JavaScript Editor js editor     Web development 

Main Page

File: ...\Samples\Solution\Controls\Lists\Lmsel.scx

This sample shows how to manage multiple items selected in a list box. The form contains a list box with the MultiSelect property set to True (.T.). A combo box on the form contains all the items that are selected in the list box.

To process the multiple-selected items in a list box — to copy them to an array or incorporate them elsewhere in your application — loop through the list items and process the ones for which the Selected property is set to true (.T.). The following code is included in the Click event of the list box to display the selected items in a combo box and the number of selected items in a text box:

В Copy Code
nNoSelected = 0    && variable to track number of selected items
THISFORM.cboSelected.Clear    && clear the combo box

* main processing loop
FOR i = 1 TO THIS.ListCount
   IF THIS.Selected(i)
      nNoSelected = nNoSelected + 1
      THISFORM.cboSelected.Additem (THIS.List(i))

THISFORM.txtNoSelected.Value = nNoSelected

In the code associated with the Init event of this form, and in many places throughout this sample application, the character string values initially added to the list are first defined with a #DEFINE directive. Each of the defined constants ends with "_LOC". Microsoft internal localization tools extract these definitions so that the strings can be translated into whatever language the application is being localized in.

See Also

JavaScript Editor js editor     Web development