FIX: Set Collate Causes Display Problems for Related Tables

• Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a

SYMPTOMS

Creating indexes with the Collate command set to anything other than "Machine" causes display problems for related tables.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This has been corrected in Visual FoxPro 6.0.

MORE INFORMATION

When creating indexes with the Collate command set to anything other than "Machine" and you use a child table that does not have any related records, the child table's Browse window updates incorrectly. The Browse window shows the related records for the previously selected parent record.

Steps to Reproduce Behavior

1. Create two tables as shown below:

   
         CREATE TABLE tbl1(a1 c(1), b1 c(1))
         INSERT INTO tbl1 VALUES('1','2')
         INSERT INTO tbl1 VALUES('1','3')
         INSERT INTO tbl1 VALUES('2','2')
         INSERT INTO tbl1 VALUES('2','3')
         INSERT INTO tbl1 VALUES('6','3')
   
         CREATE TABLE tbl2(c2 c(1),d2 c(1))
         INSERT INTO tbl2 VALUES('1','1')
         INSERT INTO tbl2 VALUES('3','')
         INSERT INTO tbl2 VALUES('2','6')
         INSERT INTO tbl2 VALUES('4','')
         INSERT INTO tbl2 VALUES('5','2') 




2. Create a program and place the following commands in the program:

   
         SET EXACT OFF
   
         SET COLLATE TO "general"
         ** To get the correct behavior comment previous line **
         ** and un-Comment the following line:                **
         * SET COLLATE TO "machine"
   
         CLOSE DATABASE ALL
         USE tbl1 IN 0
         INDEX ON a1 + b1 TAG indtab1
         USE tbl2 IN 0
         SELECT tbl2
         SET RELATION TO tbl2.d2 INTO tbl1
         SELECT tbl1
         DEFINE WINDOW win1 FROM 20,10 to 30,40 CLOSE FLOAT GROW
         BROWSE WINDOW win1 NOWAIT
         RELEASE WINDOW win1
         SELECT tbl2
         DEFINE WINDOW win2 FROM 10,10 to 20,40 CLOSE FLOAT GROW
         BROWSE WINDOW win2 NOWAIT
         RELEASE WINDOW win2 




3. Run the program created in step 2.



4. When the Browse windows open, the parent table (TBL2) window should get the focus. The record pointer is located on the first record for the parent table (TBL2). The Browse window for TBL1 displays two records (1,2) and (1,3).



5. In the parent table (TBL2) window move the cursor from the first record (1,1) to the second record (3, '').
   
   The child table window (TBL1) should not display any records. However, note that the same records (1,2 and 1,3) are displayed in the child table, as when record number one of parent table (TBL2) was selected.



6. Move the cursor in the parent table (TBL2) to the third record and then back to the second record.
   
   The child table window should not display any records. However, note that the same record is displayed (6,3), as when record number three of the parent table (TBL2) was selected.
   
   If the Collate command is set to "Machine" when you run the program, the Browse window for the child table (TBL1) updates correctly.

Additional query words: kbvfp600fix

Keywords :
Version : WINDOWS:5.0,5.0a
Platform : WINDOWS
Issue type : kbbug