[data grid] Use readonly array result for getTreeDataPath (#11743)

Co-authored-by: Rom Grk <romgrk.cc@gmail.com>
mui · Aug 22, 2024 · 9d24a7b · 9d24a7b
1 parent 7aaecf5
commit 9d24a7b
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diff --git a/packages/x-data-grid-pro/src/models/dataGridProProps.ts b/packages/x-data-grid-pro/src/models/dataGridProProps.ts
@@ -153,7 +153,7 @@ interface DataGridProRegularProps<R extends GridValidRowModel> {
    * @param {R} row The row from which we want the path.
    * @returns {string[]} The path to the row.
    */
-  getTreeDataPath?: (row: R) => string[];
+  getTreeDataPath?: (row: R) => readonly string[];
 }
 
 export interface DataGridProPropsWithoutDefaultValue<R extends GridValidRowModel = any>

diff --git a/packages/x-data-grid-pro/src/tests/treeData.DataGridPro.test.tsx b/packages/x-data-grid-pro/src/tests/treeData.DataGridPro.test.tsx
@@ -216,7 +216,7 @@ describe('<DataGridPro /> - Tree data', () => {
       ]);
       setProps({
         getTreeDataPath: (row) => [...row.name.split('.').reverse()],
-      } as DataGridProProps);
+      } as Pick<DataGridProProps, 'getTreeDataPath'>);
       expect(getColumnValues(1)).to.deep.equal([
         'A',
         'A.A',