Update a text box based on a combo box

[fleschnj]

Hello almighty Access Gurus.

I'm in a bit of a tough spot and the solution to this problem has just been eluding me for over a week. I'm hoping someone can help me.

On a form, I have two combo boxes. They are called cbotopics and cbosources. I have what appears in cbosources limited by what is selected in cbotopics. I am using this visual basic code to do it.

Private Sub cbotopics_AfterUpdate()

Me.cbosources.RowSource = "SELECT source FROM" & _
" SourceNotes WHERE topic = " & Me.cbotopics & _
" ORDER BY Source"
Me.cbosources = Me.cbosources.ItemData(0)

End Sub

Now below those two combo boxes, I have a text box. (tbnotes)

I would like tbnotes to display information based on what is selected in cbosources.

How? I've tried to do some VB code like this:

Private Sub cbosources_AfterUpdate()

Me.tbnotes.RowSource = "SELECT notes FROM" & _
" SourceNotes WHERE source = " & Me.cbosources & _
" ORDER BY Source"
Me.tbnotes = Me.cbosources.ItemData(0)

End Sub

but I keep receiving errors.

Help!

P.S I have all the needed information setup in a table called SourceNotes.

[pbaldy]

A textbox doesn't have a row source property, and you can't set its control source to SQL. You could use a DLookup() to place the value in the textbox. If there will be multiple values, it needs to be a combo or list box so you can set the row source property.