Q195408: PRB: Specifying View KeyField Sets Other Fields Updateable

Article: Q195408
Product(s): Microsoft FoxPro
Version(s): MACINTOSH:3.0b; WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Operating System(s): 
Keyword(s): kbDatabase kbvfp kbvfp300 kbvfp300b kbvfp500 kbvfp500a kbvfp600 KbDBFDBC
Last Modified: 10-DEC-1999

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a, 6.0 
- Microsoft Visual FoxPro for Macintosh, version 3.0b 
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SYMPTOMS
========

Specifying the keyfield of a View sets the rest of the fields to be updateable,
although the fields are not being set to be updateable explicitly.

RESOLUTION
==========

Use a DBSETPROP() command similar to the following to clear the fields in the
view that you do not want to be updateable:

     DBSETPROP("TstVw.Fld1","Field","Updatable",.F.)

Also, you can open the view in the View Designer and clear the fields that you do
not want to be updateable, from the Update Criteria tab.

STATUS
======

Microsoft is researching this behavior and will post new information here in the
Microsoft Knowledge Base as it becomes available.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

Create and run a program with the following code:

     CLOSE DATA ALL
     CREATE DATA TstDBC
     CREATE TABLE Tbl1 (Fld1 c(10),Fld2 d, Fld3 n(4))
     FOR i = 1 TO 4
        INSERT INTO Tbl1 VALUES (STR(i),DATE(),1234)
     ENDFOR
     CREATE SQL VIEW TstVw AS SELECT * FROM Tbl1
     USE TstVw
     =DBSETPROP("TstVw.Fld1","Field","KeyField",.T.)
     ? DBGETPROP("TstVw.Fld2","Field","Updatable")
     ? DBGETPROP("TstVw.Fld3","Field","Updatable")

If the table for which the view is being created has a primary key, then that
field is set as the keyfield automatically when the view is created. The
following code reproduces this behavior:

     CLOSE DATA ALL
     CREATE DATA TstDBC
     CREATE TABLE Tbl1 (fld1 c(10) PRIMARY KEY,fld2 d, fld3 n(4))
     FOR i = 1 TO 4
        INSERT INTO Tbl1 VALUES (STR(i),DATE(),1234)
     ENDFOR
     CREATE SQL VIEW TstVw AS SELECT * FROM tbl1
     USE TstVw
     ? DBGETPROP("TstVw.Fld2","Field","Updatable")
     ? DBGETPROP("TstVw.Fld3","Field","Updatable")

Note that both of the DBGETPROP() commands return .T., meaning that both of the
fields are updateable.

Additional query words:

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Keywords          : kbDatabase kbvfp kbvfp300 kbvfp300b kbvfp500 kbvfp500a kbvfp600 KbDBFDBC 
Technology        : kbHWMAC kbOSMAC kbVFPsearch kbAudDeveloper kbVFP300bMac kbVFP300 kbVFP300b kbVFP500 kbVFP600 kbVFP500a
Version           : MACINTOSH:3.0b; WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Issue type        : kbprb
Solution Type     : kbpending

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