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QuestPond’s Interview Questions & Answers on learning ASP.NET

Explain Query String in ASP.NET and what are benefits and limitations of using Query Strings?

A query string is information sent to the server appended to the end of a page URL.

Following are the benefits of using query string for state management: -
  • No server resources are required. The query string containing in the HTTP requests for a specific URL.
  • All browsers support query strings.
Following are limitations of query string: -
  • Query string data is directly visible to user thus leading to security problems.-
  • Most browsers and client devices impose a 255-character limit on URL length.

Below is a sample “Login” query string passed in URL
http://www.querystring.com/login.asp?login=testing.

This query string data can then be requested later by using Request.QueryString(“login”).

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Author:
Shivprasad koirala Koirala
I am a Microsoft MVP for ASP/ASP.NET and currently a CEO of a small E-learning company in India. We are very much active in making training videos , writing books and corporate trainings. Do visit my site http://www.questpond.com for .NET, C# , design pattern , WCF , Silverlight , LINQ , ASP.NET , ADO.NET , Sharepoint , UML , SQL Server training and Interview questions and answers
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