B4J Question TableView - set cell contents

Sub btnUpdate_Action
    If TableView1.SelectedRow = -1 Then Return
    SetCellValue(TableView1.SelectedRow, 1, txtValue.Text)
End Sub

Sub SetCellValue(RowIndex As Int, CellIndex As Int, Value As String)
    Log ("rowIndex= "&RowIndex&", CellIndex = "&CellIndex&", value = "&Value)
    GetLabel(RowIndex, CellIndex).Text = Value
End Sub

Sub GetLabel(RowIndex As Int, CellIndex As Int) As Label
    Dim row() As Object = TableView1.Items.Get(RowIndex)
    Log("Cell Index = "&row(CellIndex))
    Return row(CellIndex)
End Sub

'....other code above
    Dim value As String = lblAvailable.text
    setTripCellValue(tripIndex,3,value)
End Sub

'Change cell values in the 'tvTrip' tableView
Sub setTripCellValue(RowIndex As Int, CellIndex As Int, Value As String)
    Log("SelectdRow = "&RowIndex&", Cell Index = "&CellIndex&", value = "&Value)
    GetTripLabel(RowIndex,CellIndex).Text = Value
End Sub
'
Sub GetTripLabel(RowIndex As Int, CellIndex As Int) As Label
    Log("Row Index = "&RowIndex&", CellIndex = "&CellIndex)
    Dim row() As Object = tvTrip.Items.Get(RowIndex)
    Log("Cell Index = "&row(CellIndex))
    Return row(CellIndex)
End Sub