JetBrains Rider 2024.1 Help

Duplicate line or selection

One of the ways of creating a code element similar to an existing one (for example, a new method overload or a new auto-implemented property) is cloning the existing element with copy-paste and then editing the clone.

JetBrains Rider helps you streamline the cloning part — with a single keystroke Ctrl+D the cloned code is inserted right after the original.

Duplicate the current line or selection

  1. If you want to clone a line, place the caret at this line line. To clone an arbitrary piece of code, select it in the editor.

    To select a logical code block, press Ctrl+W one or more times; to select the current declaration, press Ctrl+Alt+Shift+[.

  2. Press Ctrl+D or choose Edit | Duplicate Line or Selection from the main menu . Alternatively, you can press Ctrl+Shift+A, start typing the command name in the popup, and then choose it there.

  3. The duplicated line or multi-line selection is inserted below the original line or selection; the duplicated inline selection is inserted to the right of the original.

  4. If you have duplicated a selection, the selection stays at the duplicate. If necessary, you can press Ctrl+Shift+Alt and then use arrow keys to move the duplicate to the desired position.

Note that when you duplicate a selection (even if the selection spans multiple lines), the duplicate is inserted right after the initial selection, without a line break.

If you want the selection to be copied as whole lines and pasted starting with a new line, use the Duplicate Entire Lines action.

This action doesn't have a keyboard shortcut by default, so you can either use Go to Action Ctrl+Shift+A to invoke it, or add a keyboard shortcut to it.

Last modified: 11 February 2024