AJH.CMS.WEB.UI.Admin.ManageTax_UC.btnUpdate_Click C# (CSharp) Метод

        void btnUpdate_Click(object sender, EventArgs e)
        {
            if (ViewState[CMSViewStateManager.TaxID] != null)
            {
                try
                {
                    Tax Tax =
                        TaxManager.GetTax(Convert.ToInt32(ViewState[CMSViewStateManager.TaxID]), CMSContext.PortalID);

                    if (Tax != null)
                    {
                        Tax.Rate = Convert.ToDecimal(txtRate.Text);
                        Tax.IsEnabled = cbIsEnabled.Checked;
                        TaxManager.Update(Tax);
                        FillTaxs(-1);
                        upnlTax.Update();
                    }
                }
                catch (Exception ex)
                {
                    dvProblems.Visible = true;
                    dvProblems.InnerText = ex.ToString();
                    upnlTax.Update();
                }

            }
        }