First see the code:
Role: Which Item is tested by Check.
Description: Create a form first, add 1 ListView control that is LV_Action, a CommandButton control. The following code is then added to the Clicked event in CommandButton (Fig. 1, 2). Specifically, in the code.
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ListViewItem lvitem; // Item object, save the ListView's Item type object.
Integer i; // cycle variable.
Integer n; // iTEM number.
String str; // result.
n = lv_action.totalitems (); // Gets the number of items for ListView.
IF (n> 0). // If there is an item. FOR i = 1 to n // loop. IRET = lv_action.getitem (i, lvitem); // Gets the ListView's Item object, which contains the check-related property. IF (IRet = 1) Then // If successful. Str = string (lvitem.StatePictureIndex); // Gets the picture index value of Check, 1 indicates unchecked. > 1 Represents the INDEX value corresponding to statePicture. This property is also checked. Str = "|"; // Add separation, make the result easy viewing. End if next end ifmessagebox ("", str); // Display result (which Item is checked by Check, "is check).
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Significance: You can use ListBox to graphically or radio (need to be controlled). This way the user interface is relatively intuitive.
Disadvantages: It may be more difficult to control. But for iTEM less applications or a good choice.
Drawings:
(1) Listbox (Note whether the checkview of ListView is selected. Order: From the top downward from left to right):
(2) Use the corresponding results displayed by MessageBox:
Because you don't understand your E article, it may not be possible to understand the help file of PowerBuilder.
It is too thorough. This article is also a problem that is encountered in the process of using PowerBuilder 8.0.
to sum up.
