BUG: BROWSE with Child Relationship Gives Incorrect InfoLast reviewed: June 27, 1995Article ID: Q117409 |
The information in this article applies to:
SYMPTOMSIf two sets of one-to-many relationships are set up and two Browse windows are created using fields from both the parent and the child databases, the second Browse window will show the first parent database as having no children even if children do exist. To illustrate this situation, issue the following commands:
SET DEFAULT TO <FoxPro_directory>\TUTORIAL USE customer IN 1 USE invoices IN 2 SET ORDER TO TAG cno OF invoices.cdx IN invoices SET RELATION TO cno INTO invoices ADDITIVE SET SKIP TO invoices USE offices IN 3 SELECT 3 USE salesman IN 4 SET ORDER TO TAG ono OF salesman.cdx IN salesman SET RELATION TO ono INTO salesman ADDITIVE SET SKIP TO salesman SELECT 1 DEFINE WINDOW custinv FROM 1,1 TO 20,10 BROWSE WINDOW custinv FIELDS customer.cno, invoices.cno NOWAIT SAVE SELECT 3 DEFINE WINDOW offsale FROM 1,15 TO 20,25 BROWSE WINDOW offsale FIELDS offices.ono, salesman.ono NOWAIT SAVEThe last Browse window shows OFFICES.ONO with no SALESMAN.ONO fields. This is incorrect, since there are multiple SALESMAN records with a "1" in the ONO field. If you scroll the window, the child records will appear. If you click outside the Browse window and then click the Browse window again, the child records will disappear. However, the child records will appear and remain visible if some other record, such as OFFICES.ONO 2, is selected in the Browse window.
CAUSEThe record pointer for SALESMAN.ONO is at the end of the file (EOF). Once another record is selected in the Browse window, the record pointer for SALESMAN is moved off from the end of the file and the Browse window functions as expected.
RESOLUTIONTo avoid this problem, include the following KEYBOARD command at the end of this program:
KEYBOARD "{PGDN}"This command repositions the record pointer for the parent database, OFFICES, and the child database, SALESMAN.
STATUSMicrosoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
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Additional reference words: FoxMac FoxWin 2.50 2.50a 2.50b 2.50c 2.60
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