c2n/web-componentsv1.0.26
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OverviewGetting startedComponentsIconsGuidesExamplesBlogs
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Pivot table

Summarises flat rows by the fields set on rows and columns, with subtotals, totals, sorting, a heatmap and a field list.

Attributes

NameTypeDefaultDescription
dataunknown[][]The rows to summarise.
rowsstring[][]The fields grouped down the side, outermost first.
columnsstring[][]The fields grouped across the top, outermost first.
valuesPivotValue[][]The measures: { field, aggregate, label, format }.
invert-signsRecord<string, string[]>{}Row groups whose numbers count with the opposite sign, by field: { "section": ["Expenses", "Taxes"] }. They show negative and subtract in every subtotal and total above them, as costs do under revenue in an income statement.
field-labelsRecord<string, string>{}Labels for fields, by field name, used in headers and the field list.
expand-depthnumber1How many row levels start open.
subtotals'bottom' | 'top' | 'none'bottomWhere an open group's subtotal goes: bottom, top or none.
totals'both' | 'rows' | 'columns' | 'none'bothWhich grand totals to show: both, rows, columns or none.
heatmapbooleanfalseTints each cell by its value within its measure.
configurablebooleanfalseShows the field list, so the reader can change the layout.
labelstring—The grid's accessible name.
localestring—The locale for numbers; the nearest lang when empty.

Events

NameTypeDescription
cell-clickCustomEvent<PivotCellClickEventDetail>A value cell was clicked, or Enter was pressed on it.
pivot-changeCustomEvent<PivotConfig>The reader changed the layout from the field list.

CSS parts

Shadow DOM styling hooks used with ::part(name). Prefer CSS custom properties when they cover the change.

NameDescription
field-listThe field list beside the grid.
chipA field in the field list.
scrollThe box the grid scrolls in.
tableThe grid.
headerA column header.
row-headerA row header.
cellA value cell.

CSS custom properties

Grouped by semantic target and state from --c2-<component>__<target>__<state>--<property>. Click a group to collapse it; click a name to copy it.

NameTypeDefaultDescription
c2-pivot-table
--c2-pivot-table--max-heightlengthnoneThe grid scrolls past this height, its headers sticky.
--c2-pivot-table--font-sizefont-size13px
--c2-pivot-table--colorcolor#18181b
--c2-pivot-table--background-colorcolor#ffffff
--c2-pivot-table--border-radiusborder-radius8px
c2-pivot-table > border
--c2-pivot-table__border--colorcolor#e4e4e7
c2-pivot-table > cell
--c2-pivot-table__cell--paddingpadding6px 12px
c2-pivot-table > header
--c2-pivot-table__header--background-colorcolor#fafafa
--c2-pivot-table__header--colorcolor#18181b
c2-pivot-table > subtotal
--c2-pivot-table__subtotal--background-colorcolor#fafafa
c2-pivot-table > total
--c2-pivot-table__total--background-colorcolor#f4f4f5
--c2-pivot-table__total--font-weightfont-weight600
c2-pivot-table > muted
--c2-pivot-table__muted--colorcolor#71717aEmpty cells and the corner header.
c2-pivot-table > focus
--c2-pivot-table__focus--outline-colorcolorrgb(2, 101, 220)
c2-pivot-table > heat
--c2-pivot-table__heat--colorcolorrgb(2, 101, 220)The darkest heatmap tint.
--c2-pivot-table__heat--on-colorcolor#ffffffText on the darker heatmap tints.
c2-pivot-table > indent
--c2-pivot-table__indent--widthlength20pxThe indent of each row level.
c2-pivot-table > field-list
--c2-pivot-table__field-list--widthpixel220px
c2-pivot-table > chip
--c2-pivot-table__chip--background-colorcolor#ffffff
--c2-pivot-table__chip--borderborder1px solid #e4e4e7
c2-pivot-table > zone
c2-pivot-table > zone > over
--c2-pivot-table__zone__over--background-colorcolorrgba(2, 101, 220, 0.06)
c2-pivot-table > computed
c2-pivot-table > computed > negative
--c2-pivot-table__computed__negative--colorcolorinheritA computed value below zero, such as an unfavourable variance.
c2-pivot-table > computed > positive
--c2-pivot-table__computed__positive--colorcolorinheritA computed value above zero.

Text and languages

The text the component shows, in English. It shows another language when the app adds one with addTranslations, under pivot-table, and the nearest lang asks for it; any message not translated stays in English. {0}, {1}… stand for the values a message carries. Languages guide.

KeyEnglishValues
tablePivot table—
totalTotal—
grandTotalGrand total—
groupTotal{0} total{0} group
valueOf{0} of {1}{0} aggregate
{1} field
sumSum—
countCount—
avgAverage—
minMin—
maxMax—
distinctDistinct count—
computedOf{0}: {1} vs {2}{0} compute
{1} a
{2} b
differenceDifference—
percent-difference% difference—
ratioRatio—
fieldsFields—
rowsRows—
columnsColumns—
valuesValues—
fieldListPivot fields—
moveToRowsMove to rows—
moveToColumnsMove to columns—
moveToValuesMove to values—
removeRemove—
fieldOptionsOptions for {0}{0} field
layoutRows: {0}. Columns: {1}. Values: {2}.{0} rows
{1} columns
{2} values
nonenone—
emptyNo data—
sortBySort by {0}{0} column
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file to split it into rows, mask secret values, and flag duplicate or malformed keys.InputsKeypadA phone-style numeric keypad that types an amount, fills PIN dots or drives another field, with a slot for a biometric key.InputsLabelCaption that names and activates the control referenced by its for attribute, with a required marker.InputsLine chartA line chart over a time or numeric x axis, drawn on canvas by uPlot, with series declared as children.ChartLink ButtonText-styled control for link and navigation actions, rendered as a real anchor or a button.NavigationListVertical list container with single or multiple selection.Data displayList ItemSelectable row with icon slots, used on its own, as the option of list and select, or as a navigation link with collapsible groups.Data displayLoading OverlayCovers a region while it loads: the content stays in place, dimmed and blocked, with a spinner and an announced label.FeedbackLog ViewerExplore large logs with variable-height virtual scrolling and sticky tabular attributes.Editors & viewersMap chartA choropleth and point map on vector outlines, drawn by ECharts: regions shaded by a value, with layers of sized points and flow lines, on the bundled world and US maps or your own GeoJSON, TopoJSON or SVG.ChartMarkdownSafe markdown renderer that streams: chat answers and READMEs, with code, math and diagrams.ChatMarkerAn inline marker that highlights, underlines, strikes through, boxes or circles a run of text.Data displayMarqueeA strip that scrolls its items in a continuous loop, for logo walls, testimonials and ticker tapes.LayoutMask InputA text input that fits what is typed to a pattern, for postcodes, IBANs, tax IDs, expiry dates and other fixed formats.InputsMasonryAutomatically pack differently sized dashboard tiles, then move or resize them in edit mode.LayoutMaster DetailA list beside the record it opens, one pane at a time with a Back step when the element is narrow.LayoutMathTeX formulas rendered as native 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as wide as what it carries.ChartSave BarA floating bar that appears while a form has unsaved changes, with Discard and Save.LayoutScatter chartAn ECharts scatter plot for finding relationships, clusters and outliers across two numeric measures.ChartSchedulerResource timeline: people, rooms or machines down the side, time across the top, each booking a bar you can drag.PlanningScroll AreaA scroll container with themed scrollbars and shadows on the edges with more content beyond them.LayoutScroll ProgressHow far the reader got: a bar that fills or a ring that closes as the page or a container scrolls.FeedbackSearch FieldA search box with a debounced search event, a clear button, a keyboard shortcut hint and recent searches.InputsSecret FieldShows an API key or other secret masked, with buttons to reveal it, copy it and ask for a new one.InputsSelectDropdown that pairs a themeable trigger with an anchored list of c2-list-item options.InputsSelection ToolbarA toolbar that appears over the text a reader selects: Ask AI, Comment, Bold, or any action the app slots in.Editors & viewersSeparatorHorizontal or vertical rule with an optional label, for dividing content and toolbars.LayoutShare SheetShare a link anywhere: copy it, send it to email or a network, scan it as a QR code, or hand it to the device’s own share sheet.FeedbackSheetDialog pinned to an edge of the screen, for content that complements the page rather than interrupting it.FeedbackShortcutKeyboard shortcuts for a whole application from one element: each binding fires an action event, runs a handler or activates a target.InputsSide NavResponsive navigation drawer beside the page: pushes the content on large screens, slides over it with a backdrop on small ones.NavigationSignature PadA box to sign in with a mouse, a pen or a finger, with undo and clear, that exports the signature as SVG or an image.InputsSkeletonPlaceholder block standing in for content that has not arrived, in three shapes and three 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power.ChartStatus LightColoured dot plus a short label for the state of something, such as Live, Building or Failed.Data displayStatus PanelCommunicate empty states, operation outcomes and recoverable errors with clear next steps.FeedbackStepsThe trace of a task as it runs, or a stepper across the top of a view: statuses, durations, stages that open while they work, and steps the reader can select.Data displayStickyPins content to the top or bottom of its scroll container and tells you when it is stuck, optionally hiding it while the reader scrolls down.LayoutStreaming TextPlain text that arrives in bursts, such as an LLM answer, revealed at a steady pace behind a caret.ChatSunburst chartA hierarchy drawn as rings, the whole at the centre and each ring splitting its parent: budgets, disk usage and org spend, with click to zoom.ChartSwipe ActionA list row that slides sideways to reveal actions behind it, as in a mail or task list on a phone.LayoutSwitchOn/off toggle on a native switch input, with label, description and thumb icons.InputsTableVirtualized data grid with declarative columns, sorting, selection, pinning and resizing.Data displayTable Of ContentsAn "On this page" navigation that lists the headings of a document, nests them by level and highlights the section being read.NavigationTabsTab strip that shows one content panel at a time.NavigationTag InputTurns typed or pasted text into removable tags — recipients, keywords, labels — with configurable delimiters, parsing and validation.InputsTerminalAn interactive prompt for commands your app answers: history, Tab completion, streaming output, Ctrl+C, ANSI colours.Editors & viewersText EffectAnimated text for a hero line or a status: rotating words, a typewriter, a scramble, a shimmer or a staggered reveal.Data displayText FieldSingle-line input with icon slots, clear button, helper and error text, and a character counter.InputsTextareaMultiline text input with resizing, helper and error text, and a character counter.InputsTheme SelectColour-theme switcher: click to step to the next mode, hover for the full menu.InputsTime InputForm-associated time-of-day input with a scroll-wheel picker, step and range constraints, helper text and error states.InputsTime Range PickerDashboard time range control: searchable quick ranges, an absolute range typed or picked on a calendar, time zone, shift and zoom, and auto-refresh.InputsTime Slot PickerPick a free time from someone's calendar: a row of days, then that day's times grouped into morning, afternoon and evening.InputsTimelineA vertical sequence of dated events on a connected rail: order history, activity feeds, changelogs.Data displayToastNotification cards and a manager for stacked, queued notifications with independent lifetimes.FeedbackTodo ListA to-do list with the feel of paper: hand-drawn ticks, notes, highlighters, swipe and drag, and a remembered look.PlanningToggletipA small ⓘ button that opens a help bubble on click or tap; the bubble can hold links and is announced to screen readers.FeedbackTooltipContextual hint shown when its target is hovered or focused, rendered in the top layer.FeedbackTourA guided product tour that spotlights one element at a time and explains it in a panel beside it.FeedbackTrace WaterfallShow the spans of a distributed trace as a tree, each with a duration bar on one shared time axis.Data displayTranscriptSpeaker-labelled, timestamped segments synced to playback: click to seek, the word playing marked, search built in.Data displayTreeHierarchical tree view with expansion, selection, checkboxes and lazy loading.Data displayTree SelectA dropdown for picking one or several rows from a hierarchy, with checkboxes, search and a form value.InputsTreemap chartA whole split into nested rectangles, each sized by its value: market maps, budgets and disk usage.ChartTruncateClamps text to a number of lines, with an optional Show more button.Data displayUploadDrag-and-drop file selection with validation, upload progress, retry, cancellation, and attachment results.InputsVideo GridLays out the tiles of a call as a grid, a spotlight or a sidebar, every tile as large as the space allows.LayoutVideo PlayerThemed controls over a real video: chapters on the seek bar, a thumbnail while scrubbing, captions, speed, picture-in-picture and full screen.Data displayVideo TileOne participant of a call: their video or avatar, with their name, a live microphone meter and status badges.Data displayView OptionsThe Display popover of a collection: layout, grouping, ordering on several levels, Show switches and visible properties, reported as one plain value.InputsVirtual ListWindowed list with built-in search, sorting, selection and an async data source.Data displayVisually HiddenText for screen readers only: kept in the accessibility tree, drawn nowhere, optionally shown while it holds focus.LayoutWaterfall chartA running total bridged by the steps that move it, where one row is one step and totals mark where the bridge lands.ChartWeek PlannerWeekly schedule with time blocks: a typical week with optional odd and even weeks, or a dated week the user edits.PlanningWheel PickeriOS-style scroll wheels to pick a time, a height, a weight or any value from a short list, by swipe, scroll, click or keys.InputsWorking IndicatorA live "work in progress" line: animated mark, shimmering label, trailing dots and elapsed time.FeedbackFeather Icons287 open-source Feather icons, one web component each.IconsMat Icon2,234 Material Icons ligatures rendered through a single element.IconsPhosphor Icons1,512 flexible icons in six weights, one web component each.IconsSymbols157 themeable spot illustrations for empty states, status panels, onboarding and error pages.IconsTask icons191 duotone icons for to-do items: work, home, health, sport, learning, food, money, travel and more.IconsThemingTheme every c2n component from a handful of design tokens with @c2n/theme, or reach for any component variable directly.GuideLanguagesComponents show their text in English; add your app’s languages as one JSON object, picked by the nearest lang.GuideFrameworksUse the components from React, Vue, Angular, Svelte, Lit or plain HTML — typed events, generated template types, and the one piece of configuration each framework needs.GuideUsing c2n in an applicationThe workflow behind every c2n app: load the theme once, use c2-* tags directly, and turn every repeated pattern into a small variant or composed component.GuideAI toolsGive Claude Code, Codex, Google Antigravity or GitHub Copilot the c2n skill, live component APIs, examples and application conventions.GuideNo components match.
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