using Access only, no VB or other front ends used in this app.

i would like to know how to add a new item to a listbox with two columns at the moment my code looks like this:

Code:
    If txtDate = "" Then
        MsgBox "You must enter a Date for the Operation First, and Click Add.", vbOKOnly, "Error - Missing Date"
        Exit Sub
    Else
        If txtTime = "" Then
            MsgBox "You must enter a Time for the Operation First, and Click Add.", vbOKOnly, "Error - Missing Time"
            Exit Sub
        Else
            lstOperationSummary.AddItem ("Date: " & txtDate)
            lstOperationSummary.AddItem ("Time: " & txtTime)
        End If
    End If
however this only writes the "("Date: " & txtDate)" to one column, i wish to have them split so "Date:" goes in the first and txtDate goes in the second.

thanks