示例#1
0
        protected void SearchProductB_OnClick(object sender, EventArgs e)
        {
            string searchValue = serchedValue.Text;//get search value

            if (searchValue != "")
            {
                //set values and take care of unexpected value or null error
                int orderBy, shopId;
                try
                {
                    orderBy = int.Parse(productOrder.SelectedValue);
                }
                catch
                {
                    orderBy = 4;
                }
                try
                {
                    shopId = ((BlShopManager)Session["user"]).ShopId;
                }
                catch
                {
                    shopId = -1;
                }
                try
                {
                    string ch           = SearchBy.Items[SearchBy.SelectedIndex].ToString();//get by what to search
                    bool   IsSearchName = (ch == "Product name");
                    if (!IsSearchName && !double.TryParse(searchValue, out double result))
                    {
                        //if searching by price and search val is not a value error msg
                        MSG.Text = "please a valid price '" + searchValue + "' is not a number";
                    }
                    else
                    {
                        //get the list by the parameters
                        List <BLProduct> products = BLProduct.Search(searchValue, shopId, IsSearchName, orderBy);
                        UpdateData(products); //set data source

                        MSG.Text = "";        //set text to no error
                    }
                }
                catch (Exception exception)
                {
                    MSG.Text = "please select by what you want to search " + exception.Message;// error massage
                }
            }
            else
            {
                MSG.Text = "please type the value you want to search";// error massage
            }
        }