Software Applications Programming Errors and solutions.

DotNet and SQL Interview Questions 1)Say in a structure which is value type. we have added a reference type variable. will it be stored in stack memory or heap  2)in data-grid you are displaying a table. if you want to know what are the rows which are updated how do you implement it  3)suppose you want to store you connection string where are you going to store it apart from web.config and appsettings.  4)in try catch scenario there are two catch blocks one is System defined & other is user defined which will be executed first.  5)in boxing & unboxing which one is expensive.  6)difference between catch and throw  7)you have deployed windows service at client place. say suppose it is giving erroneous results. it is running application. how do you debug it.  8)there is a webservice deployed at the client place how can you check whether that application is working fine or not.  9)you have deleted a record from database from...