ReSharper 2020.2 Help

Inline Field refactoring

ReSharper | Refactor | Inline | Inline…
Control+Alt+N
ReSharper_InlineVariable

This refactoring helps you replace a field with its value and remove its declaration. For obvious reasons, the refactoring can be applied to a field that has only one write usage. This may be a constant or readonly field, or a field that is initialized and used in the same function.

If the target field has conditional or complex assignment and it is used within a single function, ReSharper will create a local variable to handle the value of the field.

In the example below, we use this refactoring to inline a constant that has a single usage:

class Shape { private const string ErrorMessage = "Something has failed"; public void Draw(string s) { try { /*draw*/ } catch (Exception e) { Console.WriteLine("{0} : {1}", ErrorMessage, e); } } }
class Shape { public void Draw(string s) { try { /*draw*/ } catch (Exception e) { Console.WriteLine("{0} : {1}", "Something has failed", e); } } }

Inline a field

  1. Place the caret at the declaration or a usage of a field, which has only one write usage.

  2. Do one of the following:

    • Press Control+Alt+N and then choose Inline Field

    • Press Control+Shift+R and then choose Inline Field

    • Right-click and choose Refactor | Inline Field in the context menu.

    • Choose ReSharper | Refactor | Inline | Inline… in the main menu.

  3. If no conflicts are found, ReSharper performs the refactoring immediately. Otherwise, it prompts you to resolve conflicts.

This feature is supported in the following languages and technologies:

Language: C#Language: VB.NETLanguage: C++Language: HTMLLanguage: ASP.NETLanguage: RazorLanguage: JavaScriptLanguage: TypeScriptLanguage: CSSLanguage: XMLLanguage: XAMLLanguage: ResxLanguage: Build ScriptsLanguage: ProtobufLanguage: JSON
Feature is available in C#Feature is available in Visual Basic .NETFeature is not available in C++Feature is not available in HTMLFeature is not available in ASP.NETFeature is available in RazorFeature is not available in JavaScriptFeature is not available in TypeScriptFeature is not available in CSSFeature is not available in XMLFeature is not available in XAMLFeature is not available in Resource filesFeature is not available in build script filesFeature is not available in ProtobufFeature is not available in JSON

The instructions and examples given here address the use of the feature in C#. For details specific to other languages, see corresponding topics in the ReSharper by Language section.

Last modified: 03 September 2020