interview

home / developersection / interviews / what is the use of using keyword in c#

Ask Question
Niraj Kumar Mishra

Other

Follow Message
Can you answer this question?
Answer

1 Answers

Niraj Kumar Mishra

Niraj Kumar Mishra

22-Aug-2017
 We can use using keyword in C# program in to Place.
  Place 1:  Generally when you want to add any namespace in your program  then it is useful like:
               using System;
              using System.Collections.Generic;
               using System.Linq;
                using System.Web;  

    Place 2:     Second  we use using keyword when you want to close ( destroy ) any object connection automatically then it is      very  useful  like :
 
 using (SqlConnection con = new SqlConnection(//connection string)
{
using (SqlCommand cmd = new SqlCommand(storedProcname, con))
{
try{
    con.open();
//data reader code
}
catch
{
}
}
}
  it close the SqlConnection Automatically....
MindStick Training
MindStick Training

Liked By

We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy