Rows n’ Columns Docs
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  • Introduction
  • License
  • Demos
  • Getting started
    • Installation
    • Spreadsheet state
    • Headless UI
    • Imperative Spreadsheet API
    • Examples
  • ⚙️Configuration
    • Features
      • Data validation
      • Formula evaluation
      • Real-time data
      • Cell editors
      • Cell renderer
      • Structured Cell Renderer
      • Theming
      • Styling
      • Context menu
      • Localisation
      • Undo/Redo
      • Conditional formatting
      • Named ranges
      • Structured references
        • Schema based tables and columns
        • Calculated columns
      • Basic filter or Excel AutoFilter
      • Charts
      • Embedded content
      • Calculate on-demand
      • Drag and Drop
      • Pivoting and Grouping (Coming soon)
      • Tokenizer
      • Lazy loading/Infinite scrolling
      • OpenAI/Chat GPT Integration
      • Search
      • Formula protection
      • Autofill
      • Export canvas as image
    • Components
      • Canvas Grid
      • Toolbar
      • Sheet Tabs
      • Sheet Switcher
      • Sheet Status
      • Range Selector
      • Formula Input
      • Selection Input
      • SheetSearch
      • NamedRangeEditor
      • DeleteSheetConfirmation
      • TableEditor
      • Cell Format Editor
      • Conditional Format Editor
      • Data Validation Editor
      • Insert Link Editor
      • Insert Image Editor
    • API
      • Cell Data
      • Sheets
      • SpreadsheetProvider
      • useSpreadsheet
      • Modules
      • SheetCell
    • Using Spreadsheet with NextJS
    • Keyboard shortcuts
  • Collaboration
    • Real time collaboration
    • Yjs Collaboration
    • Supabase realtime Collaboration
  • Charts
    • Charts
    • Custom charts
  • Excel and Google sheets
    • CSV
    • Excel
    • Google sheets (Coming soon)
  • Functions
    • Named functions
    • Array formulas
  • Data persistence
    • Server side data persistence
    • React Query integration
  • Specifications
    • Browser support
    • Third party licenses
  • Support
    • Contact support
    • Report bugs
    • Feature requests
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  1. Configuration
  2. Features

Calculate on-demand

Trigger a full recalc whenever you need it.

If you are uploading an excel file or replacing the state of the spreadsheet, you will have to manually trigger a full recalc.

You can also disable formula evaluation or reset teh cell dependency graph using options.

To do so, useSpreadsheetState exposes calculateNow function.

import {
  SpreadsheetProvider,
  CanvasGrid,
} from "@rowsncolumns/spreadsheet";
import { useSpreadsheetState } from "@rowsncolumns/spreadsheet-state";

const MySpreadsheet = () => {
  const { calculateNow } = useSpreadsheetState({
    ...
  });
  return (
    <div>
      <input type="file" onChange={() => {
        // Update sheets
        // update sheet Data
        // Update table
        calculateNow({
          // Formulas are not evaluated, only cell dependency graph is rebuilt
          disableEvaluation: true,
          // Optionally reset the entire dependency graph
          resetDependencyGraph: true,
        })
      })
      <CanvasGrid />
    </div>
  );
};

const App = () => (
  <SpreadsheetProvider>
    <MySpreadsheet />
  </SpreadsheetProvider>
);
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Last updated 9 months ago

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