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HeaderRowContribution

Since v2.10.0

A single header row contributed by a plugin. Sits above the leaf column-header row in the visual / export output.

Each contribution represents one row. A plugin needing multiple rows (e.g. multi-level grouping) returns HeaderRowContribution[] from handleQuery; the consumer flattens. Within each row, cells MUST independently sum to context.columns.length.

PropertyTypeDescription
cellsHeaderRowCell[]Cells in this row, in left-to-right column order.
AI assistants: For complete API documentation, implementation guides, and code examples for this library, see https://toolboxjs.com/llms-full.txt