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Using FindFirst Method with a Data Control Recordset not moving to found record

Posted on 2004-09-13
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Last Modified: 2013-12-25
Hi,

I have a strange problem I hope somebody can help me with.  
I am using VB6 (SP5) with Access XP.

I say this is a strange problem because everything works fine if run from within VB , but when I compile it to an exe the part of the functionality does not work.

I have a form (frmAddFields) with a control array of textboxes and command buttons bound to a data Control and another form called frmFind that I am using to find an item in the first form and then move to that record (in frmAddFields).  There is also a class called DataClass that manages the data control.  ( I hope that I am explaining this well enough, please ask if you need clarification)

As mentioned this works fine when run from within VB6, I click on the find button select the value I am looking for and I get a message box saying the value was retrieved and am at that record in frmAddFields.

When I run the exe though, I get the message box saying the record was retrieved but the field displayed in frmAddFields is always the first record in the table.

The code below is the portion to handle cmdFind

        Case cmdFind    'find a specified record
            Dim iReturn As Integer
            Dim iVal As Integer
            gFindString = ""
           
            With frmFind
                .addCaption = mvarFindCaption
                .recordSource = mvarFindRecordSource  'used to fill listbox of values in frmFind
                .Show vbModal
            End With
           
            If Len(gFindString) > 0 Then
                Dim sResult As String
                With mvardataCtl.Recordset
                    sResult = BuildCriteria()
                   
                    If Len(sResult) > 0 Then
                        .FindFirst sResult
                        If .NoMatch Then
                            iReturn = MsgBox(" ResItem " & gFindString & _
                            " was not found.", vbCritical)
                        Else
                            iReturn = MsgBox(" ResItem " & gFindString & _
                                " was retrieved.", vbInformation)
                           
                        End If
                    End If
                End With
            End If
           call  updateButtons

The updateButtons function just enables or disables buttons and locks the textFields in the frmAddFields.

Any help would be greatly appreciated , I just can't seem to work it out.  I am new to using data controls and classes in VB.  

Thanks in advance

Joy
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Question by:Joym123
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6 Comments
 
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Expert Comment

by:anv
ID: 12062212
ur problem is somewhere here..

 sResult = BuildCriteria()
                   
                    If Len(sResult) > 0 Then
                        .FindFirst sResult
                        If .NoMatch Then
                            iReturn = MsgBox(" ResItem " & gFindString & _
                            " was not found.", vbCritical)
                        Else
                            iReturn = MsgBox(" ResItem " & gFindString & _
                                " was retrieved.", vbInformation)
                           
                        End If
                    End If

what does BuildCriteria do??
0
 

Author Comment

by:Joym123
ID: 12063530
hi anv,

BuildCriteria just returns the string for findFirst to search for.  It checks the field type and returns a string appropriate for that field type.  

This all works fine if run from visual studio.  But when I make an exe I only get the message box saying the string was retrieved without actually displaying the found record in the text Fields.  

I have pretty much given up on finding a solution and am in the process of changing the code to do all this without a data control, just using a recordset.  

But if anyone knows what the problem is I would still like to know!

This is the function buildCriteria

Private Function BuildCriteria() As String
Dim sCriteria As String, sMessage As String
Dim fField As dao.Field
Dim iIndx As Integer

Set fField = mvardataCtl.Recordset.fields(mvarFindMatchField)

Select Case fField.Type
    Case dbInteger, dbLong, dbCurrency, dbSingle, dbDouble
        BuildCriteria = "" & mvarFindMatchField & " = " & gFindString
    Case dbDate
        BuildCriteria = "" & mvarFindMatchField & " = #" & gFindString & "#"
    Case dbText
        BuildCriteria = "" & mvarFindMatchField & " = '" & gFindString & "'"
    Case Else
        sMessage = "Sorry, you can't use the find feature on fields"
        sMessage = sMessage & " of type : " & fField.Type
        iIndx = MsgBox(sMessage, vbCritical, App.EXEName)
End Select

End Function

Cheers

Joy
0
 

Author Comment

by:Joym123
ID: 12098155
Hi,

I have solved my problem.  It had nothing to do with the data Control or any of the posted code.  

In case anyone else makes such a stupid mistake!  The problem was I had code for setting the data control in the form activate.  So when the form where the record was supposed to be shown from the find form became active again the activate event was fired and the data control pointed to the first record again.

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Accepted Solution

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modulo earned 0 total points
ID: 12861036
Closed, 500 points refunded.

modulo
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