My config files for .net projects

.editorconfig

# EditorConfig is awesome:http://EditorConfig.org

# top-most EditorConfig file
root = true

# Don't use tabs for indentation.
[*]
indent_style = space
# (Please don't specify an indent_size here; that has too many unintended consequences.)

# We recommend you to keep these unchanged
end_of_line = crlf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

[*.md]
trim_trailing_whitespace = false

# Code files
[*.{cs,csx,vb,vbx}]
indent_size = 4

# Xml project files
[*.{csproj,vbproj,vcxproj,vcxproj.filters,proj,projitems,shproj}]
indent_size = 2

# Xml config files
[*.{props,targets,ruleset,config,nuspec,resx,vsixmanifest,vsct}]
indent_size = 2

# Teamcity build files
[.teamcity/**/*.xml]
indent_size = 2

# JSON files
[*.json]
indent_size = 2

# YAML files
[*.{yaml,yml}]
indent_size = 2

# Dotnet code style settings:
[*.{cs,vb}]
# Sort using and Import directives with System.* appearing first
dotnet_sort_system_directives_first = true
# Avoid "this." and "Me." if not necessary
dotnet_style_qualification_for_field = false:suggestion
dotnet_style_qualification_for_property = false:suggestion
dotnet_style_qualification_for_method = false:suggestion
dotnet_style_qualification_for_event = false:suggestion

# Use language keywords instead of framework type names for type references
dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
dotnet_style_predefined_type_for_member_access = true:suggestion

# Suggest more modern language features when available
dotnet_style_object_initializer = true:suggestion
dotnet_style_collection_initializer = true:suggestion
dotnet_style_coalesce_expression = true:suggestion
dotnet_style_null_propagation = true:suggestion
dotnet_style_explicit_tuple_names = true:suggestion

# CSharp code style settings:
[*.cs]
# Prefer "var" everywhere
csharp_style_var_for_built_in_types = true:suggestion
csharp_style_var_when_type_is_apparent = true:suggestion
csharp_style_var_elsewhere = true:suggestion

# Prefer method-like constructs to have a block body
csharp_style_expression_bodied_methods = false:none
csharp_style_expression_bodied_constructors = false:none
csharp_style_expression_bodied_operators = false:none

# Prefer property-like constructs to have an expression-body
csharp_style_expression_bodied_properties = true:none
csharp_style_expression_bodied_indexers = true:none
csharp_style_expression_bodied_accessors = true:none

# Suggest more modern language features when available
csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
csharp_style_inlined_variable_declaration = true:suggestion
csharp_style_throw_expression = true:suggestion
csharp_style_conditional_delegate_call = true:suggestion

# Newline settings
csharp_new_line_before_open_brace = all
csharp_new_line_before_else = true
csharp_new_line_before_catch = true
csharp_new_line_before_finally = true
csharp_new_line_before_members_in_object_initializers = true
csharp_new_line_before_members_in_anonymous_types = true

#### Naming styles ####

# Naming rules

# Instance fields are camelCase and start with _
dotnet_naming_rule.instance_fields_should_be_camel_case.severity = suggestion
dotnet_naming_rule.instance_fields_should_be_camel_case.symbols = instance_fields
dotnet_naming_rule.instance_fields_should_be_camel_case.style = instance_field_style

dotnet_naming_symbols.instance_fields.applicable_kinds = field
dotnet_naming_symbols.instance_fields.applicable_accessibilities = private, protected, internal, protected internal, private protected

dotnet_naming_style.instance_field_style.capitalization = camel_case
dotnet_naming_style.instance_field_style.required_prefix = _

# Constants are PascalCase
dotnet_naming_rule.constants_should_be_pascal_case.severity = suggestion
dotnet_naming_rule.constants_should_be_pascal_case.symbols = constants
dotnet_naming_rule.constants_should_be_pascal_case.style = constant_style

dotnet_naming_symbols.constants.applicable_kinds = field, local
dotnet_naming_symbols.constants.required_modifiers = const

dotnet_naming_style.constant_style.capitalization = pascal_case

.gitignore

# IDE
.vs/
.vscode/
.idea/

# Build artefacts
[Oo]bj/
[Bb]in/
msbuild.log
msbuild.err
msbuild.wrn
msbuild.binlog

# Benchmark
BenchmarkDotNet.Artifacts/

# User-specific files
*.suo
*.user
*.userosscache
*.sln.docstates
.env

# ReSharper
_ReSharper*/
*.[Rr]e[Ss]harper
*.DotSettings.user

# StyleCop
StyleCopReport.xml
StyleCop.Cache

Directory.Build.props

<Project>

  <PropertyGroup>
    <Version>1.0.0</Version>
    <LangVersion>9.0</LangVersion>
    <CodeAnalysisRuleSet>..\StyleCop.ruleset</CodeAnalysisRuleSet>
    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
  </ItemGroup>

</Project>

StyleCop.ruleset

<?xml version="1.0" encoding="utf-8"?>
<RuleSet Name="Rules for WebAPI" Description="Code analysis rules for Web API" ToolsVersion="15.0">
  <Include Path="minimumrecommendedrules.ruleset" Action="Default" />
  <Rules AnalyzerId="StyleCop.Analyzers" RuleNamespace="StyleCop.Analyzers">
    <Rule Id="SA0001" Action="None" />
    <Rule Id="SA1101" Action="None" />
    <Rule Id="SA1118" Action="None" />
    <Rule Id="SA1309" Action="None" />
    <Rule Id="SA1600" Action="None" />
    <Rule Id="SA1602" Action="None" />
    <Rule Id="SA1633" Action="None" />
    <Rule Id="SA1652" Action="None" />
  </Rules>
  <Rules AnalyzerId="Microsoft.CodeAnalysis.Analyzers" RuleNamespace="Microsoft.CodeAnalysis.Analyzers">
    <Rule Id="RS1001" Action="Error" />
    <Rule Id="RS1004" Action="Error" />
    <Rule Id="RS1009" Action="Error" />
  </Rules>
  <Rules AnalyzerId="Microsoft.CodeAnalysis.CSharp.Analyzers" RuleNamespace="Microsoft.CodeAnalysis.CSharp.Analyzers">
    <Rule Id="RS1002" Action="Error" />
    <Rule Id="RS1003" Action="Error" />
    <Rule Id="RS1005" Action="Error" />
    <Rule Id="RS1006" Action="Error" />
    <Rule Id="RS1007" Action="Error" />
    <Rule Id="RS1008" Action="Error" />
    <Rule Id="RS1010" Action="Error" />
    <Rule Id="RS1011" Action="Error" />
    <Rule Id="RS1012" Action="Error" />
    <Rule Id="RS1013" Action="Error" />
    <Rule Id="RS1014" Action="Error" />
  </Rules>
</RuleSet>