Forex_Strategy_Builder.Instrument_Editor.TbxPropPriceIn_TextChanged C# (CSharp) Method

        void TbxPropPriceIn_TextChanged(object sender, EventArgs e)
        {
            Regex regexPriceIn = new Regex(@"^[A-Z]{3}$");

            if (regexPriceIn.IsMatch(tbxPropPriceIn.Text))
            {
                tbxPropPriceIn.ForeColor = colorText;

                SetAcountExchangeRate();
            }
            else
            {
                tbxPropPriceIn.ForeColor = Color.Red;
            }

            return;
        }