val(textbox1.text)+val(textbox2.text)=txtbox3.text

difference between a console application and a Windows 
application is the way in which the program gets user 
input. A console application gets keyboard input through 
the Console.Read or Console.ReadLine methods; a Windows 
Forms application gets keyboard (and other) input through 
events.

windows forms provide the graphical user interface (GUI) 
where as console is the character user interface(CUI)
you have to use the hard code to develope the application 
using console, lots of thing you must remember where as the 
windows forms development is more user friendly and easy to 
use.

Console Applications are command-line oriented applications
that allow us to read characters from the console, write
characters to the console and are executed in the DOS
version. Console Applications are written in code and are
supported by the System.Console namespace.

Console applications are command line applications.We have 
to give inputs through keyboard without use of mice.But, in 
windows applications, users should give inputs through mice 
without use of keypad.

use following code in button click event
System.Diagnostics.Process.Start(@"\write physical path of 
exe file");

Sorry, in the above code, after file name you can give 
comma seperated values of arguments which you want to pass 
as input value in exe file,

Shell("C:\WINDOWS\system32\calc.exe", 
AppWinStyle.NormalFocus)

Shell("C:\WINDOWS\system32\calc.exe", 
AppWinStyle.NormalFocus)

Shell("C:\WINDOWS\system32\calc.exe", 
AppWinStyle.NormalFocus)

just configure the report datasource by database

There are 5 objects in asp.net


  1.Response:This object is to response to other eg:

  2.Request:This object is request from server
  
  3.Application: This object is store global information of
application.

  4.Session:This object used store the values into variable.
  
  5.Server:

there are six object in asp.net.

6.object context object.

I will write code of value assignment in UserAddedRow event 
of grid.

eg.

Name of grid -grdSticker.
const iRollNo as integer=0

grdsticker.rows(e.rowindex-1).cells(iRollNo).value=7

System.Object

system.web.ui

System.Object is base class of .NET