Exemplo do Visual Basic de Modelagem de Dados

' This application makes use of Microsoft Hierarchical FlexGrid  
' Control, which is named as MSHFLexGrid.  
Const SHAPER = "MSDataShape"  
Const DP = "SQLOLEDB"  
Const DS = "MySQLServer"  
Const DB = "Northwind"  
  
Private Sub Form_Load()  
    FirstExample  
End Sub  
  
Private Sub Form_Resize()  
    MSHFlexGrid.Top = 0  
    MSHFlexGrid.Left = 0  
    MSHFlexGrid.Width = Me.ScaleWidth  
    MSHFlexGrid.Height = Me.ScaleHeight  
End Sub  
  
Private Sub FirstExample()  
    Dim con As ADODB.Connection  
    Dim rst As ADODB.Recordset  
    Dim sCmd As String  
  
    Set con = New ADODB.Connection  
    Set rst = New ADODB.Recordset  
  
    con.ConnectionString = ConnectionString(SHAPER, DP, DS, DB)  
    con.Open  
  
    sCmd = "SHAPE {SELECT CustomerID, ContactName FROM Customers} " _  
        & "APPEND ({SELECT OrderID, OrderDate, CustomerID FROM Orders} " _  
        & "AS chapOrders " _  
        & "RELATE customerID TO customerID)"  
  
    rst.Open sCmd, con, adOpenStatic, 2  
    Set MSHFlexGrid.Recordset = rst  
  
    rst.Close  
    Set rst = Nothing  
  
    con.Close  
    Set con = Nothing  
  
End Sub  
  
Private Function ConnectionString(pr As String, _  
                                  dpr As String, _  
                                  dsr As String, _  
                                  dbs As String)  
    Dim s As String  
    If pr = "" Then  
        s = "Provider=" & dpr & _  
          ";Data Source=" & dsr & _  
          ";Initial Catalog=" & dbs & _  
          ";Integrated Security=SSPI;"  
    Else  
        s = "Provider=" & pr & _  
          ";Data Provider=" & dpr & _  
          ";Data Source=" & dsr & _  
          ";Initial Catalog=" & dbs & _  
          ";Integrated Security=SSPI;"  
    End If  
    ConnectionString = s  
End Function  
  

Experimente!

1. Criar um projeto de aplicativo EXE do Visual Basic Standard

2. Selecione Componentes no menu Projeto no Visual Studio

3. Selecione "Microsoft Hierarchical FlexGrid Control 6.0 (OLEDB)" na janela de componentes e clique em Salvar.

4. Clique duas vezes no Controle FlexGrid do painel Caixa de Ferramentas na área de trabalho do Visual Basic. Altere o nome dessa instância para MSHFLEXGRID.

5. Copie o código anterior e cole-o na página Code para substituir qualquer código existente.

6. Selecione Iniciar no menu Executar para executar o aplicativo.