Why should I use IDisposable instead of using in c#?

Question

Today, I wanted to perform an operation with a file so I came up with this code

    class Test1
    {
        Test1()
        {
            using (var fileSt         


        

Answer 1

why should we use IDisposable

Short answer is that any class that doesn't implement IDisposable cannot be used with using.

when using statement can itself release resources

no it cannot release resources itself.

As i wrote above that you need to implement IDisposable inorder to be able to use using. Now, when you implement IDisposable you get a Dispose method. In this method you write all the code that should take care of all the resources that needs to be disposed off when the object is no longer required.

The purpose of USING is that when an object goes out of its scope, it will call the dispose method and that is it.

Example

 using(SomeClass c = new SomeClass())
 { }

will translate to

 try
 {
     SomeClass c = new SomeClass();
 }
 finally
 {
     c.Dispose();
 }