version 3
Before selection {(table)} Boolean
Parameter | Type | Description | |
table | Table | Table for which to test if record pointer | |
is before the first selected record, or | |||
Default table, if omitted | |||
Function result | Boolean | Yes (TRUE) or No (FALSE) |
Description
Before selection returns TRUE when the current record pointer is before the first record of the current selection of table. Before selection is commonly used to check whether or not PREVIOUS RECORD has moved the current record pointer before the first record. If the current selection is empty, Before selection returns TRUE.
To move the current record pointer back into the selection, use LAST RECORD, FIRST RECORD, or GOTO SELECTED RECORD. NEXT RECORD does not move the pointer back into the selection.
Before selection also returns TRUE in the first header when a report is being printed with PRINT SELECTION or from the Print menu. You can use the following code to test for the first header and print a special header for the first page:
` Method of a form being used as output form for a summary report $vpFormTable:=Current form table Case of ` ... : (Form event=On Header) ` A header area is about to be printed Case of : (Before selection($vpFormTable->)) ` Code for the first break header goes here ` ... End case End case
Example
This form method is used during the printing of a report. It sets a variable, vTitle, to print in the Header area on the first page:
` [Finances];"Summary" Form Method Case of ` ... : (Form event=On Header) Case of : (Before selection([Finances)) vTitle := "Corporate Report 1997" ` Set the title for the first page Else vTitle := "" ` Clear the title for all other pages End case End case
See Also
End selection, FIRST RECORD, Form event, PREVIOUS RECORD, PRINT SELECTION.