如何使用字符串数组填充ComboBox？

Private Sub frmQuery3_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
    frmQuery2.Hide()
    Dim columns As String = frmQuery2.GetColumns
    cmbColumnSort.MaxDropDownItems = columns.Length
    For stepper = 0 To (columns.Length - 1)
        cmbColumnSort.Items.Add(columns(stepper))
    Next
End Sub
Private Sub frmQuery3_Load(sender As System.Obj