From aa40880ed7186e6f999b05203b6455db2285c6bf Mon Sep 17 00:00:00 2001
From: Bilal Shafi <bilalshafidev@gmail.com>
Date: Wed, 16 Oct 2024 19:36:36 +0500
Subject: [PATCH] [DataGridPro] Fix indeterminate checkbox state for
 server-side data (#14956)

---
 packages/x-data-grid/src/hooks/features/rowSelection/utils.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/x-data-grid/src/hooks/features/rowSelection/utils.ts b/packages/x-data-grid/src/hooks/features/rowSelection/utils.ts
index ce2aa20c4e3b0..6084acb11686b 100644
--- a/packages/x-data-grid/src/hooks/features/rowSelection/utils.ts
+++ b/packages/x-data-grid/src/hooks/features/rowSelection/utils.ts
@@ -87,8 +87,8 @@ export function getCheckboxPropsSelector(groupId: GridRowId, autoSelectParents:
       }
       return {
         isIndeterminate:
-          (selectedDescendantsCount > 0 && selectedDescendantsCount < selectableDescendantsCount) ||
-          (selectedDescendantsCount === selectableDescendantsCount &&
+          selectedDescendantsCount > 0 &&
+          (selectedDescendantsCount < selectableDescendantsCount ||
             rowSelectionLookup[groupId] === undefined),
         isChecked: autoSelectParents
           ? selectedDescendantsCount > 0