ReSharper Help

Parameter Information

ReSharper | Edit | Parameter Information

Whenever you are writing or studying a function call, ReSharper helps you view all overloads of the function. In a tooltip, you will see all public signatures with parameters and brief description taken from the function's XML documentation, if any.

By default, the parameter information tooltip appears as soon as you type the opening parenthesis of a function call. If necessary, you can disable the automatic appearance or display the tooltip after a timeout using the Automatically show parameter info i preference on the Environment | IntelliSense | Parameter Info options page. If the automatic appearance is disabled, you can always show the parameter information tooltip by pressing Ctrl+P while your caret is inside the function's parentheses.

As you are typing parameters, ReSharper automatically highlights the next signature compatible with the entered parameters, and grays out inapplicable signatures.

To study alternative signatures of an existing function call, set the caret inside the function's parentheses and then press Ctrl+P or choose ReSharper | Edit | Parameter Information in the main menu.

Viewing available method signatures using the ReSharper's parameter information tooltip

When the parameter information tooltip is shown, you can press Ctrl+P / Ctrl+Shift+Alt+Space or use arrow buttons to scroll through the signature list and display summary for the currently selected signature.

You can configure the parameter information tooltip on the Environment | IntelliSense | Parameter Info options page in the following ways:

  • By default, available signatures are displayed in a list. If necessary, you can limit the number of signatures in the list or make ReSharper show only one signature at a time:
    To do so, use the Display all signatures at once preference.
  • By default, delegates are displayed in their original form. If necessary, ReSharper can display them in lambda syntax. To enable this behavior, select the corresponding check box.
  • IF you do not want to see the function summary information, clear the Display extended info check box.
  • By default, ReSharper displays [NotNull] and [CanBeNull] annotations. If necessary, you can hide or show all JetBrains.Annotations attributes in the function signatures using the Annotations selector.

This feature is supported in the following languages/technologies:

C# VB.NET C++ HTML ASPX Razor JavaScript TypeScript CSS XML XAML RESX Build Scripts

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.

See Also

Last modified: 30 June 2015