Unfortunately, something went wrong and your message or comments have not been submitted successfully. There's a fair chance things broke down because you tried to post something that looks like HTML.
If that's the case, try altering your message and remove anything that looks like an angled bracket. You can replace them with [ and ] for example so you can still make it look like HTML to some extend.
If, on the other hand, you were trying to spam this web site, I am pretty glad I caught you in the act and stopped you from doing so ;-. Details Doc ID:. This entry has been published in the category: Articles ASP. NET 1. Looking to hire? Are you looking to hire an experienced software developer or. NET consultant? Then get in touch with me through my company's web site at devierkoeden.
Do you like this article? Rate this item Like this article? Get in touch. Go Home Blogs All Blogs. All Articles. All FAQs. All Snippets. You can of course analyze the log files of your Web server but that information is usually difficult to read. The log files contain information for each and every request a visitor has made to your site, including resources like images, Flash movies and so on. This makes it near impossible to extract information about individual users.
It would be a lot easier if you could count the number of individual users that have visited you since you started your site. This example provides a peek at the usefulness of the events contained in the Global. Consequently, any methods placed in it are available through the application's code, hence the Global name.
NET applications. It provides numerous events to handle various application-wide tasks such as user authentication, application start up, and dealing with user sessions.
You should be familiar with this optional file to build robust ASP. NET-based applications. TechRepublic's free. NET, and Visual Studio. Automatically sign up today! He currently focuses on. NET and Web Development while trying to grasp the many facets of supporting such technologies in a productio Overview The Global. Editor's Picks.
The best programming languages to learn in You create ASP. NET Web pages. NET page. However, the user control does not have html, body, and form elements; and the file name extension must be. Open the Web site project to which you want to add user controls. Then The Handler. The code here could be used as a hit tracker that counts visitors and logs referrers. This could provide a more accurate visit count than server logs, because of browser and bot differences.
Handlers versus web pages. NET web forms inherit from the Page class. This provides them with many events and a detailed initialization and event model. You don't need that for dynamic images, XML, or binary files. Image Output. Is there any performance advantage or change to using ASHX files? These files are less complex and they do not involve as many events.
They are more streamlined and involve less code, and this is an advantage. As you can imagine, firing more than ten events each time a request is handled is a fair amount more expensive than only firing one event. Therefore, there will be some performance advantage to using ASHX files where possible.
IsReusable I do not know precisely what the IsReusable property does. Much of the supporting code is not in the ASHX file itself. But My reading indicates it can improve performance and decrease memory pressure by not repeatedly destroying the handler.
Choose handlers. Here I want to propose some guidelines about when to choose custom handlers and when to prefer ASPX web form pages. Handlers are better for binary data, and web forms are best for rapid development.
Control trees. In the ASP. NET Framework, web forms use a concept called control trees where the parts of web pages are stored in an object model. Use custom handlers when you do not require the custom control tree or the whole HTML web form framework.
0コメント