---
title: csharp_style_namespace_declarations
description: Convert block namespaces to file-scoped. IDE0161. Applied without a compilation. Defaults to `(as written)`
url: https://docs-v3-preview.elastic.dev/reference/modifiers-and-braces/csharp_style_namespace_declarations
---
# csharp_style_namespace_declarations
Convert block namespaces to file-scoped. IDE0161. Applied without a compilation.
## Values
| Value | Notes |
|----------------|-------|
| `block_scoped` | |
| `file_scoped` | |
**Default:** `(as written)`
### `csharp_style_namespace_declarations = block_scoped`
```ini
csharp_style_namespace_declarations = block_scoped
```
```csharp
using System;
namespace N
{
public class Widget
{
public void Run() { }
}
}
```
```csharp
using System;
namespace N
{
public class Widget
{
public void Run() { }
}
}
```
### `csharp_style_namespace_declarations = file_scoped`
```ini
csharp_style_namespace_declarations = file_scoped
```
```csharp
using System;
namespace N
{
public class Widget
{
public void Run() { }
}
}
```
```csharp
using System;
namespace N;
public class Widget
{
public void Run() { }
}
```