Protected Sub cat_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim con As New System.Data.OleDb.OleDbConnection("Provider=SQLOLEDB;Data Source=GOMMOSA\SQLEXPRESS;Initial Catalog=MIO_SITO;User ID=sa;Password=saweb")
        con.Open()
       
        Dim com As New System.Data.OleDb.OleDbCommand()
        com.Connection = con
        com.CommandText = "select DENOMINAZIONE from CATEGORIE"
       
        Dim da As New System.Data.OleDb.OleDbDataAdapter()
        da.SelectCommand = com
        Dim ds As New DataSet1()
        da.Fill(ds, "CATEGORIE")
         

        Me.cat.DataSource = ds.Tables("CATEGORIE")
        Me.cat.DataValueField = "DENOMINAZIONE"
        
        con.Close()
    End Sub