Go to the previous (positional) record in the DataSet.
bforward = DSOPREV (ctrlentID, ctrlclassID, DSOID, circular)
DSOPREV accepts arguments for the following parameters.
Parameter | Description |
---|---|
CtrlentID | Has the format WindowName.ControlName, where WindowName is the identifier of the window that contains the affected control, and ControlName is the identifier of the control. Notice that a period separates the two values. |
ctrlclassID | The type of control that recognizes the event. The window control type is the only valid entry. |
DSOID | The name of the DataSet, or the ordinal number of the DataSet (its position in the list of DataSets that appears in the Form Designer's Edit Selection Criteria dialog box) |
Circular | Boolean flag that when set to 0 stops at the first record, when 1 backs up to the last record after the first. |
True or false. If false, then program execution returns to the calling procedure. If true, then event processing goes to the next level.
DSOABS, DSOFIRST, DSOLAST, DSONEXT events
DSOPREV uses the DSOABS event