从 access 中的多值组合框获取值 vba

Question

I have a form that I'm using to gather information that will be inserted into a database table in Access 2016. My form has a multi-value combo box (called cmbContacts) that pulls values from a Contacts table (ID and Name). A user is able to select 0 or more contacts from the combo box. When a user clicks the submit button, the button_click event triggers VBA code to format the information and insert it into the table.

What I need to do is get the IDs of each selected contact from the combo box.

Here's what I have so far:

If Me.cmbContacts.ItemsSelected.Count > 0 Then 'Only run code if there are contacts selected'
    'Select the most recently added entry (added right before this if statement)'
    Dim rs As DAO.Recordset, Max As Integer
    SQL = "SELECT MAX(ID) FROM Breweries"
    Set rs = CurrentDb.OpenRecordset(SQL)
    Max = rs.Fields(0)
    'Insert each selected Contact ID into Breweries.[Contact Names].Value'
    Dim itm As Variant
    For Each itm In Me.cmbContacts.ItemsSelected
        SQL = "INSERT INTO Breweries ([Contact Names].[Value]) VALUES (" + itm + ") WHERE ID=" + Max
        CurrentDb.Execute (SQL)
    Next itm
End If

Some issues:

• Me.cmbContacts.ItemsSelected.Count always equals 0, regardless of how many items are selected in the Combo Box
• Because cmbContacts.ItemsSelected doesn't contain the selected items, the for loop doesn't run. I'm not sure why it's not registering the selected items

Answer 1

If a combobox has more than 1 item selected/populated, then you can use Ubound() to find out how many.

IF UBound(Me.cmbContacts.OldValue) > 0
    For i = LBound(Me.cmbContacts.OldValue) To UBound(Me.cmbContacts.OldValue)
       SQL = "INSERT INTO Breweries ([Contact Names].[Value]) VALUES (" + Me.cmbContacts.OldValue(i) + ") WHERE ID=" + Max
        CurrentDb.Execute (SQL)
    Next i
END IF

Bear in mind this will error with a Type Mismatch if only one, or no values are selected and you will have to handle this somehow.

Hope this helps..

Answer 2

After a lot of searching on MVF's and VBA all I found was working with parent/child recordsource. In my case the user has selected the values but they are not saved to the table yet. I just needed a way to loop through the control and get all the values selected. Couldn't find this anywhere - in case it's helpful to someone.

 For Each Val in me.MultiValueComboBoxName.Value
    'Do Action
 Next