PKHeX.Form1.updateIVs C# (CSharp) Method

        private void updateIVs(object sender, EventArgs e)
        {
            if (changingFields) return;
            if (sender != null)
                if (Util.ToInt32((sender as MaskedTextBox).Text) > 31)
                    (sender as MaskedTextBox).Text = "31";

            int[] ivs =
            { 
                Util.ToInt32(TB_HPIV.Text), Util.ToInt32(TB_ATKIV.Text), Util.ToInt32(TB_DEFIV.Text), 
                Util.ToInt32(TB_SPEIV.Text), Util.ToInt32(TB_SPAIV.Text), Util.ToInt32(TB_SPDIV.Text)
            };

            changingFields = true;
            CB_HPType.SelectedValue = PKX.getHPType(ivs);
            changingFields = false;

            int ivtotal = ivs.Sum();
            TB_IVTotal.Text = ivtotal.ToString();

            // Potential Reading
            if (!unicode)
            {
                if (ivtotal <= 90)
                    L_Potential.Text = "★☆☆☆";
                else if (ivtotal <= 120)
                    L_Potential.Text = "★★☆☆";
                else if (ivtotal <= 150)
                    L_Potential.Text = "★★★☆";
                else
                    L_Potential.Text = "★★★★";
            }
            else
            {
                if (ivtotal <= 90)
                    L_Potential.Text = "+";
                else if (ivtotal <= 120)
                    L_Potential.Text = "++";
                else if (ivtotal <= 150)
                    L_Potential.Text = "+++";
                else
                    L_Potential.Text = "++++";
            }

            // Characteristic with EC%6
            int pm6 = (int)(Util.getHEXval(TB_EC) % 6); // EC MOD 6
            int maxIV = ivs.Max();
            int pm6stat = 0;

            for (int i = 0; i < 6; i++)
            {
                pm6stat = (pm6 + i) % 6;
                if (ivs[pm6stat] == maxIV)
                    break; // P%6 is this stat
            }

            L_Characteristic.Text = characteristics[pm6stat * 5 + maxIV % 5];
            updateStats();
        }
        private void updateEVs(object sender, EventArgs e)