<h2 id="heading-whats-using">What’s ‘Using’?</h2>
<p>In C#, ‘using’ helps us clean up things we don’t need anymore, like open files or network connections. This helps our program run smoother and faster.</p>
<h2 id="heading-how-does-it-work">How Does It Work?</h2>
<p>Here’s a simple example:</p>
<pre><code class="lang-csharp"><span class="hljs-keyword">using</span> (StreamReader reader = <span class="hljs-keyword">new</span> StreamReader(<span class="hljs-string">"file.txt"</span>))
{
    <span class="hljs-keyword">string</span> line;
    <span class="hljs-keyword">while</span> ((line = reader.ReadLine()) != <span class="hljs-literal">null</span>)
    {
        Console.WriteLine(line);
    }
}
</code></pre>
<p>In this code, we’re reading a file using <code>StreamReader</code>. Once we’re done, ‘using’ automatically closes the file for us. This happens even if there’s an error in the code inside ‘using’. So, it’s a safe and easy way to manage resources.</p>


## What’s ‘Using’?

In C#, ‘using’ helps us clean up things we don’t need anymore, like open files or network connections. This helps our program run smoother and faster.

## How Does It Work?

Here’s a simple example:

```csharp
using (StreamReader reader = new StreamReader("file.txt"))
{
    string line;
    while ((line = reader.ReadLine()) != null)
    {
        Console.WriteLine(line);
    }
}
```

In this code, we’re reading a file using `StreamReader`. Once we’re done, ‘using’ automatically closes the file for us. This happens even if there’s an error in the code inside ‘using’. So, it’s a safe and easy way to manage resources.

how to use using statement in c#. Using statement reduce memory leaks.

‘Using’ Statement in C#

Table of contents

What’s ‘Using’?

How Does It Work?