Reminder: In "Automatic and immediate AJAX" mode, all you have to do is switch the server process containing ListModify to automatic AJAX mode. That's it! No additional programming is required. For more details, see AJAX.

Miscellaneous

  • To modify an element in a Table control, use TableModify.
  • ListModify can be used on a "Combo Box" table column.
Component: wd270obj.dll
Minimum version required
  • Version 9
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