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Microsoft Access Forum
By Richard Rost   Richard Rost on Facebook Richard Rost on Twitter Richard Rost on Google Plus Richard Rost on LinkedIn Email Richard Rost

This forum is for the discussion of Microsoft Access.

Access is my personal specialty. Have questions? Comments? Want to discuss how to do something? Post it here. Also, I get a LOT of questions sent to me in Email from people around the world. I'll post the interesting ones in here. Feel free to comment on them.

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Read string concatenation by John M @ 6/8/2018
I am having a small problem. I am trying to use a list box to show a list of forms, when you select a form from the list it will get the Record Source from that form. Here is the code:
Private Sub List0_AfterUpdate()

    Dim stFrmName As String
    Dim stRECSorce As String
    Dim myName As String
    stFrmName = Me!List0.Column(1)
    DoCmd.OpenForm stFrmName
    myName = Forms!clients.RecordSource
    'myName = (Forms! & stFrmName & .RecordSource)
    'DoCmd.Close acForm, stFrmName
    MsgBox "The information is " & stFrmName & " " & myName
End Sub
in the first myName line I entered it manually works fine. But in the second myName I get on the msgbox "Clients" and then the string Forms!Clients.RecordSource.  What am I doing wrong? I have tried several forms of string concatenation the way I understand it. Need a point in the right direction.
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Read String Concatenation by Brent @ 3/6/2012
I am sorry about being a pest, The biggest problem with doing this SQL and VBA is syntax I dont understand all the quotes and & and _ and I feel it really is dragging me down at getting a grasp of access. what I have is this


EntryList.RecordSource = "SELECT * FROM ClockT WHERE WorkDay" = Forms!ClockF!WorkDay And JobNumber = " Forms!ClockF!JobNumberBox ORDER BY StartTime"

******END CODE****

I can not get this to work.

Reply from Richard Rost:

Try this:

EntryList.RecordSource = "SELECT * FROM ClockT WHERE WorkDay=" & Forms!ClockF!WorkDay & " AND JobNumber=" & Forms!ClockF!JobNumberBox & " ORDER BY StartTime"

Now, if WorkDay is a DATE value, you need # signs:

EntryList.RecordSource = "SELECT * FROM ClockT WHERE WorkDay=#" & Forms!ClockF!WorkDay & "# AND JobNumber=" & Forms!ClockF!JobNumberBox & " ORDER BY StartTime"

If it's a TEXT value, you need more quotes:

EntryList.RecordSource = "SELECT * FROM ClockT WHERE WorkDay='" & Forms!ClockF!WorkDay & "' AND JobNumber=" & Forms!ClockF!JobNumberBox & " ORDER BY StartTime"

Review my lesson on STRING CONCATENATION. If you want to add a form value to a LITERAL string, it looks like this:

X = "Hello " & FieldName

The & character just adds (concatenates) two strings together - whether they're literal string values inside of quotes, or a field value.

The _ is just a line continuation character. You don't HAVE to use it, it just makes your code more readable (without having to scroll to the left):

X = "This is a long line. I can use the line " & _
     "continuation character to break it up."

Hope this helps.
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