ReSharper 2018.2 Help

Solution-Wide Code Inspections

Most of ReSharper's code inspections only need the source code of a single file to detect code issues. In addition to these inspections, ReSharper provides solution-wide inspections for code issues which are only detectable in the scope of the entire solution — e.g. to detect an unused non-private member ReSharper needs to analyze the entire solution.

For the solution-wide inspection to work, you need either or both of the following:

  • The simplified global usage checking is enabled — Show unused non-private type members when solution-wide analysis is off on the Code Inspection | Settings page of ReSharper options.

  • The solution-wide analysis is enabled — Enable solution-wide analysis on the Code Inspection | Settings page of ReSharper options.

Note that even if a symbol has no direct usages in your solution and ReSharper warns you about it, there could be cases where symbols are used indirectly — e.g. via reflection — or they could just be designed as public API. In all those cases you would want to suppress the usage-checking inspection for the symbol in question, and there are several ways to do so:

Similarly to any other inspection, you can also disable or change severity level of any solution-wide inspection. This can be done right from the Alt+Enter menu on a code issue that the inspection highlights. Alternatively, you can disable/enable or change severity levels of inspections on the Code Inspection | Inspection Severity page of ReSharper options — solution-wide inspections are marked with the Non-private accessibility label. Note that you cannot set the 'Error' severity for solution-wide inspections.

When the solution-wide analysis is enabled, issues detected by the solution-wide inspections are highlighted in the opened files in the same way as other issues, and they also appear in the Inspection Results window when you run code inspection in specific scope. However, they do not appear in the Errors/Warnings in Solution window.

If necessary, you can disable solution-wide inspections or only enable solution-wide inspections on internal symbols for specific projects. To do so, use the Solution-Wide Inspections selector in the Project Item Properties popup, which you can invoke by selecting Edit project item properties from the context menu of the project in the Solution Explorer.
Note that independently of the value in this selector, solution-wide inspections would be disabled if the solution-wide analysis is disabled in ReSharper options.

ReSharper provides the following solution-wide inspections:

Inspection

Language

Default Severity

Auto-property can be made get-only (non-private accessibility)

C#

Suggestion

Class can be made sealed(non-inheritable) (non-private accessibility)

C#

Disabled

Convert local variable or field to constant (non-private accessibility)

C#

Hint

Field can be made readonly (non-private accessibility)

C#

Suggestion

Member can be made private (non-private accessibility)

C#

Suggestion

Member can be made protected (non-private accessibility)

C#

Suggestion

Member can be made static(shared) (non-private accessibility)

C#

Hint

Parameter type can be IEnumerable<T> (non-private accessibility)

C#

Hint

Return type can be IEnumerable<T> (non-private accessibility)

C#

Hint

Introduce optional parameters (non-private accessibility)

C#

Suggestion

Abstract or virtual(overridable) event is never invoked

C#

Suggestion

Auto-property accessor is never used (non-private accessibility)

C#

Warning

Class is never instantiated (non-private accessibility)

C#

Suggestion

Collection is never updated (non-private accessibility)

C#

Warning

Collection's content is never queried (non-private accessibility)

C#

Warning

Event is never subscribed to (non-private accessibility)

C#

Suggestion

Non-accessed field (non-private accessibility)

C#

Suggestion

Suspicious type conversion or check

C#

Warning

Unassigned field (non-private accessibility)

C#

Suggestion

Class with virtual(overridable) members never inherited (non-private accessibility)

C#

Suggestion

Method return value is never used (non-private accessibility)

C#

Suggestion

Parameter is only used for precondition check (non-private accessibility)

C#

Suggestion

Redundant method overload (non-private accessibility)

C#

Suggestion

Type member is never accessed via base type (non-private accessibility)

C#

Suggestion

Type member is only used in overrides (non-private accessibility)

C#

Suggestion

Type or member is never used (non-private accessibility)

C#

Suggestion

Unused parameter (non-private accessibility)

C#

Suggestion

Virtual(overridable) member is never overridden (non-private accessibility)

C#

Suggestion

Auto-property can be made get-only (non-private accessibility)

VB.NET

Suggestion

Class can be made sealed(non-inheritable) (non-private accessibility)

VB.NET

Disabled

Convert local variable or field to constant (non-private accessibility)

VB.NET

Hint

Field can be made readonly (non-private accessibility)

VB.NET

Suggestion

Member can be made private (non-private accessibility)

VB.NET

Suggestion

Member can be made protected (non-private accessibility)

VB.NET

Suggestion

Member can be made static(shared) (non-private accessibility)

VB.NET

Hint

Parameter type can be IEnumerable<T> (non-private accessibility)

VB.NET

Hint

Return type can be IEnumerable<T> (non-private accessibility)

VB.NET

Hint

Abstract or virtual(overridable) event is never invoked

VB.NET

Suggestion

Auto-property accessor is never used (non-private accessibility)

VB.NET

Warning

Class is never instantiated (non-private accessibility)

VB.NET

Suggestion

Collection is never updated (non-private accessibility)

VB.NET

Warning

Collection's content is never queried (non-private accessibility)

VB.NET

Warning

Event is never subscribed to (non-private accessibility)

VB.NET

Suggestion

Non-accessed field (non-private accessibility)

VB.NET

Suggestion

Suspicious type conversion or check

VB.NET

Warning

Unassigned field (non-private accessibility)

VB.NET

Suggestion

Class with virtual(overridable) members never inherited (non-private accessibility)

VB.NET

Suggestion

Method return value is never used (non-private accessibility)

VB.NET

Suggestion

Parameter is only used for precondition check (non-private accessibility)

VB.NET

Suggestion

Type member is never accessed via base type (non-private accessibility)

VB.NET

Suggestion

Type member is only used in overrides (non-private accessibility)

VB.NET

Suggestion

Type or member is never used (non-private accessibility)

VB.NET

Suggestion

Unused parameter (non-private accessibility)

VB.NET

Suggestion

Virtual(overridable) member is never overridden (non-private accessibility)

VB.NET

Suggestion

Type or member is never used (non-private accessibility)

JavaScript

Suggestion

Non-accessed field (non-private accessibility)

ASP.NET

Suggestion

Type or member is never used (non-private accessibility)

ASP.NET

Suggestion

Member can be made private (non-private accessibility)

XAML

Suggestion

Member can be made protected (non-private accessibility)

XAML

Suggestion

Non-accessed field (non-private accessibility)

XAML

Suggestion

Type or member is never used (non-private accessibility)

XAML

Suggestion

Non-accessed field (non-private accessibility)

HttpHandler or WebService

Suggestion

Type or member is never used (non-private accessibility)

HttpHandler or WebService

Suggestion

Last modified: 5 October 2018

See Also