NEXT-SIBLING attribute

The next entry in a list of handles, relative to a given handle.

Data type:

HANDLE

Access:

Read-only

Applies to:

Asynchronous request object handle, BROWSE widget, Buffer object handle, BUTTON widget, COMBO-BOX widget, CONTROL-FRAME widget, Data-source object handle, DIALOG-BOX widget, EDITOR widget, FIELD-GROUP widget, FILL-IN widget, FRAME widget, IMAGE widget, LITERAL widget, MENU-ITEM widget, Procedure object handle, ProDataSet object handle, RADIO-SET widget, RECTANGLE widget, SELECTION-LIST widget, Server object handle, SLIDER widget, Socket object handle, Server socket object handle, SESSION system handle, SUB-MENU widget, TEXT widget, TOGGLE-BOX widget, WINDOW widget

Table 91 summarizes the value of NEXT-SIBLING for each relevant handle type.

 

Table 91:

NEXT-SIBLING attribute values by handle type

Handle type	Value of NEXT-SIBLING
Asynchronous Request	The handle of the next asynchronous request submitted for execution on the AppServer or Web Server that is running the specified request.
Procedure	The handle of the next persistent procedure in the current ABL session. If the current procedure is a proxy for a persistent procedure running on an AppServer or for a Web service, specifies the next procedure object bound to the same server handle.
Server	The next server handle created in the current ABL session (independent of subtype).
Socket and Server-socket	The next socket handle in the chain of socket handles for the current ABL session. Returns the Unknown value (?) for the last handle in the chain.
ProDataSet object	The handle to the next dynamic ProDataSet object in the chain of ProDataSet objects for the current ABL session, which is available after using the SESSION:FIRST-DATASET attribute.
Dynamic query	The handle to the next dynamic query in the chain of dynamic queries for the current ABL session, which is available after using the SESSION:FIRST-QUERY attribute.
Dynamic data-source object	The handle to the next dynamic data-source object in the chain of dynamic data-source objects for the current ABL session, which is available after using the SESSION:FIRST-DATA-SOURCE attribute.
Buffer object	The handle to the next buffer object in the session buffer list, which is available after using the SESSION:FIRST-BUFFER attribute.
Widget	The handle of the next widget in the widget list. Note: A widget must first be realized before it can become part of the list. A hidden widget cannot become part of the list since it is not realized. A widget that is already part of the list can be hidden and it remains part of the list.

If the given handle is the last handle in the list, NEXT-SIBLING assumes the value of an invalid handle. To check the validity of a handle, use the VALID-HANDLE function.

See also:

PREV-SIBLING attribute