Microsoft KB Archive/129229

= BUG: READ DEACTIVATE Runs When BROWSE Called From VALID of GET =

Article ID: 129229

Article Last Modified on 5/6/2003

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APPLIES TO


 * Microsoft Visual FoxPro 3.0 Standard Edition
 * Microsoft Visual FoxPro 3.0b Standard Edition
 * Microsoft Visual FoxPro 5.0 Standard Edition
 * Microsoft Visual FoxPro 5.0a
 * Microsoft Visual FoxPro 6.0 Professional Edition

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This article was previously published under Q129229



SYMPTOMS
In a READ with a DEACTIVATE clause, calling a BROWSE from the VALID clause of a GET triggers the READ DEACTIVATE clause.



CAUSE
As the active window changes, the READ DEACTIVATE is executed. In FoxPro version 2.x, the READ DEACTIVATE is not called when the BROWSE is executed from the VALID clause of the GET.



STATUS
Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.



RESOLUTION
An alternative is to modify your code to use a Form and a Grid instead of the BROWSE command. The Grid object is part of the form and interacts with all of the objects in a form. Another option is to code a special case in the READ DEACTIVATE clause. For example, you could set a flag when the BROWSE is first activated. In the READ DEACTIVATE, verify the value of the variable, and if the BROWSE has been called, RETURN .F. from the READ DEACTIVATE. The following sample code illustrates this method: *Declare a variable that will control whether the READ DEACTIVATE * returns .T.  cDeactBrow=.f.   CREATE TABLE test (one c(6), two C(20)) APPEND BLANK

DEFINE WINDOW wintest FROM 1,1 TO 20,20 FLOAT GROW ZOOM ACTIVATE WINDOW wintest @ 1,1 GET nvar DEFAULT 1 PICTURE "@*N Show Browse" VALID browser READ CYCLE MODAL ; DEACTIVATE readdeact

CLEAR WINDOWS

PROCEDURE browser cDeactBrow=.f.  BROWSE NORMAL

PROCEDURE readdeact WAIT WINDOW "READ DEACT Shouldn't be called" IF cDeactBrow=.F. &&Case where you are in the VALID clause of the GET RETURN .F.      cDeactBrow=.T. && Reset the variable ELSE RETURN .T.  ENDIF



MORE INFORMATION
This illustrates a behavioral difference between FoxPro versions 2.x and Visual FoxPro version 3.0 for Windows. Because the BROWSE window is different from the READ window, the behavior exhibited in Visual FoxPro for Windows seems more logical.

For more information about differences between FoxPro 2.x and Visual FoxPro version 3.0, search for "Differences Between FoxPro 2.6 and Visual FoxPro" using the FoxPro Help menu.

Additional query words: grid kbvfp300 kbvfp500 kbvfp600

Keywords: kbbug kbcode KB129229

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