Added index to getGroupingValue

dvmoritzschoefl · dvmoritzschoefl · commit 2ce11799b0ca · 2026-06-19T09:55:41.000+02:00
diff --git a/packages/table-core/src/features/column-grouping/columnGroupingFeature.types.ts b/packages/table-core/src/features/column-grouping/columnGroupingFeature.types.ts
@@ -89,7 +89,7 @@ export interface ColumnDef_ColumnGrouping<
   /**
    * Specify a value to be used for grouping rows on this column. If this option is not specified, the value derived from `accessorKey` / `accessorFn` will be used instead.
    */
-  getGroupingValue?: (row: TData) => any
+  getGroupingValue?: (row: TData, index: number) => any
 }
 
 export interface Column_ColumnGrouping<
diff --git a/packages/table-core/src/features/column-grouping/columnGroupingFeature.utils.ts b/packages/table-core/src/features/column-grouping/columnGroupingFeature.utils.ts
@@ -284,6 +284,7 @@ export function row_getGroupingValue<
   if (row._groupingValuesCache) {
     row._groupingValuesCache[columnId] = column.columnDef.getGroupingValue(
       row.original,
+      row.index,
     )
   }
 

Original file line number	Diff line number	Diff line change
`@@ -89,7 +89,7 @@ export interface ColumnDef_ColumnGrouping<`
`89`	`89`	`/**`
`90`	`90`	* Specify a value to be used for grouping rows on this column. If this option is not specified, the value derived from `accessorKey` / `accessorFn` will be used instead.
`91`	`91`	`*/`
`92`		`- getGroupingValue?: (row: TData) => any`
	`92`	`+ getGroupingValue?: (row: TData, index: number) => any`
`93`	`93`	`}`
`94`	`94`
`95`	`95`	`export interface Column_ColumnGrouping<`
Original file line number	Diff line number	Diff line change
`@@ -284,6 +284,7 @@ export function row_getGroupingValue<`
`284`	`284`	`if (row._groupingValuesCache) {`
`285`	`285`	`row._groupingValuesCache[columnId] = column.columnDef.getGroupingValue(`
`286`	`286`	`row.original,`
	`287`	`+ row.index,`
`287`	`288`	`)`
`288`	`289`	`}`
`289`	`290`