# this

A reference to the current object inside its instance code.

## What is **this** in C#?

**this** — A reference to the current object inside its instance code.

```csharp
class Book
{
    string title;

    Book(string title)
    {
        this.title = title;
    }
}
```

Level: Journeyman · [More C# terms at this level](https://www.ask-codey.com/glossary/subjects/c-sharp/journeyman)

Updated: September 27, 2026

## In other subjects

- [this in Java](https://www.ask-codey.com/glossary/this)
- [this in JavaScript](https://www.ask-codey.com/glossary/this-javascript)

Source: https://www.ask-codey.com/glossary/this-c-sharp