Collection of Interview Questions on  ASP.NET

Answer

Just call Session.Abandon().

Example

void ClearSession()
{
Session.Abandon();
}

Answer:

The Master is common template to create base level or common layout for your whole application. It’s save time and unnecessary repeating layouts create again and again. Master Pages contains content placeholders to hold page specific content.

Answer:

The Global.asax include its code behind file Global.asax.cs/ Global.asax.vb, it is use to implement application and session level events. This file responsible for application or session vice setting can made when application or session starts and end times and also

Answer:

The Client side validation happened on the generated html. This can be say like, it’s fully happened on the browser side. If web page accepts the user input, always have to validate data in client side before pass to server side.
The Server side validation fully happened in the server side. Before process the data in server side have to validate to ignore unnecessary errors.The server side validation is increase or overhead to server but client side validation is not.

Answer:

There are two methods to implement this

1.    Redirect
2.    Transfer

Response.Redirect()

This method is complete kill the current request and start new request and send to new page. Most of the times ignore this method to navigate one page to another page in within application. if this is best for switch one application to another.
C# code

Response.Redirect("~/home.aspx");// this is only redirect to home page
Response.Redirect("~/home.aspx",true); // this is redirect to home page and also end current response.

Server. Transfer()

This is best and less resource expensive way to redirect one page to another. You can use this redirect one page to another within application.
C# Code

Server.Transfer("~/interviwquestions/aspnet.aspx");// this is redirect to asp.net interview questions page within the application
Server.Transfer(HelpHandler, true); // this is use httphandler to redirect
Server.Transfer("~/sub/page.aspx", true); // this use the page with preserver form

Answer:

The viewstate is encrypted format of the data generated by ASP.NET+IIS for first time when page has request by the browser for control existing in the page. If the information is to be shared across different controls, it can be placed in the viewstate of the page, if it is to be accessed within the scope of a single control, and then it can be placed within the viewstate of the control. The type of info one can save here may be simple data types or even complex user defined objects.further reading for viewstate here

Answer:

1. Init()
2. Load()
3. PreRender()
4. Unload()

Answer:

The Fragement caching is support to cache a web part in the web page.For instance, a Web form might contain many pieces of variable information plus a single large table that almost never changes. In this case, you might place that table in a Web user control and store the response for that control in cache.