protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { if (Request.QueryString["ProductID"] != null) { string productId = Request.QueryString["ProductID"]; if (!String.IsNullOrEmpty(productId)) { var product = businessHelper.GetProduct(int.Parse(productId)); txtName.Text = product.Name; txtDesc.Text = product.Description; txtSKU.Text = product.SKU; txtVendor.Text = product.Vendor; hdnProductId.Value = product.ProductId.ToString(); } } } grdProducts.DataSource = businessHelper.GetProducts(); grdProducts.DataBind(); }