FIX: In Grid, 2nd Character Overwrites 1st If Old Value Is NULL (190111)

SYMPTOMS

Typing numeric data greater than one digit in length into a grid's textbox where the original value of the column's ControlSource is NULL and the column.Sparse = .F., causes the second character to overwrite the first character.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available. This bug is fixed in Visual FoxPro 6.0.

MORE INFORMATION

Steps to Reproduce Behavior

Run the following code from a program (.prg) file:

      PUBLIC oform1
      CREA TABLE nulltest (f1 N(10,2) NULL)
      FOR lni = 1 TO 5
         INSERT INTO nulltest VALUES (.NULL.)
      ENDFOR
      USE nulltest

      oform1=CREATEOBJECT("form1")
      oform1.SHOW
      RETURN

      DEFINE CLASS form1 AS FORM

         TOP = 0
         LEFT = 0
         HEIGHT = 268
         WIDTH = 378
         CAPTION = "Form1"
         NAME = "Form1"

         ADD OBJECT grd1 AS GRID WITH ;
            COLUMNCOUNT = 1, ;
            LEFT = 33, ;
            RECORDSOURCE = "nulltest", ;
            RECORDSOURCETYPE = 1, ;
            TOP = 28, ;
            NAME = "grd1", ;
            Column1.SPARSE = .F., ;
            Column1.NAME = "Column1"
      ENDDEFINE

Type in 25, then press the DOWN ARROW key.

RESULTS: The 2 appears, then is overwritten by the 5, and the text box value is 5.00 after you press the DOWN ARROW key. This does not happen if the grid Sparse property is .T. rather than .F., or if the field value is not NULL.