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fix(HeaderCell): add unique keys to column grouping cells; #168

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Neschadin
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@Neschadin Neschadin commented Mar 19, 2025

This PR fixes the React warning "Each child in a list should have a unique 'key' prop" that occurs when using the gridColumnStart and gridColumnEnd props in the HeaderCell component (which is also used in FooterCell). The issue was due to the generation of additional grouping cells without unique keys.

Changes:
Updated the column grouping rendering in HeaderCell to assign a unique key to each generated grouping cell.

This change addresses #158 & #167

@Neschadin Neschadin changed the title fix(HeaderCell): add unique keys to column grouping cells and update … fix(HeaderCell): add unique keys to column grouping cells; Mar 19, 2025
@rwieruch
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Thanks for the PR. Should be fixed over here 8c10b01 in version 4.1.14. This PR had several other changes, so I couldn't merge it right away. Appreciate the work @Neschadin 🚀

@rwieruch rwieruch closed this Apr 18, 2025
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3 participants