LST - Cursor On Cursor - Add C

LST
Cursor On Cursor
Add C

Description

This diagram depicts a cursor (C) which is based upon another cursor (B). It shows how a list can be incrementally reduced using calls to lstOpenCursor() with a filter function.

Notice that the item (C1) is a direct reference to the root list (A) even though the cursor is based upon (B).

Symantics

(B) and (C) are cursors.

(C) is based upon (B).

(B) is the base list for (C).

(A) is the root list for (B) and (C).

(A) is the base list for (B).

Related Functions

lstOpenCursor()

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