protected void Page_Load(object sender, EventArgs e)
    {       
        string query ="Select tipologia, id, immagine, attacco from prodotti where inserto =" Request.QueryString["inserto"];
        SqlConnection  conn = new SqlConnection();  
        conn.ConnectionString = "ConnectionStrings:KSV_provaConnectionString4";        
        SqlCommand sqlcm = new SqlCommand(query , conn);      
        DataSet ds = new DataSet();     

        conn.Open();

        SqlDataAdapter da = new SqlDataAdapter();       
        da.SelectCommand = sqlcm;       
        da.Fill(ds, "prova"); 
        conn.Close();
        GridView1.DataSource = ds;
        GridView1.DataBind();
               
    }