ReSharper 2020.2 Help

Convert Indexer to Method refactoring

ReSharper | Refactor | Convert | Indexer to Method…

This refactoring helps you convert one or both accessors of an indexer into methods and update usages of the indexer in the current solution accordingly.

In the example below ReSharper converts both getter and setter accessors of the indexer and updates the usage:

class BookLibrary { private Book[] books = new Book[1000]; public Book this[int index] { get => books[index]; set => books[index] = value; } public void TestInsertBookAt(Book book, int index) { this[index] = book; } }
class BookLibrary { private Book[] books = new Book[1000]; public void SetItem(int index, Book value) => books[index] = value; public Book GetItem(int index) => books[index]; public void TestInsertBookAt(Book book, int index) { SetItem(index, book); } }

Convert an indexer into a method

  1. Place the caret at this keyword of an indexer in the editor or select an indexer in the File Structure window.

  2. Do one of the following:

    • Press Control+Shift+R and then choose Convert Indexer to Method(s)

    • Right-click and choose Refactor | Convert Indexer to Method(s) in the context menu.

    • Choose ReSharper | Refactor | Convert | Indexer to Method… in the main menu.

    The Convert Indexer to Method(s) dialog will open.

  3. Use controls in the dialog to choose which accessors should be converted and to specify names for the created methods.

  4. To apply the refactoring, click Next.

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

ReSharper refactorings: Convert indexer to method

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 not 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