ID Number: Q84270
1.00
WINDOWS
Summary:
The Spin Button custom control (SPIN.VBX) incorrectly accepts a value
of 2 for its SpinOrientation property. The only values it should
accept are 0 (Vertical), and 1 (Horizontal). A value of 2 has no
meaning to the SpinOrientation property, yet does not cause an error,
as other incorrect values do, in either run or break mode.
Microsoft has confirmed this to be a problem in Microsoft Professional
Toolkit for Microsoft Visual Basic programming system version 1.0 for
Windows. We are researching this problem and will post new information
here as it becomes available.
More Information:
SpinOrientation is a property of the Spin Button custom control that
determines whether the button arrows point vertically (SpinOrientation
= 0) or horizontally (SpinOrientation = 1). Values other than 0 or 1
should cause the error message "Invalid property value".
Steps to Reproduce Problem
--------------------------
1. Run Visual Basic, or from the File menu, choose New Project (ALT,
F, N) if Visual Basic is already running. Form1 is created by
default.
2. From the File menu, choose Add File. In the Files box, select the
SPIN.VBX custom control file. The Spin Button tool appears in the
Toolbox.
3. Add a Spin Button to Form1.
4. Press F5 to run the program.
5. From the Run menu, choose Break to pause the program.
6. In the Immediate window, enter the following:
Spin1.SpinOrientation = 2
No error occurs; however, an error should occur, because 2 is not a
valid selection for the SpinOrientation property. If, however, you
enter "Spin1.SpinOrientation = 3" in the Immediate window, the error
message "Invalid property value" is returned.
The same problem also occurs when the SpinOrientation is changed
programmatically, as in the following example:
1. Add a Spin Button and four command buttons to Form1.
2. Add the following code:
Sub Command1_Click ()
Spin1.SpinOrientation = 0 'valid: vertical
End Sub
Sub Command2_Click ()
Spin1.SpinOrientation = 1 'valid: horizontal
End Sub
Sub Command3_Click ()
Spin1.SpinOrientation = 2 'invalid: but no error given
End Sub
Sub Command4_Click ()
Spin1.SpinOrientation = 3 'invalid: error message given
End Sub
3. Press F5 to run the program.
When you choose any of the four command buttons, the SpinOrientation
property of Spin1 is changed. Command1 and Command2 change the
SpinOrientation to its valid values, 0 and 1, respectively. Command3
changes SpinOrientation to 2, which is incorrectly ignored by the Spin
Button control. Command4 changes SpinOrientation to 3, another invalid
value, but which correctly gives the error message "Invalid property
value" when chosen.
Additional reference words: 1.00