MoveToId (Stringlist subroutine)
Move data from Stringlist to $list (Stringlist class)
This method moves data (stringlist items) from a Stringlist to a $list. MoveToId is a subroutine that accepts one argument: the $list identifier of the $list to which data is to be moved.
Syntax
sl:MoveToId( listId)
Syntax terms
| sl | A Stringlist object. |
|---|---|
| listId | The $list identifier of the $list to which data is to be moved. |
Usage notes
- All errors in MoveToId result in request cancellation.
- After MoveToId is invoked, the method Stringlist is emptied, although the object variable is still valid (non-null).
- MoveToId discards any current contents of the target $list.
- MoveToId copies to the target $list any image association that is set via BindImage.
- MoveToId simply moves the Stringlist internal data pointers to the to the target $list. It does not actually perform any data movement; therefore, it is extremely efficient.
- MoveToId is intended to facilitate the migration to the use of Stringlists of existing applications that use $lists.
- stringlists should always be used in preference to $lists, so MoveToId is provided only for the migration of existing $list applications to the use of Stringlists.
Examples
Suppose complex subroutine Summarize takes a $list identifier as its input parameter. Now, suppose some code that has a Stringlist in %list wants to pass the Stringlist to Summarize.
The following code illustrates how this can be accomplished:
%listid = $listnew %list:moveToId(%listId) call summarize(%listId) %list:moveFromId(%listId) return
See also
- MoveFromId does the converse operation (move $list data into a Stringlist)