search access multi-valued filed - ms-access

Question

I'm having trouble getting Access to search on a multi-valued filed for a report. The multi-valued field is Group_List, and when trying to search a value in the multi-valued field and I keep getting the error that says cannot search in a where or having a clause. In the report, if I search for a value in the field I would only like those values to show up in the report.
Private Sub Command284_Click()
Dim reportsearch As String
Dim reportText As String
Dim strReport As String
If IsNull(Me.txtReport.Value) Then
strReport = "'SELECT * FROM NCECBVI'"
DoCmd.OpenReport "NCECBVI-Report", acPreview, , strReport
txtReport.Value = ""
Else
reportText = Me.txtReport.Value
reportsearch = "[Last Name] LIKE ""*" & reportText & "*"" OR [First Name] LIKE ""*" & reportText & "*"" OR Group_List LIKE "" * " & reportText & " * """
DoCmd.OpenReport "NCECBVI-Report", acPreview, , reportsearch
txtReport.Value = ""
End If
End Sub

Answer 1

Although I highly recommend to not use this kind of "dynamic query", there is a way to handle that kind of criteria for mutivalued fields.
Supposed that your Group_List is filled from a Groups table that as a GroupID and a GroupName column, you need to join your Groups table to the NCECBVI table (Connecting GroupID and Group_List.Value) and apply the criteria to the GroupName field. To show every record of the NCECBVI table only once, use DISTINCTROW. The assembled query would look something like this:
SELECT DISTINCTROW NCECBVI.*
FROM NCECBVI
INNER JOIN Groups ON Groups.GroupID = NCECBVI.Group_List.Value
WHERE Groups.GroupName LIKE "*SomeText*"
To deal with queries on multi-valued fields, I recommend this article.