// // Licensed to the Apache Software Foundation (ASF) under one or more // contributor license agreements. See the NOTICE file distributed with // this work for additional information regarding copyright ownership. // The ASF licenses this file to You under the Apache License, Version 2.0 // (the "License"); you may not use this file except in compliance with // the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // // .NET StockTrader Sample WCF Application for Benchmarking, Performance Analysis and Design Considerations for Service-Oriented Applications // Note that for quotes we use in-page script to generate our repeating data for the HTML (based on the List // returned of QuoteDataUI elements); vs. using databound Repeater controls as we do in the AccountOrders // (control), Portfolio (page), and MarketSummary (control). // The choice of display method is up to the architect; Repeaters and GridViews have many features you do not // get with in-page script; there is however a performance tradeoff (~20% for this page); we opted to use // in-page script vs. Repeaters/Gridviews here becuase the Quotes page is likely to be the most-often called // page in the application; we did the same for the OrdersAltert control that is embedded in every authenticaterd // display page. We utilize Repeaters elsehwhere. Note Trade 6.1 uses in-page JSP script in all pages. using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Security; using Trade.StockTraderWebApplicationSettings; using Trade.StockTraderWebApplicationModelClasses; using Trade.StockTraderWebApplicationServiceClient; using Trade.Utility; namespace Trade.Web { /// /// Gets/displays a list of quotes by querying Business Services. /// public partial class Quotes : System.Web.UI.Page { public List quoteList; protected void Page_Load(object sender, EventArgs e) { BSLClient businessServicesClient = new BSLClient(); string requestedSymbols = Input.InputText(Request["symbols"], StockTraderUtility.SYMBOLSTRING_MAXLENGTH); if (string.IsNullOrEmpty(requestedSymbols) && PreviousPage != null) { // Get the data posted from another page's PostBackUrl method TextBox symbolsText = RecursivelyFindControl(PreviousPage.Controls, "symbols") as TextBox; if (symbolsText != null) requestedSymbols = symbolsText.Text; } if (string.IsNullOrEmpty(requestedSymbols)) { // if its still null use the default requestedSymbols = this.symbols.Text; } quoteList = businessServicesClient.getQuotes(requestedSymbols); } public Control RecursivelyFindControl(ControlCollection controls, string name) { foreach(Control c in controls) { if (c.ID == name) return c; Control resultFromChildren = RecursivelyFindControl(c.Controls, name); if (resultFromChildren != null) return resultFromChildren; } return null; } } }