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Smart completion

Last modified: 23 September 2024

This command filters the list of types, methods, and variables to match the expected type of expression. It works anywhere as long as ReSharper can determine the expected type of the expression, for example, right-hand sides of assignments, variable initializers, or return statements. If several return types are possible, ReSharper detects the most recently used symbol of an applicable type and automatically selects it in the lookup list. Type-Matching Completion can also suggest creating anonymous delegates, lambda expressions, and regular methods, as well as local variables for out parameters. In addition to that, in object initializers, Type-Matching Completion suggests fields/properties that were not yet assigned a value.

By default, smart completion items in C# and VB.NET are included in the suggestion lists of automatic and basic completion. If you want to change the default behavior, use the corresponding controls on the Environment | IntelliSense | Completion Behavior page of ReSharper options Alt+R, O.

When you use code completion over existing code items, you can either insert the selected completion suggestion before the existing item by pressing Enter or replace the existing identifier with the selected suggestion by pressing Tab. If necessary, you can change the default shortcuts on the Environment | IntelliSense | Completion Characters page of ReSharper options Alt+R, O.

When you select items in completion lists using keyboard, the selection will jump to the first item after the last item and vice versa. You can disable this behavior by clearing Loop selection around ends of a list on the Environment | IntelliSense | Completion Appearance page of ReSharper options Alt+R, O.

This feature is supported in the following languages and technologies:

The instructions and examples given here address the use of the feature in C#. For more information about other languages, refer to corresponding topics in the Languages and frameworks section.