Use inferred member names (IDE0037)

Property Value
Rule ID IDE0037
Title Use inferred member name
Category Style
Subcategory Language rules (expression-level preferences)
Applicable languages C# 7.1+ and Visual Basic 15+
Introduced version Visual Studio 2017 version 15.6
Options dotnet_style_prefer_inferred_tuple_names


This rule enforces whether inferred tuple element names and inferred anonymous type member names are preferred when the tuple or anonymous type is declared.


Set the values of the rule's associated options to specify whether inferred or explicit names are preferred for tuple elements and anonymous type members.

For information about configuring options, see Option format.


Property Value Description
Option name dotnet_style_prefer_inferred_tuple_names
Option values true Prefer inferred tuple element names
false Prefer explicit tuple element names
Default option value true
// dotnet_style_prefer_inferred_tuple_names = true
var tuple = (age, name);

// dotnet_style_prefer_inferred_tuple_names = false
var tuple = (age: age, name: name);
' dotnet_style_prefer_inferred_tuple_names = true
Dim tuple = (name, age)

' dotnet_style_prefer_inferred_tuple_names = false
Dim tuple = (name:=name, age:=age)


Property Value Description
Option name dotnet_style_prefer_inferred_anonymous_type_member_names
Option values true Prefer inferred anonymous type member names
false Prefer explicit anonymous type member names
Default option value true
// dotnet_style_prefer_inferred_anonymous_type_member_names = true
var anon = new { age, name };

// dotnet_style_prefer_inferred_anonymous_type_member_names = false
var anon = new { age = age, name = name };
' dotnet_style_prefer_inferred_anonymous_type_member_names = true
Dim anon = New With {name, age}

' dotnet_style_prefer_inferred_anonymous_type_member_names = false
Dim anon = New With {.name = name, .age = age}

Suppress a warning

If you want to suppress only a single violation, add preprocessor directives to your source file to disable and then re-enable the rule.

#pragma warning disable IDE0037
// The code that's violating the rule is on this line.
#pragma warning restore IDE0037

To disable the rule for a file, folder, or project, set its severity to none in the configuration file.

dotnet_diagnostic.IDE0037.severity = none

To disable all of the code-style rules, set the severity for the category Style to none in the configuration file.

dotnet_analyzer_diagnostic.category-Style.severity = none

For more information, see How to suppress code analysis warnings.

See also