Difference between ReadOnly and Constant in C#

If you are using constant value you have intitalize that timeitself,but readonly filed u can initialize that timeitself or else in constructor.

Constant value is assigned in Compile time
readonly value is assigned in Run time

using System;

namespace difference
{

 class read
 {
  public readonly int d = DateTime.Now.Hour; 
  public const int c = 10;
  
  public read(int x)
  {
   d = x;   
   
  }
  public read(int x,int y)
  {
   d = 12;   
  }


 
  }
 class Class1
 {
    
  static void Main(string[] args)
  {
   read obj = new read(DateTime.Now.Hour);   
   Console.WriteLine(obj.d);
   Console.ReadLine();
  }
 }
}

Cursor in SQL SERVER

DECLARE country CURSOR FOR SELECT PKID,CountryName FROM countryMaster

OPEN country

FETCH NEXT FROM country
WHILE @@FETCH_STATUS = 0
BEGIN
FETCH NEXT FROM country
END

CLOSE country

DEALLOCATE country

HTC ( HTML Component )

If u wanna use the HTC,u have to give the style to corresponding controls.

Here I have attached the onblur to textbox.


This is ur HTML or ASPX Page
-----------------------------------

<INPUT TYPE="text" NAME="" style="behavior:url(sankar.htc)"/>



sankar.htc
-----------------------

<PUBLIC:ATTACH EVENT="onblur" ONEVENT="hi()">

<script language="javascript">
function hi()
{
alert(this.value);
}
</script>