GrpNext

Gets the value of the next element in a group. You can get the value of all the elements in a group. Call the GrpFirst() function to get the value of the first element, and then call this function in a loop.

Syntax

GrpNext(hGrp, Value)

hGrp:

The group handle, returned from the GrpOpen() function. The group handle identifies the table where all data on the associated group is stored.

Value:

The value returned from GrpFirst() or the latest GrpNext() call.

Return Value

The value of the next element in a group, or -1 if the end of the group has been found.

Related Functions

GrpFirst

Example

! Count all values in a group.

Count=0;

Value=GrpFirst(hGrp);

WHILE Value<>-1 DO

Count=Count+1;

Value=GrpNext(hGrp,Value);

END

Prompt("Number of values in group is "+Count:###);

See Also

Group Functions