DOCUMENT:Q190213  07-AUG-1998  [vbwin]
TITLE   :BUG: Type Mismatch Error Comparing String With Byte Array
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:6.0
OPER/SYS:WINDOWS
KEYWORDS:

======================================================================
---------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual Basic Learning, Professional, and Enterprise Editions
   for Windows, version 6.0
---------------------------------------------------------------------

SYMPTOMS
========

In Visual Basic, if you have a function returning an array of bytes and you
compare the return value with a string, you get the following error:

   Compile Error:  Type Mismatch

RESOLUTION
==========

You can bypass this error if you convert the return value of the function
using the function Cstr before comparing it with a string, as in the
following code:

   If CStr(myFunc) <> "yes" Then

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.

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

Steps to Reproduce Behavior
---------------------------

1. Create a new Standard EXE project in Visual Basic. Form1 is created by
   default.

2. Add a CommandButton to Form1 and paste the following code into the
   code window of Form1:

      Public Sub Command1_Click()
         If myFunc <> "yes" Then
            Stop
         End If
      End Sub

      Function myFunc() As Byte()
         myFunc = "yes"
      End Function

3. Press the F5 key to run the program.

4. Click on Command1. The error message "Compile Error:  Type Mismatch"
   results.

Additional query words: kbDSupport kbVBp600bug kbdss kbVBp
kbNoKeyWord
======================================================================
Version           : WINDOWS:6.0
Platform          : WINDOWS
Issue type        : kbbug

=============================================================================

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Copyright Microsoft Corporation 1998.