[ROOT] doc DocFrag SELECT Assembly, DocFragType, Description.FirstLine() < SKIP 998 > < TAKE 768 >

179 items

DocFragId	Assembly	DocFragType	Description.FirstLine()
ARCAPI.DataStorage.Storage	ARCAPI	ClassMember	The actual storage.
ARCQuery.FunctionKeyWeek.TryGetP	ARCQuery	ClassMember	NOTE: The in-parameter is a property, not an entity.
ARCAPI.DataStorage.ControllerStorage	ARCAPI	ClassMember	Usually (but not always) a branch of -Storage- (like Storage["log"]["{nodeId}"]["Controller"]).
ARCQuery.FunctionKeyWeek.SyntaxHelp	ARCQuery	ClassMember	'Week()'
ARCAPI.DataStorage.DocLinks	ARCAPI	ClassMember	Note that may be null.
ARCQuery.FunctionKeyYear	ARCQuery	Class	Extracts Year-component from field.
ARCAPI.DataStorage.Lock	ARCAPI	ClassMember	Locking object for thread-safe access from simultaneous API requests.
ARCQuery.FunctionKeyYear.TryGetP	ARCQuery	ClassMember	NOTE: The in-parameter is a property, not an entity.
ARCAPI.DataStorage.ExternalReceiver	ARCAPI	ClassMember	Typically used by -AddController-.
ARCQuery.FunctionKeyYear.SyntaxHelp	ARCQuery	ClassMember	'Year()'
ARCAPI.DataStorage.DoNotStoreInternally	ARCAPI	ClassMember	Typically used by -AddController-.
ARCQuery.FunctionKeyYearMonth	ARCQuery	Class	Extracts Year + Month component from field like 2020-06.
ARCAPI.BaseControllerP	ARCAPI	Enum	Describes class -BaseController-.
ARCQuery.FunctionKeyYearMonth.TryGetP	ARCQuery	ClassMember	NOTE: The in-parameter is a property, not an entity.
ARCAPI.BaseControllerP.CountRequest	ARCAPI	EnumMember	Number of calls to -APIMethod- since application initialization
ARCQuery.FunctionKeyYearMonth.SyntaxHelp	ARCQuery	ClassMember	'YearMonth()'
ARCAPI.BaseControllerP.CountException	ARCAPI	EnumMember	Number of exceptions at call to -APIMethod- since application initialization
ARCQuery.FunctionKeyYearQuarter	ARCQuery	Class	Extracts Year + Quarter component from field like 2020Q1.
ARCAPI.BaseControllerP.LogLevel	ARCAPI	EnumMember
ARCQuery.FunctionKeyYearQuarter.TryGetP	ARCQuery	ClassMember	NOTE: The in-parameter is a property, not an entity.
ARCAPI.ResponseFormat	ARCAPI	Enum	The response format, HTML or JSON, for an API request.
ARCQuery.FunctionKeyYearQuarter.SyntaxHelp	ARCQuery	ClassMember	'YearQuarter()'
ARCAPI.ResponseFormat.JSON	ARCAPI	EnumMember
ARCQuery.FunctionKeyYearWeek	ARCQuery	Class	Extract year and week number from field according to ISO 8601 like '2021-51'
ARCAPI.ResponseFormat.HTML	ARCAPI	EnumMember
ARCQuery.FunctionKeyYearWeek.TryGetP	ARCQuery	ClassMember	NOTE: The in-parameter is a property, not an entity.
Assembly AgoBrowse		Assembly
ARCQuery.FunctionKeyYearWeek.SyntaxHelp	ARCQuery	ClassMember	'YearWeek()'
AgoBrowse.Program	AgoBrowse	Class
ARCQuery.NewKey	ARCQuery	Class	A function creating new keys (new fields) that can be used against all object types in AgoRapide (against all entities).
AgoBrowse.Program.InitStreamProcessor	AgoBrowse	ClassMember	Initializes stream processor.
ARCQuery.NewKey.AddParser	ARCQuery	ClassMember	Adds an -ApplicationSpecificCode- parser.
AgoBrowse.Root	AgoBrowse	Class	Contains the user friendly welcome text (front page) for the application.
ARCQuery.NewKey.TryParse	ARCQuery	ClassMember	Find parsers from -Parsers- based on first word in query.
AgoBrowse.Root.ToHTMLSimpleSingle	AgoBrowse	ClassMember	Alternative ('override') to -ToHTMLSimpleSingle-.
ARCQuery.NewKeyToPropertyStream.TryGetP	ARCQuery	ClassMember	The outwards facing executor, understanding use of -FunctionKeys-.
ARCQuery.NewKeyToPropertyStream.SyntaxHelp	ARCQuery	ClassMember	'ToPropertyStream()'
ARCQuery.NewKeyToPropertyStream.FunctionKeys	ARCQuery	ClassMember	All -FunctionKey-s chained at end of compound key (but before an eventual -QuantileKey-).
ARCQuery.NewKeyToPropertyStream.QuantileKey	ARCQuery	ClassMember	Eventual final -QuantileKey- at end of compound key.
ARCQuery.QuantileKey	ARCQuery	Class	Can separate entities into quantiles, like Quartiles, Quintiles or Sextiles.
ARCQuery.QuantileKey.TryGetP	ARCQuery	ClassMember	Returns an integer with the number of the quantile group for the value returned by the given -CompoundKey-).
ARCQuery.QuantileKey.TryParse	ARCQuery	ClassMember	Note that any value (positive integer greated than 2) is accepted, not necessarily only string-representations of enums within -Quantile-.
ARCQuery.Query	ARCQuery	Class	Keeps track of progress of query, and the interim result.
ARCQuery.Query.ShouldTerminate	ARCQuery	ClassMember	Attempts to explain problem, in -TerminateReason- and by logging.
ARCQuery.Query.ExecuteOne	ARCQuery	ClassMember	NOTE: Note how avoids deferred execution in order to always correctly time execution of each query element separately.
ARCQuery.Query.AllLogEntriesForThisQuery	ARCQuery	ClassMember	Temporary storage of log information.
ARCQuery.Query.Progress	ARCQuery	ClassMember	Use of member class in order for -Query- not to inherit -IP-.
ARCQuery.QueryExpression	ARCQuery	Class	Represents part of a query (or actually a transformation) against a given collection and the data storage from which it was taken.
ARCQuery.QueryExpression.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpression.AddParser	ARCQuery	ClassMember	Adds a -ApplicationSpecificCode- parser.
ARCQuery.QueryExpression.TryParse	ARCQuery	ClassMember	Find parsers from -Parsers- based on first word in query.
ARCQuery.QueryExpression.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpression.Parsers	ARCQuery	ClassMember	Parsers for all the relevant sub classes of -QueryExpression-.
ARCQuery.QueryExpressionWithSuggestions	ARCQuery	Class	Keeps track as each query item gets executed.
ARCQuery.QueryExpressionWithSuggestions.Previous	ARCQuery	ClassMember	Suggestion for a 'browse backwards' button.
ARCQuery.QueryExpressionWithSuggestions.Next	ARCQuery	ClassMember	Suggestion for a 'browse forwards' button.
ARCQuery.QueryExpressionAggregate	ARCQuery	Class	Aggregates over the given key.
ARCQuery.QueryExpressionAggregate.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionAggregate.IsSuitableAggregator	ARCQuery	ClassMember	Returns true if
ARCQuery.QueryExpressionAggregate.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionAggregate.SyntaxHelp	ARCQuery	ClassMember	1) 'AGGREGATE {rowKey}' like "AGGREGATE Product"
ARCQuery.QueryExpressionAggregate.AggregationType	ARCQuery	ClassMember	Most common value is -Count-, in which case -AggregationKey- may be correspondingly set to null.
ARCQuery.QueryExpressionAggregate.AggregationKey	ARCQuery	ClassMember	This is often null (with -AggregationType- correspondingly set to Count-).
ARCQuery.QueryExpressionAll	ARCQuery	Class	Represents all entities for a given collection.
ARCQuery.QueryExpressionAll.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionAll.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionAll.SyntaxHelp	ARCQuery	ClassMember	'ALL' (literally).
ARCQuery.QueryExpressionPivot.GetCrossSummationChecker	ARCQuery	ClassMember	Returns a cross sum checker for int, long, double, Timespan.
ARCQuery.QueryExpressionPivot.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionPivot.SyntaxHelp	ARCQuery	ClassMember	1) 'PIVOT {rowKey} BY {columnKey}' like "PIVOT Colour BY Production.Year"
ARCQuery.QueryExpressionPivot.AggregationType	ARCQuery	ClassMember	Most common value is -Count-, in which case -AggregationKey- may be correspondingly set to null.
ARCQuery.QueryExpressionPivot.AggregationKey	ARCQuery	ClassMember	This is often null (with -AggregationType- correspondingly set to Count-).
ARCQuery.QueryExpressionRel	ARCQuery	Class	Enables 'jumping' or 'travelling' from a collection of one entity type to another (related) entity type.
ARCQuery.QueryExpressionRel.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionRel.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionRel.SyntaxHelp	ARCQuery	ClassMember	'REL {type}'
ARCQuery.QueryExpressionRel.StrType	ARCQuery	ClassMember	In the simplest terms, the -ToStringVeryShort- representation of the type that we are 'jumping' to.
ARCQuery.QueryExpressionSelect	ARCQuery	Class	Selects which fields to include.
ARCQuery.QueryExpressionSelect.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionSelect.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionSelect.SyntaxHelp	ARCQuery	ClassMember	SELECT {field-1}, {field-2} ... {field-n}
ARCQuery.QueryExpressionSelfCreate	ARCQuery	Class	Returns self created collection from given class type.
ARCQuery.QueryExpressionSelfCreate.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionSelfCreate.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionSelfCreate.SyntaxHelp	ARCQuery	ClassMember	SELFCREATE {Type supporting ISelfCreateCollection}'
ARCQuery.QueryExpressionShuffle	ARCQuery	Class	Shuffles collection in random order.
ARCQuery.QueryExpressionShuffle.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionShuffle.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionShuffle.SyntaxHelp	ARCQuery	ClassMember	SHUFFLE
ARCQuery.QueryExpressionSkip	ARCQuery	Class	Skips the specified number of elements from the current query result.
ARCQuery.QueryExpressionSkip.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionSkip.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionSkip.SyntaxHelp	ARCQuery	ClassMember	SKIP {Count} like 'SKIP 42'
ARCQuery.QueryExpressionStrict	ARCQuery	Class	Describes -Strictness- ON / OFF when executing query.
ARCQuery.QueryExpressionStrict.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.QueryExpressionStrict.TryCheckForExistenceOfKey	ARCQuery	ClassMember	Used by query expressions in order to catch wrong field names used or misspelling of field names.
ARCQuery.QueryExpressionStrict.SyntaxHelp	ARCQuery	ClassMember	STRICT {strictnessLevel}
ARCQuery.QueryExpressionTake	ARCQuery	Class	Takes a specific number of elements from the current query result.
ARCQuery.QueryExpressionTake.Execute	ARCQuery	ClassMember	Transforms the given input collection into a resulting collection.
ARCQuery.TranslationsCollection.GetKeysEqualToValue	ARCQuery	ClassMember	Returns properties which themselves again have key and value equal to the given key and value.
ARCQuery.TranslationsCollection.TryGetP	ARCQuery	ClassMember	Made virtual 13 Jan 2022. Possibly the same could be done for all other methods here since _properties is Protected anyway.
ARCQuery.TranslationsCollection.TryGetV	ARCQuery	ClassMember	Note that 'normally' this method would be irrelevant for a -PRich- object because we will usually be an entity object (like 'Customer') not having an intrinsic value ourselves per se (because we will instead be containing a list of values).
ARCQuery.TranslationsCollection.ToString	ARCQuery	ClassMember	TODO: Decide on what we actually want with ToString for this class.
ARCQuery.TranslationSingle	ARCQuery	Class	Describes a single translation.
ARCQuery.TranslationSingle.TryGetReferenceCount	ARCQuery	ClassMember	Method signature understood by -TryGetP- / -EntityMethodKey-.
ARCQuery.TranslationSingle.TryGetPS	ARCQuery	ClassMember	Returns a -PropertyStreamLine- representation of this translation.
ARCQuery.TranslationSingle.TryGetA	ARCQuery	ClassMember	Returns a -PropertyStreamLine- representation of this translation.
ARCQuery.TranslationSingle.TryGetMacro	ARCQuery	ClassMember	Returns a -PropertyStream- representation of this translation.
ARCQuery.TranslationSingle.TryGetP	ARCQuery	ClassMember	Made virtual 13 Jan 2022. Possibly the same could be done for all other methods here since _properties is Protected anyway.
ARCQuery.TranslationSingle.TryGetV	ARCQuery	ClassMember	Note that 'normally' this method would be irrelevant for a -PRich- object because we will usually be an entity object (like 'Customer') not having an intrinsic value ourselves per se (because we will instead be containing a list of values).
ARCQuery.TranslationSingle.ToString	ARCQuery	ClassMember	TODO: Decide on what we actually want with ToString for this class.
ARCQuery.TranslationSingle.ReferenceCount	ARCQuery	ClassMember	May be set from outside, for instance with System.Threading.Interlocked.Increment.
ARCQuery.UtilQuery	ARCQuery	Class	Utility methods for -ARCQuery-.
ARCQuery.UtilQuery.IndexOfOutsideOf	ARCQuery	ClassMember	Equivalent to string.IndexOf except that any character encountered inside pairs of the 'outsideOf'-char are not counted.
ARCQuery.UtilQuery.IndexOfAnyOutsideOf	ARCQuery	ClassMember	Equivalent to string.IndexOfAny except that any character encountered inside pairs of the 'outsideOf'-char are not counted.
ARCQuery.UtilQuery.SplitOutsideOf	ARCQuery	ClassMember	Equivalent to string.Split except that any character encountered inside pairs of the 'outsideOf'-char are not counted as separators.
ARCQuery.UtilQuery.SpecialLinkPrefixes	ARCQuery	ClassMember	Contains prefixes for which links (see -LinkInsertionInDocumentation-) are also desired without the prefix.
ARCQuery.ValueComparer	ARCQuery	Class	Can evaluation expressions like 'WHERE Created = ThisYear.
ARCQuery.ValueComparer.TryGetPrevious	ARCQuery	ClassMember	Suggestion for previous query (browsing 'backwards')
ARCQuery.ValueComparer.TryGetNext	ARCQuery	ClassMember	Suggestion for next query (browsing 'forwards')
ARCQuery.ValueComparerDateTime	ARCQuery	Class	-ValueComparerDateTime- is an attempt at offering a human language interface for date and time queries.
ARCQuery.ValueComparerDateTime.TryGetPrevious	ARCQuery	ClassMember	Suggestion for previous query (browsing 'backwards')
ARCQuery.ValueComparerDateTime.TryGetNext	ARCQuery	ClassMember	Suggestion for next query (browsing 'forwards')
ARCQuery.ValueComparerDateTime.TryParse	ARCQuery	ClassMember	Note: This parser is probably exhaustive but not necessarily logical
ARCQuery.ValueComparerDateTime.Resolution	ARCQuery	ClassMember	See -ResolutionEnum-.
ARCQuery.ValueComparerDateTime.Steps	ARCQuery	ClassMember	Value 0 would mean 'This', like ThisHour, Today, ThisMonth and so on.
ARCQuery.ValueComparerDateTime.IsGliding	ARCQuery	ClassMember	The modifier 'Gliding' (or just 'G') can be appended in order to mean continous gliding periode, so for instance
ARCQuery.ValueComparerDateTime.IsBefore	ARCQuery	ClassMember	The modifier 'Before' can be prepended in order to mean from any time before the specified time.
ARCQuery.ValueComparerDateTime.IsAfter	ARCQuery	ClassMember	The modifier 'After' can be prepended in order to mean any time after the specified time.
ARCQuery.ValueComparerDateTime.IsInterval	ARCQuery	ClassMember	Normally the interval which is compared against is the timespan corresponding to -Resolution-.
ARCQuery.ValueComparerDateTime.InitValue	ARCQuery	ClassMember	For debugging purposes. The initial 'now' value used before calculating -StartPeriod- and -EndPeriod-.
ARCQuery.EntityMethodKey+MethodType.Complex	ARCQuery	EnumMember	Signature like 'bool TryGet{KeyName}(IP dataStorage, IK thisKey, out IP retval, out string errorResponse)'
ARCQuery.QueryExpressionWhere+WildcardPositionType	ARCQuery	Enum	Position of wildcard in value, like 'ABC' (-AtStart-), 'ABC' (-AtEnd-) and
ARCQuery.QueryExpressionWhere+WildcardPositionType.AtStart	ARCQuery	EnumMember	Example: '*ABC'.
ARCQuery.QueryExpressionWhere+WildcardPositionType.AtEnd	ARCQuery	EnumMember	Example: 'ABC*'.
ARCQuery.QueryExpressionWhere+WildcardPositionType.AtStartAndEnd	ARCQuery	EnumMember	Example: 'ABC'.
ARCQuery.QueryExpressionWhere+ValueEnum	ARCQuery	Enum	Helper enum used internally by -QueryExpressionWhere- in order to represent queries like WHERE Name = NULL, WHERE Name = NOTNULL and WHERE Name = * (ALL).
ARCQuery.QueryExpressionWhere+ValueEnum.NULL	ARCQuery	EnumMember
ARCQuery.QueryExpressionWhere+ValueEnum.NOTNULL	ARCQuery	EnumMember	Practical value enabling suggestions from -GetPrevious- and -GetNext-.
ARCQuery.QueryExpressionWhere+ValueEnum.ALL	ARCQuery	EnumMember	Equivalent to query like WHERE Name = *
ARCQuery.ValueComparerDateTime+ResolutionEnum	ARCQuery	Enum
ARCQuery.ValueComparerDateTime+ResolutionEnum.Second	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Minute	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Hour	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Day	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Week	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Month	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Quarter	ARCQuery	EnumMember
ARCQuery.ValueComparerDateTime+ResolutionEnum.Year	ARCQuery	EnumMember
Assembly ARCAPI		Assembly	A library providing an API on top of the -PropertyStream-.
ARCAPI.ContentResult	ARCAPI	Class	Mimicks Microsoft.AspNetCore.Mvc.ContentResult.
ARCAPI.ContentResult.CreateHTMLOK	ARCAPI	ClassMember	NOTE: Parameter must be a complete HTML page.
ARCAPI.ContentResult.CreateError	ARCAPI	ClassMember	TODO: Add a key / value format for error messages, like done for -Log-.
ARCAPI.AddController	ARCAPI	Class	Parses and stores a -PropertyStreamLine-.
ARCAPI.AddController.APIMethod	ARCAPI	ClassMember	The (only) API method that this controller supports.
ARCAPI.AddController.ToString	ARCAPI	ClassMember	TODO: Decide on what we actually want with ToString for this class.
ARCAPI.AddController.AllowFilter	ARCAPI	ClassMember	Describes what data is allowed to change through a list of -Subscription- instances.
ARCAPI.BaseController	ARCAPI	Class	Contains basic functionality for serving API methods.
ARCAPI.BaseController.BuildControllerStorage	ARCAPI	ClassMember	Builds a collection of 'std' (standard) controller instances to use for serving API requests.
ARCAPI.BaseController.APIMethod	ARCAPI	ClassMember	The (only) API method that this controller supports.
ARCAPI.BaseController.CatchAll	ARCAPI	ClassMember	Serves the typical single generic API method in an AgoRapide API.
ARCAPI.BaseController.TryNavigateToLevelInDataStorage	ARCAPI	ClassMember	Navigates to the specified level (usually within -Storage-).
ARCAPI.BaseController.GetFormatAndAdjustRequest	ARCAPI	ClassMember	Decides -ResponseFormat- (like HTML, JSON, CSV, PDF and so on).
AgoBrowse.Root.TryGetP	AgoBrowse	ClassMember	Made virtual 13 Jan 2022. Possibly the same could be done for all other methods here since _properties is Protected anyway.
AgoBrowse.Root.TryGetV	AgoBrowse	ClassMember	Note that 'normally' this method would be irrelevant for a -PRich- object because we will usually be an entity object (like 'Customer') not having an intrinsic value ourselves per se (because we will instead be containing a list of values).
AgoBrowse.Root.ToString	AgoBrowse	ClassMember	TODO: Decide on what we actually want with ToString for this class.
AgoBrowse.Controllers.CompileController	AgoBrowse	Class	Compiles a hierarchical 'picture book' from the requested position in the -DataStorage-.
AgoBrowse.Controllers.CompileController.APIMethod	AgoBrowse	ClassMember	The (only) API method that this controller supports.
AgoBrowse.Controllers.CompileController.Compile	AgoBrowse	ClassMember	Compiles a hierarchical 'picture book' from the given parameter.
AgoBrowse.Controllers.CompileController.ToString	AgoBrowse	ClassMember	TODO: Decide on what we actually want with ToString for this class.
AgoBrowse.Controllers.ControllerFacade	AgoBrowse	Class	Facade for entry into the desired -RQController-.
AgoBrowse.Controllers.ControllerFacade.CatchAll Overload2	AgoBrowse	ClassMember	Catches all HTTP GET requests to this API.
AgoBrowse.Controllers.ControllerFacade.CatchAll Overload1	AgoBrowse	ClassMember	Catches all HTTP POST requests to this API.
Namespace ARCCore		Namespace	A necessary library (.DLL in Windows terms) that every -ARNodeType- should link to.
Namespace ARCDoc		Namespace	A library supporting documentation and demonstrating usage of AgoRapide.
Namespace ARCQuery		Namespace	ARCQuery provides a query language that mimicks SQL but is usable through HTTP as GET URLs.
Namespace ARCAPI		Namespace	A library providing an API on top of the -PropertyStream-.
Namespace AgoBrowse		Namespace
Namespace AgoBrowse.Controllers		Namespace

Generated 2025-06-22 18:53:30.311 UTC