Make selected block of text uppercase

The question is about how to make CTRL+SHIFT+U work in Visual Studio Code. Here is how to do it in version 1.57.1 or above.

Steps:

1. Open Visual Studio Code.

2. Press CTRL+SHIFT+P.

3. Type

   open keyboard shortcuts
   

4. Select

   Open keyboard shortcuts (json)

An editor will appear with keybindings.json file. Place the following JSON in there and save:

[
    {
        "key": "ctrl+shift+u",
        "command": "editor.action.transformToUppercase",
        "when": "editorTextFocus"
    },
    {
        "key": "ctrl+shift+l",
        "command": "editor.action.transformToLowercase",
        "when": "editorTextFocus"
    }
]

Now CTRL+SHIFT+U will capitalise selected text, even if multi line. In the same way, CTRL+SHIFT+L will make selected text lowercase.

These commands are built into VS Code and no extensions are required to make them work.

Update August 2021

There is a UI to see and update keyboard shortcuts:

File-> Preferences -> Keyboard Shortcuts.

1. Find "Transform to Uppercase":

   

2. Click the + icon.

3. In the popup, press the desired key combination and hit enter:

   

Do the same for lower case.

Note

In the new versions (eg 1.57.x) of VS Code, Ctrl+Shift+L is a shortcut for bulk selecting all selected text occurrences. So you can use another combination, like Ctrl+Shift+/ etc.

Whenever you want to do something in VS Code and don't know how, it's a good idea to bring up the command palette with CTRL+SHIFT+P (CMD+SHIFT+P on mac), and try typing in a keyword for you want. Oftentimes the command will show up there so you don't have to go searching the net for how to do something.

Highlight the text you want to uppercase. Then hit CTRL+SHIFT+P to bring up the command palette. Then start typing the word "uppercase", and you'll see the Transform to Uppercase command. Click that and it will make your text uppercase.

Creator of the change-case extension here. I've updated the extension to support spanning lines.

To map the upper case command to a keybinding (e.g. CTRL+T+U), click File -> Preferences -> Keyboard shortcuts, and insert the following into the json config:

{
  "key": "ctrl+t ctrl+u",
  "command": "extension.changeCase.upper",
  "when": "editorTextFocus"
}

EDIT:

With the November 2016 (release notes) update of VSCode, there is built-in support for converting to upper case and lower case via the commands editor.action.transformToUppercase and editor.action.transformToLowercase. These don't have default keybindings. They also work with multi-line blocks.

The change-case extension is still useful for other text transformations, e.g. camelCase, PascalCase, snake_case, kebab-case, etc.

Update on March 8, 2018 with Visual Studio Code 1.20.1 (mac)

It has been simplified quite a lot lately.
Very easy and straight forward now.

1. From "Code" -> "Preferences" -> "Keyboard shortcuts"

2. From the search box just search for "editor.action.transformTo", You will see the screen like:

3. Click the "plus" sign at the left of each item, it will prompt dialog for your to [press] you desired key-bindings, after it showing that on the screen, just hit [Enter] to save.