Net windows forms in a nutshell pdf download

In particular, features such as reflection dramatically reduce the amount of code a developer must write in order to turn business logic into a reusable component.

By creating a common set of APIs across all programming languages, the common language runtime enables cross-language inheritance, error handling, and debugging. NET builds on the programming classes of the. On the server, the controls expose an object- oriented programming model that brings the richness of object-oriented programming to the Web developer.

NET also provides infrastructure services, such as session state management and process recycling that further reduce the amount of code a developer must write and increase application reliability. In addition, ASP. NET uses these same concepts to enable developers to deliver software as a service. Debugging Visual Studio. Attaching to a running program works the same way whether the program is running on a host machine or a remote machine.

The program does not need to be launched in the Visual Studio. NET Web Service projects. The Threads window can be used to view the threads that are running and to switch context. NET Web applications has been significantly improved. In most cases you can simply choose Start from the Debug menu and the debugger will automatically attach to the ASP.

NET worker process is running on a different server. Security configuration has been made easier by the addition of a debugger users group. NET application. NET Framework classes are available for use both in debugging and in instrumenting your code. Visual Basic. Web Forms allow you to easily and quickly create the browser-based interface for ASP. NET Web applications. New in Data: ADO. You can access data directly in the data source or create an in-memory cache — a dataset — for working with disconnected data.

Windows Forms and Controls: You can use Windows Forms and controls to create the presentation layer of a distributed application. Windows Forms provides a clear, object-oriented, extensible set of classes that enable you to develop rich Windows applications. NET Web applications and controls.

Project templates set necessary references for you, import namespaces, and add default items to your projects. Components and Component Authoring: You can use nonvisual components and associated features to incorporate resources such as message queues, event logs, and performance counters into your applications.

This version also offers RAD support for component creation via the Component Designer and framework classes that help you create controls and components. New in Debugging: You can now debug projects that are part of the same solution but written in different languages, perform remote debugging, and implement trace functionality throughout your code to retrieve finely tuned output. Extensibility and Automation: Visual Studio.

NET includes a programmable object model that provides access to the underlying components and events of the integrated development environment IDE. This model allows you to extend the functionality of the IDE, automate repetitive tasks, and integrate the IDE with other applications. Net Most Visual Basic and Visual C applications revolve around reading and updating information in databases. To allow data integration in distributed, scalable applications, Visual Studio.

Data Access with ADO. NET, you will have different requirements for working with data. In other cases, you might need to devise a way to share information with another company. No matter what you do with data, there are certain fundamental concepts that you should understand about the data approach in ADO.

You might never need to know some of the details of data handling — for example, you might never need to directly edit an XML file containing data — but it is very useful to understand the data architecture in ADO.

NET, what the major data components are, and how the pieces fit together. New in ADO. Net ADO. In most cases, databases can maintain only a small number of concurrent connections. The overhead of maintaining these connections detracts from overall application performance.

An application that does not scale up well might perform acceptably with four users but will likely not do so with hundreds. NET Web applications in particular need to be easily scalable, because traffic to a Web site can go up by orders of magnitude in a very short period.

NET Web applications, the components are inherently disconnected from each other. The browser requests a page from the server; when the server has finished processing and sending the page, it has no further connection with the browser until the next request.

If two components need to share the same data, either have to be connected, or a way must be devised for the components to pass data back and forth. For all these reasons, data access with ADO. NET is designed around an architecture that uses connections sparingly. Applications are connected to the database only long enough to fetch or update the data. Because the database is not holding on to connections that are largely idle, it can service many more users. Benefits of ADO. Because XML is the format for transmitting datasets across the network, any component that can read the XML format can process data.

In fact, the receiving component need not be an ADO. NET component at all: The transmitting component can simply transmit the dataset to its destination without regard to how the receiving component is implemented. The destination component might be a Visual Studio application or any other application implemented with any tool whatsoever. The only requirement is that the receiving component be able to read XML. As an industry standard, XML was designed with exactly this kind of interoperability in mind.

Maintainability In the life of a deployed system, modest changes are possible, but substantial, architectural changes are rarely attempted because they are so difficult. That is unfortunate, because in a natural course of events, such substantial changes can become necessary. For example, as a deployed application becomes popular with users, the increased performance load might require architectural changes.

As the performance load on a deployed application server grows, system resources can become scarce and response time or throughput can suffer. Faced with this problem, software architects can choose to divide the server's business-logic processing and user-interface processing onto separate tiers on separate machines.

In effect, the application server tier is replaced with two tiers, alleviating the shortage of system resources. Programmability ADO. NET data components in Visual Studio encapsulate data access functionality in various ways that help you program more quickly and with fewer mistakes. For example, data commands abstract the task of building and executing SQL statements or stored procedures. Performance For disconnected applications, ADO. When using COM marshalling to transmit a disconnected recordset among tiers, a significant processing cost can result from converting the values in the recordset to data types recognized by COM.

In ADO. NET, such data-type conversion is not necessary. Scalability Because the Web can vastly increase the demands on your data, scalability has become critical. Internet applications have a limitless supply of potential users.

Although an application might serve a dozen users well, it might not serve hundreds —or hundreds of thousands — equally well. An application that consumes resources such as database locks and database connections will not serve high numbers of users well, because the user demand for those limited resources will eventually exceed their supply. Comparison of ADO. NET, it is the dataset. There are important differences between them. Number of Tables A recordset looks like a single table.

If a recordset is to contain data from multiple database tables, it must use a JOIN query, which assembles the data from the various database tables into a single result table.

In contrast, a dataset is a collection of one or more tables. The tables within a dataset are called data tables; specifically, they are DataTable objects. If a dataset contains data from multiple database tables, it will typically contain multiple DataTable objects. That is, each DataTable object typically corresponds to a single database table or view.

In this way, a dataset can mimic the structure of the underlying database. Because there are numerous threats on the internet, LastPass applies a range of techniques to protect your private information in a secure location that you can trust. Restoro is the most effective malware repair and threats removal software for a Windows 10 PC.

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With Restoro, the performance, stability, and security of your PC will be restored and enhanced. Try it now! Free Download CCleaner. Your PC will get filled with various junk files over time, and this is why CCleaner is one of the best apps to download on the computer. This software will remove unwanted files from your PC and speed it up. When the PC starts, CCleaner will operate in the background and monitor the computer without user intervention.

Using this effective cleaning program, you can eliminate all unnecessary temporary files and keep your PC healthy. Free Download HWMonitor. It is backward compatible with the vast majority of common sensor chips and modern CPUs on the market. This application, on the other hand, is simply for monitoring PC data and cannot solve any problems, such as if a component is overheating.

Screen-saver apps were created to assist avoid these effects by altering the graphics on the screen during times of inactivity. Lake Tree 3D Screensaver. Leave your work at the office and prepare to leave the dusty, loud metropolis. On a beautiful summer day, Lake Tree 3D Screensaver will allow you to experience the wind blowing and the sun beaming on the sparkling lake surface.

Sunny Patio 3D Screensaver. Is there anything better than a trip to the beach in the summer? A journey that will transport you back in time to the ancient and small alleys that will bring you to the patio right by the seaside where you will be able to appreciate the breathtaking sea view in front of your eyes.

VLC is another must-have software for Windows 10, especially if you play multimedia files frequently. Image viewer. Windows 10 comes with a Photos app that works as a default image viewer. Even though the Photos app is decent, some users prefer applications that provide more features.

In addition, some third-party applications are faster than the Photos apps, so be sure to try them out. If you edit images frequently, then you should know that Paint. NET is one of the must-have software for Windows With its friendly tabbed UI, you can easily navigate it and smoothly draw or edit anything you want. Email client might not be a must-have software for Windows 10, but many users prefer having a dedicated email client for their email needs.

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