Compared to classic ASP, ASP.Net is more potent. But in order to come up with high performance, reliable and robust applications, one must be well-versed with the proper means to leverage the power of this programming framework. Here, we bring to you some of the best practices that can be followed to make the most of ASP.Net.
1. Research and plan prior to development: Indulge yourself in some amount of research and find out how .Net can prove beneficial for you. There are a number of solutions offered by .Net at each level of app development. You must understand the positive and negative impacts of each approach that this development environment supports. Visual Studio offers a total development package coming up with a number of options that help in the implementation of the same logic. It is essential to carefully explore each option and determine the most-suited solution for the concerned task. Using layering, the application logic can be partitioned into data access, business and presentation layers. This not only helps in the creation of maintainable code, but also facilitates monitoring and optimization of each layer’s performance separately. Scalability and maintenance can be improved by reduction in the number of codes within the code-behind files.
2.String concatenation: Your application can record decreased performance if the string concatenation aspect is handled properly. String concatenation is done in two ways. First, you can consider addition of a new string to an already existing string. However, this operation can be quite expensive and time consuming. The second option comprises the use of StringBuilder Class which is a more efficient way for concatenation of strings.
3. Do away with round trips across the server: Do not go for unnecessary round trips across the web server. To avoid doing so, consider implementing Ajax UI in order to refrain from full page refresh and update only that segment of the page which requires change. For eliminating round trips you can also consider using client side scripts for validating client site, and this cuts down the number of round trips needed for processing user’s request.
4. Save viewstate only if the same is necessary: ViewState is mainly used by Server controls for retaining state solely on pages which post data across themselves. A concealed variable is used for transferring information to the client and reading back the same. ViewState becomes a redundant overhead in case of pages which do not require it. With the growth in size, the ViewState starts affecting the functional efficiency of garbage collection. Viewstate is not required when your page is not posting information over itself or you are not dealing with server control events or with each page refresh, you are repopulating controls.
5. Make a careful use of session variables: Session variables should not be loaded with an excessive amount of data. It should also be ensured that the session time out is sensible. This can utilize a considerable portion of server memory. Remember that data that is stored within the session variables is capable of existing for a long time even after the browser is closed by the user. A huge amount of session variables may affect the server. It is advisable to make the session state disabled, in case the session variables are not being utilized for a specific page or application.
6. Use Server.Transfer: The Server.Transfer method is a good option for redirecting between applications. If you use this method in a page where the Server.Transfer syntax exists, refrain from going for redundant client-side redirection. It is better to use Server.Transfer in place of Response.Redirect.
7. Make an appropriate use of server controls and keep away from using intensely nested controls: In spite of the stateless aspect of the HTTP protocol, server controls offer a high quality programming model capable of utilizing Viewstate for administering states within page requests. However, as server controls call for some fixed processing for establishing controls and child controls, the process becomes comparatively more expensive than static text or HTML controls. Hence it is best to use an inline representation for the user interface in place of server controls, when you do not require rich interaction.
The cost can also rise when you are using deeply nested hierarchies for creation of server control and child controls. You can avoid such nested hierarchies by going for separate designs that make use of inline controls or by utilizing a server control hierarchy that is flatter.
8. Select a suitable data viewing control for the solution: Significant tradeoffs can be obtained between performance and convenience, depending on the manner in which you wish to exhibit data within a Web Forms page. Always explore the advantages and disadvantages of the controls prior to using the same in your application. For instance, from amongst Repeater, Datalist and Datagrid, you can go for any one of the three controls for displaying data. But, at first you must carefully determine which control will prove the most beneficial for you.
The above-mentioned practices will indeed ensure that you develop high performance applications using ASP.Net. Apart from these, you can also try some other best practices such as leveraging a DataReader for efficient and fast data binding, optimization of code, pre-compilation of pages, using indexes and stored procedures, and so on. This would help you leverage the benefits of asp.net web development.
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Best Practices to applications using ASP.Net