2 Tier Architecture:
This appliation having only Presentation Layer and Database Layer.
3 Tier Architecture:
This application having Presentation Layer(User Interface) ,Business Layer for only calling Database Layer,Database Access Layer(DAL for maintaining Data Access Method).
1) In Built AJAX
2) Compiler Version is changed.
Its due to Divide by Zero Error i.e 5/0
Types of jit : prejit,ecno jit,normal jit
pre jit : convert source code to native code in single completion of cycle.Normally this can be done at the time of deployment.
econo jit : coverts the only called methods to native code,however it can be removed when are not required.
normal jit : compliled the called methods to native code.In the the methods can be compiles for the first time.For latter calls it can be displayed using cached items.
We can check it item_databound event of the datagrid.
ASP.NET is a web-development platform.VB.NET is a language.Web-development with ASP.NET platform HTML,CSS, Client side scripts, ASP.NET tags and code behind with VB.NET or C#.NET or J#/C++ combination.
Marshaling performs the necessary conversions in data formats between managed and unmanaged code.CLR allows managed code to interoperate with unmanaged code usining COM Marshaler(Component of CLR)
8. A developer company sends dlls to the client. some client is not happy current functionality, so request some modification. developer made some changes and send new dll to all clients. Some client is happy with old version, tell me minimal change to so that neither clients get affected?
In vb.net we have a version control in there we have 126.96.36.199 this is the old version of Dll we have change only the 188.8.131.52 for the New dll which is compablitly of the ealry version.
One need to specify "bindingRedirect" in the config file.
<assemblyIdentity name="Test" publickeyToken="b035c4774706cc72" culture="neutral">
exec sp_rename 'oldTableName' , 'newTableName'
Use server side for secure validation. Use client side for fast,user friendly validations.
Execute sp_rename 'oldtablename', 'newtableaname'
sp_rename OldTableName, NewTableName
when a class is not provided with full functionalitythen it is declared as abstract.it doesn't support instance creation as well as it cannot be overridable to child class.interface is a colection of methods only without functionality.interface is 90% same as abstract class.
An interface class is a class contains all functions that are are abstract.
An abstract class is a class that may or may not contain an abstract function.
Abstract function : functions with only declaration , no definition is present. the user implimenting, inheriting the function has to override the function , mandatorily.
Instances of abstract class and interface class are made at runtime.so objects cannot be created ,due to lack of informations of the class.