You often need to update some portion of the code based on a user-triggered event or after a period of time. Usually, this isn't possible unless the whole page is posted back which, however, is not the goal. We'll take a look at a couple of solutions ASP .NET offers for such cases: UpdatePanel with
Memory layout for value types Variables in C# can be classified into two types - reference types and value types. If we know the characteristics of each of them it will be easy for us to use them and optimize the programs we write. Value types When a variable is created, memory is allocated in
XML files are a powerful tool to contain any structured data required for a .NET application or ASP .NET website to run. These files are based on the main principles of HTML and when you create an XML file, you should follow these few rules: The XML file must start with a declaration instructing how
Well designed websites do not consist of completely independent pages. They give the feeling of a continuously running application. Good design practice is to offer the site visitors similar interface and user experience no matter where they are on the website. The most common shared interface between different pages of the same website is about
Authentication and Authorization are two main security processes used in various applications. Although they are often confused by some users, they possess major differences between each other. Authentication Authentication is a process of confirming the user's identity in order to grant this user access to protected resources. Usually, the user needs to enter a username
A good practice in ASP .NET and in programming in general is to divide the code into reusable blocks. This is applicable to HTML code too. In ASP .NET it is achieved by creating User Controls.User controls look similar to web forms. They contain HTML and control tags, they are saved in .ascx files and
Cookies are small files that are stored either on the user's hard drive or in the browser's memory. Their main purpose is to keep information for later so it can be used for more personalised browsing experience for example.Their simplicity makes them useful long time storage on a variety of applications. However, being simple text
There is no strict definition of ASP .NET rich control but generaly these are controls whose object model is largely separate from the HTML they generate. Rich controls are still handled as single objects, they only differ from normal controls in terms of more complex HTML and user interface being generated. Let's take a look
Quite often there is a difference in how a developer tests a web form and how a user uses it. Users may: leave random characters in a field that requires a telephone number to be the input. For example, if there is a code that tracks phone calls and compares them to the phone data
What is an access modifier? Access modifiers are keywords in object-oriented languages that set the accessibility of classes, methods, and other members. Access modifiers are a specific part of programming language syntax used to facilitate the encapsulation of components. Which are the access modifiers in C#? There are 6 types of C# modifiers: public - Fully accessible. internal - Accessible only within the containing
