DOCUMENT:Q269037  23-AUG-2001  [vbwin]
TITLE   :BUG: DataCombo Loses BoundText When Recordset Re-Queried
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:2.5,2.6,6.0
OPER/SYS:
KEYWORDS:kbDatabase kbDataBinding kbVBp600bug kbGrpDSVBDB kbDSupport kbATM kbmdac270 kbado270

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The information in this article applies to:

 - Microsoft Visual Basic Professional Edition for Windows, version 6.0 
 - Microsoft Visual Basic Enterprise Edition for Windows, version 6.0 
 - ActiveX Data Objects (ADO), versions 2.5, 2.6, 2.7 
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SYMPTOMS
========

When you re-query a recordset, then binding a new recordset or otherwise
resetting the RowSource property on a DataCombo control causes the BoundText
property of a DataCombo to return the Text property.

RESOLUTION
==========

To work around the problem, set the DataCombo.Text property to itself as
follows:

DataCombo1.Text = DataCombo1.Text

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

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

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

1. Create a form in the Visual Basic form editor with three command buttons, a
   DataCombo control, the ADO data control, and a ListBox control.

2. Add the following code to the form:

   Private Sub Command1_Click()
     ' First show that the BoundText displays a number
     List1.AddItem DataCombo1.BoundText
   End Sub
   Private Sub Command2_Click()
     ' Now it displays a name!
     ' This is where we break the bindings and display the results
     ' When command1 executes DataCombo1 will show datacombo1.text 
     ' instead of datacombo1.boundtext.
     Adodc1.Refresh
     Command1_Click
   End Sub
   Private Sub Command3_Click()
     ' Here we implement the fix.
     DataCombo1.Text = DataCombo1.Text
     Command1_Click
   End Sub
   Private Sub Form_Load()
     ' You may need to change the path in the following
     ' line to point to NWIND.MDB
     Adodc1.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
       "Data Source=E:\Program Files\Microsoft Visual Studio\VB98\NWIND.MDB"
     Adodc1.RecordSource = "Employees"
     DataCombo1.BoundColumn = "EmployeeID"
     DataCombo1.ListField = "LastName"
     Set DataCombo1.RowSource = Adodc1
     Set DataCombo1.DataSource = Adodc1
     DataCombo1.Text = "1. Select a name"
     Command1.Caption = "2. List BoundText"
     Command2.Caption = "3. Requery Recordset"
     Command3.Caption = "4. Reset BoundText"
   End Sub

3. Run the program, and follow the numbered captions.

Additional query words:

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Keywords          : kbDatabase kbDataBinding kbVBp600bug kbGrpDSVBDB kbDSupport kbATM kbmdac270 kbado270 
Technology        : kbVBSearch kbAudDeveloper kbADOsearch kbADO250 kbADO260 kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVB600 kbADO270
Version           : WINDOWS:2.5,2.6,6.0
Issue type        : kbbug
Solution Type     : kbpending

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