Q162256: FIX: TextBox Value in Grid Column Using Numeric ControlSource

Article: Q162256
Product(s): Microsoft FoxPro
Version(s): 3.00 3.00b
Operating System(s): 
Keyword(s): kbHWMAC kbvfp kbvfp300bBUGkbbuglist kbfixlist
Last Modified: 24-MAR-2000

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The information in this article applies to:

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

When you enter numeric data of a number greater than 10 into a text box within a
grid on a FoxPro form, it is correctly entered into the table. However, if the
Grid1.Column1.Text1 value is referenced, it appears as zero. This behavior only
occurs in version 3.0b.

RESOLUTION
==========

Set each Grid TextBox InputMask property as follows:

    Grid1.TextBox1.InputMask = 9999.99
    Grid1.TextBox2.InputMask = 9999.99

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products listed at
the beginning of this article. This problem was corrected in FoxPro 5.0 for
Windows.

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

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

1. Copy the following code to a test program and run it to create a Test.dbf
  that contains two sample records:

        ***** Table setup for TEST *****
        CREATE TABLE 'test.dbf' ;
           (DISCOUNT N(10, 2) NOT NULL, ;
           AMOUNT N(10, 2) NOT NULL, ;
           OTHER N(10, 2) NOT NULL)

        ***** Add two records for testing *****
        INSERT INTO test (DISCOUNT, AMOUNT, OTHER) ;
           VALUES (7.00, 4.00, 0.00)
        INSERT INTO test (DISCOUNT, AMOUNT, OTHER) ;
           VALUES (9.00, 15.00, 10.00)

2. Create a new form, and add the Test table to the data environment.

3. Drag the Test table from the data environment to the form to create a grid.

4. Set the following grid properties:

        Grid1.ColumnCount = 2
        Column1.ControlSource = test.discount
        Header1.Caption = "Discount" (without the quotes)
        Column2.ControlSource = test.amount
        Column2.Header1.Caption = "Amount" (without the quotes)

5. On the Form Controls toolbar, click Label and place three Label controls on
  the form to the right of the grid.

6. Set the following Caption properties on the three Labels (without the
  quotes):

        Label1.Caption = "Value"
        Label2.Caption = "IsZero?"
        Label3.Caption = "Field"

7. On the Form Controls toolbar, click TextBox and place three TextBoxes on the
  form, one to the right of each label.

8. Set the following Name properties on the three TextBoxes:

        Text1.Name = txtNewValue
        Text2.Name = txtZero
        Text3.Name = txtNewField

9. Enter the following code in the LostFocus event of the (Discount column)
  Grid1.Column1.Header1.Text1:

        THISFORM.txtNewvalue.Value = THIS.Value
        IF THIS.Value = 0
           THISFORM.txtZero.Value = "Yes"
        ELSE
           THISFORM.txtZero.Value = "No"
        ENDIF
        THISFORM.txtNewField.Value = test.discount

10. Enter the following code in the LostFocus event of the (Amount column)
  Grid1.Column2.Header1.Text1:

         THISFORM.txtNewvalue.Value = THIS.Value
         IF THIS.Value = 0
            THISFORM.txtZero.Value = "Yes"
         ELSE
            THISFORM.txtZero.Value = "No"
         ENDIF
         THISFORM.txtNewField.Value = test.amount

11. Run the form.

12. Enter a new number in the first record of the form's Discount column and
  notice that if the number entered is less than 10 that the number is
  displayed correctly in the TextBox beside "Value" and the answer displayed
  in the TextBox beside "IsZero?" is correct.

13. Repeat step 12 for the first record of the Amount column.

14. Enter a new number that is greater than 10 in the first record of the
  Discount column. Notice that the number displayed in the "Value" TextBox is
  "0" and the answer displayed in the "IsZero?" TextBox is incorrect.

15. Repeat step 14 for the first record of the Amount column.

REFERENCES
==========

If you are not familiar with creating forms, or using the grid control, please
see:

Visual FoxPro Developer's Guide, chapters 9 and 11
(c) Microsoft Corporation 1997, All Rights Reserved.
Contributions by Perry Newton, Microsoft Corporation


Additional query words:

======================================================================
Keywords          : kbHWMAC kbvfp kbvfp300bBUG kbbuglist kbfixlist
Technology        : kbHWMAC kbOSMAC kbVFPsearch kbAudDeveloper kbVFP300bMac kbVFP300 kbVFP300b
Version           : 3.00 3.00b
Issue type        : kbbug
Solution Type     : kbfix

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