If txtFilepath.Text = "" Then
                    cmd.Parameters.AddWithValue("@_Firma_Immagine", DBNull.Value)
                    cmd.Parameters.AddWithValue("@_Firma", DBNull.Value)
                Else
                    Dim fs As FileStream = New FileStream(txtFilepath.Text, FileMode.Open, FileAccess.Read)
                    Dim dati() As Byte = New Byte((fs.Length) - 1) {}
                    fs.Read(dati, 0, CType(fs.Length, Integer))
                    fs.Close()
                    Dim par1 As MySqlParameter = cmd.Parameters.Add("@_Firma_Immagine", MySqlDbType.Blob)
                    par1.Value = dati
                    par1 = cmd.Parameters.Add("@_Firma", MySqlDbType.LongText)
                    par1.Value = Path.GetFileName(txtFilepath.Text)
                End If