birt code 128

birt code 128

birt code 128

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to Express), but all of these tools have been carefully designed to minimize the impact on deployment. In this chapter, you looked at the deployment environment, using IIS and SQL Server on Windows 2003, and what it takes to move a multitier application from the development environment to the deployment one. The scenario we explored in this chapter took a hands-on approach, covering most of what you ll likely encounter in a real-world deployment. You followed a data-down deployment process, first configuring the database on the server (i.e., installing AdventureWorks), and then adding the required credentials for your application to sign into the database. If this isn t deployed on your server already, go back to 4 and follow the steps there. You then had your development-based service sign into this database to ensure that it worked. Once this was achieved, you deployed your service to the server. Once that was ready, you changed your client to point to this service. Finally, you deployed your client web application to the server and made it available to all users who can access the web server. This chapter showed the power and flexibility of IIS and Windows as a web server environment and how easy it is to build your applications and make them ready for public consumption. Going beyond what you ve learned in this chapter, you can look into advanced server configuration, creating application pools and health monitoring, tweaking the compilation models, using FTP and security, and much more. Many excellent resources are available on these topics, both in book form (an excellent example being Internet Information Services 6.0 Resource Kit, from Microsoft Press) and as Internet resources, including, for example, MSDN (http://msdn2.microsoft.com) and TechNet (http://technet.microsoft.com).

In the preceding code, we use the FillControls() helper method to display details of the current employee. This method is shown in Listing 13-17. Listing 13-17. Displaying the Current Employee s Details private void FillControls() { if (comboBox1.SelectedIndex == -1) { comboBox1.SelectedIndex = 0; } string employeeid = comboBox1.SelectedItem.ToString(); var employees = from item in doc.Elements() where item.Attribute("employeeid").Value == employeeid select item; foreach (var employee in employees) { textBox1.Text = employee.Element("firstname").Value; textBox2.Text = employee.Element("lastname").Value; textBox3.Text = employee.Element("homephone").Value; textBox4.Text = employee.Element("notes").Value; } label6.Text = "Employee " + (comboBox1.SelectedIndex + 1) + " of " + comboBox1.Items.Count; }

3

indows Communication Foundation (WCF), formerly known as Indigo, is the nextgeneration unified framework for building applications that are secure and reliable, supporting transactions and providing standards-based interoperability. WCF as a technology is primarily intended for connected applications, be they connected across the Internet, inside the corporate firewall, or even on your machine. At the heart of this imperative is interoperability and integration. When systems work as decoupled, connected systems, the interfaces and interaction between them needs to be secure bytes flying across the wire can be sniffed and compromised by malicious users. They need to be reliable communications breakdowns shouldn t cause the application to break, but instead should be handled gracefully. They also need to be transacted, with batches of communications being managed by the framework so that each node in the communication network has the best, freshest data available to it. When these three goals are met, then the desirable goal of dynamic, decoupled, connected applications becomes possible. Prior to .NET 3.0 and WCF, there were many technologies that would help the developer to achieve these goals. Messaging systems could provide reliable message delivery, database systems could provide support for transactions and standards for security, and security products could secure your messaging and your web services. But a plethora of APIs and skills were needed to achieve these goals, and in many cases, expensive third parties would have to be involved, making the overall cost-benefit ratio suffer. With WCF, the development APIs for services, Remoting, messaging, and more have been taken under one hood and the runtime environment for them is the freely available .NET Framework 3.0. Thus, the possibilities of meeting the goals and being productive are greater than ever before.

When the start() method of the containing Thread object is called, the following run() method will be started on the background thread of execution: