Basic C# naming and code style conventions as a .editorconfig

.editorconfig

# Remove the line below if you want to inherit .editorconfig settings from higher directories
root = true

#### this file was exported via Visual Studio 2022, after configurating VS using
#### https://learn.microsoft.com/en-us/dotnet/csharp/fundamentals/coding-style/coding-conventions
#### and https://github.com/dotnet/runtime/blob/main/docs/coding-guidelines/coding-style.md
#### additionally it disables the basic IDExxx Analyzer to only show Roslynator ones (see section 'Analyzer configurations' to change that)

# C# files
[*.cs]

#### Core EditorConfig Options ####

# Indentation and spacing
indent_size = 4
indent_style = space
tab_width = 4

# New line preferences
end_of_line = crlf
insert_final_newline = false

#### Analyzer configurations ####
# Remove unnecessary blank line
dotnet_diagnostic.rcs1036.severity = none
# Remove redundant parenthesis
dotnet_diagnostic.rcs1032.severity = none
# Declare inside namespace
dotnet_diagnostic.rcs1110.severity = warning

# disable IDExxxx messages
dotnet_analyzer_diagnostic.category-CodeQuality.severity = none
dotnet_analyzer_diagnostic.category-Style.severity = none
# allow Roslynator messages
dotnet_analyzer_diagnostic.category-roslynator.severity = default|none|silent|suggestion|warning|error




#### .NET Coding Conventions ####

# Organize usings
dotnet_separate_import_directive_groups = false
dotnet_sort_system_directives_first = false
file_header_template = unset

# this. and Me. preferences
dotnet_style_qualification_for_event = false
dotnet_style_qualification_for_field = false
dotnet_style_qualification_for_method = false
dotnet_style_qualification_for_property = false

# Language keywords vs BCL types preferences
dotnet_style_predefined_type_for_locals_parameters_members = true
dotnet_style_predefined_type_for_member_access = true

# Parentheses preferences
dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity
dotnet_style_parentheses_in_other_binary_operators = always_for_clarity
dotnet_style_parentheses_in_other_operators = never_if_unnecessary
dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity

# Modifier preferences
dotnet_style_require_accessibility_modifiers = for_non_interface_members

# Expression-level preferences
dotnet_style_coalesce_expression = true
dotnet_style_collection_initializer = true
dotnet_style_explicit_tuple_names = true
dotnet_style_namespace_match_folder = true
dotnet_style_null_propagation = true
dotnet_style_object_initializer = true
dotnet_style_operator_placement_when_wrapping = beginning_of_line
dotnet_style_prefer_auto_properties = true:suggestion
dotnet_style_prefer_compound_assignment = true
dotnet_style_prefer_conditional_expression_over_assignment = true
dotnet_style_prefer_conditional_expression_over_return = true
dotnet_style_prefer_foreach_explicit_cast_in_source = when_strongly_typed
dotnet_style_prefer_inferred_anonymous_type_member_names = true
dotnet_style_prefer_inferred_tuple_names = true
dotnet_style_prefer_is_null_check_over_reference_equality_method = true
dotnet_style_prefer_simplified_boolean_expressions = true
dotnet_style_prefer_simplified_interpolation = true

# Field preferences
dotnet_style_readonly_field = true

# Parameter preferences
dotnet_code_quality_unused_parameters = all

# Suppression preferences
dotnet_remove_unnecessary_suppression_exclusions = none

# New line preferences
dotnet_style_allow_multiple_blank_lines_experimental = false
dotnet_style_allow_statement_immediately_after_block_experimental = true

#### C# Coding Conventions ####

# var preferences
csharp_style_var_elsewhere = false
csharp_style_var_for_built_in_types = false
csharp_style_var_when_type_is_apparent = true

# Expression-bodied members
csharp_style_expression_bodied_accessors = true
csharp_style_expression_bodied_constructors = when_on_single_line
csharp_style_expression_bodied_indexers = true
csharp_style_expression_bodied_lambdas = true
csharp_style_expression_bodied_local_functions = false
csharp_style_expression_bodied_methods = when_on_single_line
csharp_style_expression_bodied_operators = false
csharp_style_expression_bodied_properties = true

# Pattern matching preferences
csharp_style_pattern_matching_over_as_with_null_check = true
csharp_style_pattern_matching_over_is_with_cast_check = true
csharp_style_prefer_extended_property_pattern = true
csharp_style_prefer_not_pattern = true
csharp_style_prefer_pattern_matching = true
csharp_style_prefer_switch_expression = true

# Null-checking preferences
csharp_style_conditional_delegate_call = true

# Modifier preferences
csharp_prefer_static_local_function = true
csharp_preferred_modifier_order = public,private,protected,internal,file,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,required,volatile,async
csharp_style_prefer_readonly_struct = true

# Code-block preferences
csharp_prefer_braces = when_multiline
csharp_prefer_simple_using_statement = true
csharp_style_namespace_declarations = file_scoped:suggestion
csharp_style_prefer_method_group_conversion = false
csharp_style_prefer_top_level_statements = true

# Expression-level preferences
csharp_prefer_simple_default_expression = true
csharp_style_deconstructed_variable_declaration = true
csharp_style_implicit_object_creation_when_type_is_apparent = true
csharp_style_inlined_variable_declaration = true
csharp_style_prefer_index_operator = true
csharp_style_prefer_local_over_anonymous_function = true
csharp_style_prefer_null_check_over_type_check = true
csharp_style_prefer_range_operator = true
csharp_style_prefer_tuple_swap = true
csharp_style_prefer_utf8_string_literals = true
csharp_style_throw_expression = true
csharp_style_unused_value_assignment_preference = discard_variable
csharp_style_unused_value_expression_statement_preference = discard_variable

# 'using' directive preferences
csharp_using_directive_placement = outside_namespace

# New line preferences
csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = true
csharp_style_allow_blank_line_after_token_in_arrow_expression_clause_experimental = false
csharp_style_allow_blank_line_after_token_in_conditional_expression_experimental = false
csharp_style_allow_blank_lines_between_consecutive_braces_experimental = true
csharp_style_allow_embedded_statements_on_same_line_experimental = true

#### C# Formatting Rules ####

# New line preferences
csharp_new_line_before_catch = true
csharp_new_line_before_else = true
csharp_new_line_before_finally = true
csharp_new_line_before_members_in_anonymous_types = true
csharp_new_line_before_members_in_object_initializers = true
csharp_new_line_before_open_brace = all
csharp_new_line_between_query_expression_clauses = true

# Indentation preferences
csharp_indent_block_contents = true
csharp_indent_braces = false
csharp_indent_case_contents = true
csharp_indent_case_contents_when_block = false
csharp_indent_labels = one_less_than_current
csharp_indent_switch_labels = true

# Space preferences
csharp_space_after_cast = false
csharp_space_after_colon_in_inheritance_clause = true
csharp_space_after_comma = true
csharp_space_after_dot = false
csharp_space_after_keywords_in_control_flow_statements = true
csharp_space_after_semicolon_in_for_statement = true
csharp_space_around_binary_operators = before_and_after
csharp_space_around_declaration_statements = false
csharp_space_before_colon_in_inheritance_clause = true
csharp_space_before_comma = false
csharp_space_before_dot = false
csharp_space_before_open_square_brackets = false
csharp_space_before_semicolon_in_for_statement = false
csharp_space_between_empty_square_brackets = false
csharp_space_between_method_call_empty_parameter_list_parentheses = false
csharp_space_between_method_call_name_and_opening_parenthesis = false
csharp_space_between_method_call_parameter_list_parentheses = false
csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
csharp_space_between_method_declaration_name_and_open_parenthesis = false
csharp_space_between_method_declaration_parameter_list_parentheses = false
csharp_space_between_parentheses = false
csharp_space_between_square_brackets = false

# Wrapping preferences
csharp_preserve_single_line_blocks = true
csharp_preserve_single_line_statements = false

#### Naming styles ####

# Naming rules

dotnet_naming_rule.interface_should_be_i_pascal_case.severity = warning
dotnet_naming_rule.interface_should_be_i_pascal_case.symbols = interface
dotnet_naming_rule.interface_should_be_i_pascal_case.style = i_pascal_case

dotnet_naming_rule.types_namespace_methods_should_be_pascal_case.severity = suggestion
dotnet_naming_rule.types_namespace_methods_should_be_pascal_case.symbols = types_namespace_methods
dotnet_naming_rule.types_namespace_methods_should_be_pascal_case.style = pascal_case

dotnet_naming_rule.public_protected_internal_prot_properties_and_fields_should_be_pascal_case.severity = suggestion
dotnet_naming_rule.public_protected_internal_prot_properties_and_fields_should_be_pascal_case.symbols = public_protected_internal_prot_properties_and_fields
dotnet_naming_rule.public_protected_internal_prot_properties_and_fields_should_be_pascal_case.style = pascal_case

dotnet_naming_rule.private_or_internal_field_should_be___camel_case.severity = suggestion
dotnet_naming_rule.private_or_internal_field_should_be___camel_case.symbols = private_or_internal_field
dotnet_naming_rule.private_or_internal_field_should_be___camel_case.style = __camel_case

dotnet_naming_rule.private_or_internal_static_field_should_be_s__camel_case.severity = suggestion
dotnet_naming_rule.private_or_internal_static_field_should_be_s__camel_case.symbols = private_or_internal_static_field
dotnet_naming_rule.private_or_internal_static_field_should_be_s__camel_case.style = s__camel_case

dotnet_naming_rule.method_parameter_should_be_camal_case.severity = suggestion
dotnet_naming_rule.method_parameter_should_be_camal_case.symbols = method_parameter
dotnet_naming_rule.method_parameter_should_be_camal_case.style = camal_case

dotnet_naming_rule.async_methods_should_be_pascal_case_async.severity = suggestion
dotnet_naming_rule.async_methods_should_be_pascal_case_async.symbols = async_methods
dotnet_naming_rule.async_methods_should_be_pascal_case_async.style = pascal_case_async

dotnet_naming_rule.type_parameter_should_be_t_pascal_case.severity = suggestion
dotnet_naming_rule.type_parameter_should_be_t_pascal_case.symbols = type_parameter
dotnet_naming_rule.type_parameter_should_be_t_pascal_case.style = t_pascal_case

dotnet_naming_rule.local_should_be_camal_case.severity = suggestion
dotnet_naming_rule.local_should_be_camal_case.symbols = local
dotnet_naming_rule.local_should_be_camal_case.style = camal_case

# Symbol specifications

dotnet_naming_symbols.interface.applicable_kinds = interface
dotnet_naming_symbols.interface.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.interface.required_modifiers = 

dotnet_naming_symbols.private_or_internal_field.applicable_kinds = field
dotnet_naming_symbols.private_or_internal_field.applicable_accessibilities = internal, private, private_protected
dotnet_naming_symbols.private_or_internal_field.required_modifiers = 

dotnet_naming_symbols.private_or_internal_static_field.applicable_kinds = field
dotnet_naming_symbols.private_or_internal_static_field.applicable_accessibilities = internal, private, private_protected
dotnet_naming_symbols.private_or_internal_static_field.required_modifiers = static

dotnet_naming_symbols.types_namespace_methods.applicable_kinds = namespace, class, struct, interface, enum, method, local_function
dotnet_naming_symbols.types_namespace_methods.applicable_accessibilities = *
dotnet_naming_symbols.types_namespace_methods.required_modifiers = 

dotnet_naming_symbols.public_protected_internal_prot_properties_and_fields.applicable_kinds = property, field, event, local, method, local_function
dotnet_naming_symbols.public_protected_internal_prot_properties_and_fields.applicable_accessibilities = public, protected, protected_internal
dotnet_naming_symbols.public_protected_internal_prot_properties_and_fields.required_modifiers = 

dotnet_naming_symbols.method_parameter.applicable_kinds = parameter
dotnet_naming_symbols.method_parameter.applicable_accessibilities = *
dotnet_naming_symbols.method_parameter.required_modifiers = 

dotnet_naming_symbols.async_methods.applicable_kinds = method, local_function
dotnet_naming_symbols.async_methods.applicable_accessibilities = *
dotnet_naming_symbols.async_methods.required_modifiers = async

dotnet_naming_symbols.type_parameter.applicable_kinds = type_parameter
dotnet_naming_symbols.type_parameter.applicable_accessibilities = *
dotnet_naming_symbols.type_parameter.required_modifiers = 

dotnet_naming_symbols.local.applicable_kinds = local
dotnet_naming_symbols.local.applicable_accessibilities = local
dotnet_naming_symbols.local.required_modifiers = 

# Naming styles

dotnet_naming_style.pascal_case.required_prefix = 
dotnet_naming_style.pascal_case.required_suffix = 
dotnet_naming_style.pascal_case.word_separator = 
dotnet_naming_style.pascal_case.capitalization = pascal_case

dotnet_naming_style.i_pascal_case.required_prefix = I
dotnet_naming_style.i_pascal_case.required_suffix = 
dotnet_naming_style.i_pascal_case.word_separator = 
dotnet_naming_style.i_pascal_case.capitalization = pascal_case

dotnet_naming_style.camal_case.required_prefix = 
dotnet_naming_style.camal_case.required_suffix = 
dotnet_naming_style.camal_case.word_separator = 
dotnet_naming_style.camal_case.capitalization = camel_case

dotnet_naming_style.__camel_case.required_prefix = _
dotnet_naming_style.__camel_case.required_suffix = 
dotnet_naming_style.__camel_case.word_separator = 
dotnet_naming_style.__camel_case.capitalization = camel_case

dotnet_naming_style.s__camel_case.required_prefix = s_
dotnet_naming_style.s__camel_case.required_suffix = 
dotnet_naming_style.s__camel_case.word_separator = 
dotnet_naming_style.s__camel_case.capitalization = camel_case

dotnet_naming_style.pascal_case_async.required_prefix = 
dotnet_naming_style.pascal_case_async.required_suffix = Async
dotnet_naming_style.pascal_case_async.word_separator = 
dotnet_naming_style.pascal_case_async.capitalization = pascal_case

dotnet_naming_style.t_pascal_case.required_prefix = T
dotnet_naming_style.t_pascal_case.required_suffix = 
dotnet_naming_style.t_pascal_case.word_separator = 
dotnet_naming_style.t_pascal_case.capitalization = pascal_case