Cellset 範例 (VB)

此 Visual Basic 專案示範使用 ADO MD 存取 Cube 資料的基本概念。 它會顯示資料行和資料列標頭的成員標題,然後在資料格集內顯示特定儲存格的格式值。

Private Sub cmdCellSettoDebugWindow_Click()  
Dim cat As New ADOMD.Catalog  
Dim cst As New ADOMD.Cellset  
Dim i As Integer  
Dim j As Integer  
Dim strServer As String  
Dim strSource As String  
Dim strColumnHeader As String  
Dim strRowText As String  
  
On Error GoTo Error_cmdCellSettoDebugWindow_Click  
Screen.MousePointer = vbHourglass  
'*-----------------------------------------------------------------------  
'* Set Server to Local Host  
'*-----------------------------------------------------------------------  
    strServer = "LOCALHOST"  
  
'*-----------------------------------------------------------------------  
'* Set MDX query string Source  
'*-----------------------------------------------------------------------  
    strSource = strSource & "SELECT "  
    strSource = strSource & "{[Measures].members} ON COLUMNS,"  
    strSource = strSource & _  
        "NON EMPTY [Store].[Store City].members ON ROWS"  
    strSource = strSource & " FROM Sales"  
  
'*-----------------------------------------------------------------------  
'* Set Active Connection  
'*-----------------------------------------------------------------------  
        cat.ActiveConnection = "Data Source=" & strServer & _  
            ";Provider=msolap;"  
  
'*-----------------------------------------------------------------------  
'* Set Cell Set source to MDX query string  
'*-----------------------------------------------------------------------  
        cst.Source = strSource  
  
'*-----------------------------------------------------------------------  
'* Set Cell Sets active connection to current connection  
'*-----------------------------------------------------------------------  
    Set cst.ActiveConnection = cat.ActiveConnection  
  
'*-----------------------------------------------------------------------  
'* Open Cell Set  
'*-----------------------------------------------------------------------  
    cst.Open  
  
'*-----------------------------------------------------------------------  
'* Allow space for Row Header Text  
'*-----------------------------------------------------------------------  
strColumnHeader = vbTab & vbTab & vbTab & vbTab & vbTab & vbTab  
  
'*-----------------------------------------------------------------------  
'* Loop through Column Headers  
'*-----------------------------------------------------------------------  
       For i = 0 To cst.Axes(0).Positions.Count - 1  
            strColumnHeader = strColumnHeader & _  
                cst.Axes(0).Positions(i).Members(0).Caption & vbTab & _  
                    vbTab & vbTab & vbTab  
       Next  
       Debug.Print vbTab & strColumnHeader & vbCrLf  
  
'*-----------------------------------------------------------------------  
'* Loop through Row Headers and Provide data for each row  
'*-----------------------------------------------------------------------  
        strRowText = ""  
        For j = 0 To cst.Axes(1).Positions.Count - 1  
            strRowText = strRowText & _  
                cst.Axes(1).Positions(j).Members(0).Caption & vbTab & _  
                    vbTab & vbTab & vbTab  
            For k = 0 To cst.Axes(0).Positions.Count - 1  
                strRowText = strRowText & cst(k, j).FormattedValue & _  
                    vbTab & vbTab & vbTab & vbTab  
            Next  
            Debug.Print strRowText & vbCrLf  
            strRowText = ""  
        Next  
  
    Screen.MousePointer = vbDefault  
Exit Sub  
  
Error_cmdCellSettoDebugWindow_Click:  
   Beep  
   Screen.MousePointer = vbDefault  
   MsgBox "The Following Error has occurred:" & vbCrLf & _  
      Err.Description, vbCritical, " Error!"  
   Exit Sub  
End Sub