JetBrains Rider 2022.1 Help

Extract Global Using refactoring

This refactoring allows you to convert one or more local using directives into global using directives and move them to a new or existing file.

In the example below, we apply this refactoring to using System.Collections; in file One.cs and place the extracted using to GlobalUsings.cs.

// One.cs using System.Collections; class One { void Test(ArrayList list) { // do something } } // Two.cs using System.Collections; using System.Xml; class Two { void Test(ArrayList list, XmlReader reader) { // do something } } // GlobalUsings.cs global using System.Linq; global using System.Threading.Tasks;
// One.cs class One { void Test(ArrayList list) { // do something } } // Two.cs using System.Xml; class Two { void Test(ArrayList list, XmlReader reader) { // do something } } // GlobalUsings.cs global using System.Linq; global using System.Threading.Tasks; global using System.Collections;

Extract a global using

  1. Set the caret at a using directive or select multiple directives.

  2. Do one of the following:

    • Press Ctrl+Alt+Shift+T and then choose Extract Global Using

    • Choose Refactor | Extract Global Using in the main menu.

    The Extract Global Using dialog will open.

  3. Specify where the global using should be moved — this could be any existing .cs file in the current project or a new .cs file.

  4. To apply the refactoring, click Next.

  5. JetBrains Rider will remove the using directives for the selected namespaces from all files in the project (because a local using becomes redundant as soon as a global using appears for the same namespace) and add these directives as global using directives to the specified file.

Last modified: 08 April 2022