Q138607: BUG: Can’t Enter Period in a Text Box with Scientific Notation

Article: Q138607
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Operating System(s): 
Keyword(s): kbprogramming kbvfp kbvfp300bBUG kbvfp500aBUG kbvfp500bugkbbuglist
Last Modified: 11-FEB-2000

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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 
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SYMPTOMS
========

If a text box that has a Scientific Notation format and a picture clause of
Numeric (for example: 99999.999), when you press the Period key on the keyboard
to enter a period in the text box, the focus moves immediately to another
object.

CAUSE
=====

There is a format conflict between the scientific notation format and the
numeric picture clause.

WORKAROUND
==========

Either remove the numeric picture clause, and write code to validate the data,
or remove the scientific notation format.

STATUS
======

Microsoft 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.

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

Numbers displayed in scientific notation are treated as text. If you place a
picture clause on the text box that displays numbers in scientific notation, a
conflict between the two formats is created. You may enter numeric data but as
soon as you enter a period, focus is removed from the text box.

Steps to Reproduce Problem
--------------------------

Run the following program, which demonstrates the behavior described in the
SYMPTOMS section:

  Sample Code
  -----------

     *-- Create an array from which to load records in a table.
     LOCAL ARRAY aBunchONums[3,1]
     *-- Create a table
     CREATE TABLE testtube FREE (number n(14,4))
     *-- Load three records in the table with random numbers.
     =RAND(-1)
     FOR i = 1 to 3
          aBunchONums[i] = RAND()*SECONDS()*VAL(sys(11, date()))/100
     ENDFOR
     APPEND FROM ARRAY aBunchONums
     GO TOP
     *-- Instantiate a form based on custom form class, TestForm.
     frmMyForm = CREATEOBJECT("TestForm")
     *-- Add a textbox to the form with format and picture clause.
          frmMyForm.addobject("txbFooBox", "TEXTBOX")
               WITH frmMyForm.txbFooBox
                    .ControlSource = "testtube.number"
                    .Format        = "KZ^"
                    .InputMask     = "999999999.9999"
                    .Top           = 10
                    .Left          = 10
                    .Visible       = .T.
                    .Width         = 120
               ENDWITH
     *-- Display the form.
     frmMyForm.show

     READ EVENTS

     *-- Define a custom class based on the FORM baseclass.
     DEFINE CLASS TestForm AS FORM
       CAPTION     = "Period Test"
       AUTOCENTER  = .T.
       HEIGHT      = 120
       WIDTH       = 140
     *-- Add command button to move between records.
          ADD OBJECT cmdNext AS COMMANDBUTTON ;
              WITH ;
              TOP            = 50, ;
              LEFT           = 20, ;
              HEIGHT         = 24, ;
             CAPTION        = "Next"
     *-- Add command button to exit the program (form).
         ADD OBJECT cmdQuit AS COMMANDBUTTON ;
              WITH ;
              TOP            = 80, ;
              LEFT           = 20, ;
              HEIGHT         = 24, ;
              CAPTION        = "Quit"
     *-- Add custom code to the Click event of cmdNext.
         PROCEDURE cmdNext.click
              SKIP
              IF EOF()
                 GO TOP
              ENDIF
              THISFORM.REFRESH
         ENDPROC
     *-- Add custom code to the Click event of cmdQuit.
          PROCEDURE cmdQuit.click
              THISFORM.Release
              CLEAR EVENTS
         ENDPROC

    ENDDEFINE

    *-- End custom class definition.
     *-- End program.

When you run this program, press the TAB key to move to the text box and enter
numbers. If you attempt to enter a period in the text box at any time, the focus
is moved immediately to another object on the form.

Additional query words: scientific textbox kbvfp300 kbvfp500 kbvfp600

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Keywords          : kbprogramming kbvfp kbvfp300bBUG kbvfp500aBUG kbvfp500bug kbbuglist
Technology        : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b kbVFP500 kbVFP600 kbVFP500a
Version           : WINDOWS:3.0,3.0b,5.0,5.0a,6.0
Issue type        : kbbug

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