You can quickly navigate to a declaration of a symbol in the code editor. Do one of the following:
The source file will be opened and the caret will be positioned at the selected type, method, field, or local variable declaration. If the file with this item is closed it will be opened in a new tab. In the case of library symbols, the corresponding entity will be opened in the Object Browser.

After you press Ctrl + B, the caret is repositioned as follows:

However, if you position the caret at TrimEnd and press Ctrl + B, the Object Browser window will be opened at the declaration of the method TrimEnd of the class System.String.