Reading Files

Introduction

The best example of an unmanaged resource is a file that resides on a disk. To open it, read it, write to it, or delete it, any programming language must ultimately settle with operating system calls. Because the operating system doesn’t run on top of the CLR, OS calls are considered unmanaged code. Therefore, we must dispose of objects that use such external calls appropriately. Before we start the creation and disposal of file objects, we must first understand how .NET works with files. ...