Microsoft KB Archive/138607

= BUG: Can't Enter Period in a Text Box with Scientific Notation =

Article ID: 138607

Article Last Modified on 5/7/2003

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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 Q138607



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

Keywords: kbbug kbprogramming KB138607

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