private void ButtonsClick(object sender, EventArgs e)

        {

            //MessageBox.Show("SWAG");

            ((Button)sender).Enabled = false;

​

            Button button = sender as Button;

            if (button != null)

            {

                switch ((int)button.Tag)

                {

                    case 0:

                        textBoxes[0].Text = "0";

                        break;

                    case 1:

                        textBoxes[1].Text = "1";

                        break;

                    case 2:

                        textBoxes[2].Text = "2";

                        break;

                    case 3:

                        textBoxes[3].Text = "3";

                        break;

                    case 4:

                        textBoxes[4].Text = "4";

                        break;

                    case 5:

                        textBoxes[5].Text = "5";

                        break;

                    case 6:

                        textBoxes[6].Text = "6";

                        break;

                    case 7:

                        textBoxes[7].Text = "7";

                        break;

                    case 8:

                        textBoxes[8].Text = "8";

                        break;

                    case 9:

                        textBoxes[9].Text = "9";

                        break;

​

                }

            }

​

        }