Static variables, what is their life span?The time during which a variable retains its value is known as its lifetime . The value of a variable may change over its lifetime, but it retains some value. When a variable loses scope, it no longer has a value. Static fields are (unless [ThreadStatic]) one instance per app-domain, meaning: all requests hare the same value. By default, if the application itself does not receive any requests for 20 minutes, it will unload from memory. All static variables will then be lost; on the next request to the app, a new app instance will get loaded. Similar to how a session expires when a user stops making requests, an application instance can also expire. The AppDomain won't be collected while assigned to the static field, and will expire if the App-Pool recycles in IIS.
- Asp.Net Interview Questions (Part-1)
- Asp.Net Interview Questions (Part-2)
- Advantages of ASP.NET Web Development
- What is IIS - Internet Information Server
- What is Virtual Directory
- What is HttpHandler
- Page Directives in Asp.Net
- What is a postback
- What is IsPostBack
- What is global.asax
- Difference between Machine.config and web.config
- Difference between HTML control and Web Server control
- What is Query String
- Difference between Authentication and Authorization
- How to secure Connection Strings
- What is ASP.Net tracing
- Passing values between Asp.Net pages
- Differentiate between client side validation and server side validation
- How to Get host domain from URL
- Adding a Favicon To Your Website
- AutoEventWireup attribute in ASP.NET
- Can I use multiple programming languages in a ASP.net Web Application?
- Difference: Response.Write and Response.Output.Write
- How many web.config files can I have in an application?
- What is Protected Configuration in asp.net?
- Difference between ASP Session and ASP.NET Session?
- What does mean Stateless?
- What is the Difference between session and caching?
- What are different types of caching using cache object of ASP.NET?
- Which method is used to remove the cache object?
- How many types of Cookies are available in ASP.NET?
- What is Page Life Cycle in ASP.net?
- What is the code behind and Inline Code in Asp.Net?
- What is master page in ASP.NET?
- Can you change a Master Page dynamically at runtime?
- What is cross-page posting in ASP.NET?
- How to redirect a page in asp.net without performing a round trip ?
- How to register custom server control on ASP.NET page?
- How do you validate Input data in Asp.Net?
- What's the difference between ViewData and ViewBag?
- Difference between Response.Redirect and Server.Transfer
- What is the function of the CustomValidator control?
- Define RequiredFieldValidator?
- Difference between custom control and user control
- Difference between Label and Literal control in ASP.Net
- What are the major events in Global.Asax file?
- What is Event Bubbling in asp.net ?
- What is Delay signing?
- What is the difference between in-proc and out-of-proc?
- What is the difference between POST and GET?
- A potentially dangerous Request.Form value was detected from the client