Solved

error type mismatch when loading vb listbox1

Posted on 2014-01-19
19
426 Views
Last Modified: 2014-01-20
Folks

Need assistance, when I load a listbox I receive a error 13 type mismatch, can anyone assist, I guess it should be something to do with what field type I am loading, need help

below is my sample code


  Set oRsOracle = oConOracle.Execute(strSQL)

'Then add that to the list box

'ListBox1.AddItem ListBoxText
 
  Do Until oRsOracle.EOF
    ListBox1.AddItem oRsOracle.Fields(4).Value
    oRsOracle.MoveNext
  Loop
 
  oRsOracle.Close
0
Comment
Question by:rutgermons
  • 8
  • 7
  • 4
19 Comments
 
LVL 46

Expert Comment

by:Martin Liss
ID: 39792222
Have you set the RowSource  type of the listbox to value list?
0
 

Author Comment

by:rutgermons
ID: 39792270
hi Martin , nope! the data comes from oracle , I have set the variable strSQL


Dim strSQL As String

strSQL = "SELECT *FROM QUERY WHERE APP ='vehicles'"
   
    MsgBox (strSQL)
   
    Set oRsOracle = oConOracle.Execute(strSQL)

how and where do I set the rowsource type as you suggest?

keen for your guidance
0
 
LVL 46

Expert Comment

by:Martin Liss
ID: 39792329
It's a property of the Listbox.
0
VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

 

Author Comment

by:rutgermons
ID: 39792468
Can't find it, it doesnt seem(hope i am wrong) an option on listboxes in my excel sheet (excel 2010)
0
 
LVL 46

Expert Comment

by:Martin Liss
ID: 39792513
Can you attach your workbook or a demo workbook that illustrates the problem?
0
 

Author Comment

by:rutgermons
ID: 39792550
see attached, when I call the button to download the list and populate the listbox I get the problem
SCHEDULER.xlsm
0
 
LVL 46

Expert Comment

by:Martin Liss
ID: 39792570
I can't connect to your oracle database so I can only suggest that you try changing this

Dim oConOracle, oRsOracle

to

Dim oConOracle As New ADODB.Connection
Dim oRsOracle As New ADODB.Recordset
0
 
LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 39792853
I believe the listbox is expecting a String data type and whatever is coming back from your database isn't so I suggest converting to a string:

 Do Until oRsOracle.EOF
    ListBox1.AddItem CStr(oRsOracle.Fields(4).Value)
    oRsOracle.MoveNext
  Loop
0
 

Author Comment

by:rutgermons
ID: 39792887
No luck tagit, so the data i have are where clauses used for sql queries

let's say SELECT *FROM QUERY WHERE APP, the query object field I am using is the actual where clause itself

where "field 1 = 'car' and startdate ='2014-01-12'", im wondering if the varying where clause values are causing the problem
0
 
LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 39792901
It may be, that was my first thought as well but just had to rule out the basic type conversion first.


let's say SELECT *FROM QUERY WHERE APP, the query object field I am using is the actual where clause itself

this I don't understand.  Are QUERY and APP variables in Oracle or VBA?

Where do you get where "field 1 = 'car' and startdate ='2014-01-12'" from?
0
 

Author Comment

by:rutgermons
ID: 39792994
Tagit, those are variables in Oracle

but the field that I am displaying is a field/column called "clause" in the query table and this contains the actual where clauses
0
 
LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 39793002
Ok then I would start by debugging what is being returned by the query:

Do Until oRsOracle.EOF
    debug.print oRsOracle.Fields(4).Value
    'ListBox1.AddItem oRsOracle.Fields(4).Value
    oRsOracle.MoveNext
  Loop

Note i've commented out the AddItem line.  Check the "Immediate Window" in the VBA editor for the output
0
 

Author Comment

by:rutgermons
ID: 39793023
ok, so I get to see all the records in the immediate window, not something obvious but is there a imit to the amount or rows possible in a list box or field lenghts?
0
 
LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 39793037
(EDIT) Can you post what was in the debug Window?  Getting an idea of the data may help
0
 
LVL 42

Accepted Solution

by:
Rob Jurd, EE MVE earned 500 total points
ID: 39793188
This test works fine in your workbook.  I've truncated the data, which you might want to try

Sub listTest()
    ListBox1.Clear
    Dim x As Variant
    For Each x In Array("password", "username", "myfields", "myvalues", "january")
        ListBox1.AddItem Left(x, 5)
    Next x
    
End Sub

Open in new window


So I suspect it will be due to some of the data coming in so try this:

Do Until oRsOracle.EOF
    debug.print oRsOracle.Fields(4).Value
    ListBox1.AddItem Left(oRsOracle.Fields(4).Value,10)
    oRsOracle.MoveNext
  Loop

Open in new window

0
 

Author Comment

by:rutgermons
ID: 39793555
wow, that works like a charm!

what exactly does this fix do? is this something to do with dodgy characters between lines (for lack of a better phrase)?

thanks Rob! your efforts are really appreciated
0
 
LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 39793571
no worries.  all i did was trunacate the response.  You drew me to that conclusion and from your comments I suspected that some of the data is quite large coming back.  Each record in a listbox might be limited to 255 characters but thats just a guess :)
0
 

Author Closing Comment

by:rutgermons
ID: 39793577
yep! the where clauses are longwinded and many)  thanks a stack
0
 
LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 39793580
Actually it could be dodgy chars because I only included the first 10 characters of each record.  Going to be really hard to know unless I can see the full content of each record via the immediate window.
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction This Article briefly covers methods of calculating the NPV and IRR variants in Excel as well as the limitations in calculating and interpreting IRR results. Paraphrasing Richard Shockley, author of my favourite finance reference tex…
Excel can be a tricky bit of software to get your head around. Whilst you’ll be able to eventually get to grips with the basic understanding of how to get by, there are a few Excel tips that not everybody will even know about let alone know how to d…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…

778 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question