LayoutParams lp = new LayoutParams(LayoutParams.MatchParent, 150);
                lp.Gravity = GravityFlags.Left;
                lp.LeftMargin = 250;


                LayoutParams lp2 = new LayoutParams(130, 130);
                lp2.Gravity = GravityFlags.Left ;


                LayoutParams lp3 = new LayoutParams(LayoutParams.WrapContent, LayoutParams.WrapContent);
                lp3.Gravity = GravityFlags.Center ;
                lp3.LeftMargin = 12;


                //List<string> lista = dados2();
                //AbreConexao();
                line.RemoveAllViews();
                while (a != dt.Rows.Count)
                {
                    //realtivo layout
                    var relative = new RelativeLayout(this)
                    {
                        Id = int.Parse("10" + dt.Rows[a]["codigo"].ToString()),
                    };
                    relative.SetBackgroundResource(Resource.Drawable.backlinha);

                    //imagem do produto
                    Button myButton = new Button(this);
                    myButton.Gravity = GravityFlags.Left;
                    myButton.LayoutParameters = lp2;
                    //myButton.TranslationX = -52;
                    //myButton.TextAlignment = TextAlignment.Center;
                    //myButton.SetTextColor(Android.Graphics.Color.White);
                    //myButton.SetTextSize(Android.Util.ComplexUnitType.Dip,24);
                    //myButton.SetBackgroundResource(2130837599);
                    if (dt.Rows[a]["img"].ToString() != "")
                    {
                        byte[] data0 = (byte[])dt.Rows[a]["img"];
                        MemoryStream ms0 = new MemoryStream(data0);
                        myButton.SetBackgroundDrawable(Android.Graphics.Drawables.Drawable.CreateFromStream(ms0,"categoria"));
                    }
                    //myButton.Text = dt.Rows[a]["nome"].ToString();
                    myButton.Id = int.Parse(dt.Rows[a]["codigo"].ToString());
                    myButton.Click += myButon_cliki;
                    //myButton.id


                    //texto com o nome do produto
                    TextView txtprod = new TextView(this)
                    {
                        Right = int.Parse(dt.Rows[a]["codigo"].ToString()),Gravity = GravityFlags.Center

                    };

                    txtprod.TextSize = 24f;
                    txtprod.SetTextColor(Android.Graphics.Color.Black);
                    //txtprod.LayoutParameters = lp3;

                    txtprod.Text = dt.Rows[a]["nome"].ToString();
                    relative.SetGravity(GravityFlags.Center);
                    relative.AddView(txtprod);
                    relative.AddView(myButton);
                    relative.LayoutParameters = lp;

                    line.AddView(relative);