From a19a74caea9f0208347137a7e90d0bcffb3b3739 Mon Sep 17 00:00:00 2001
From: IceMooncake <147961575+IceMooncake@users.noreply.github.com>
Date: Thu, 18 Dec 2025 11:32:50 +0800
Subject: [PATCH] fix(table): return 0 when scrollbar does not exist and avoid
 forced y scroll (#8443)

---
 components/_util/getScrollBarSize.ts | 7 +++++--
 components/vc-table/Table.tsx        | 2 +-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/components/_util/getScrollBarSize.ts b/components/_util/getScrollBarSize.ts
index 12a142f3fc..ab077216a0 100644
--- a/components/_util/getScrollBarSize.ts
+++ b/components/_util/getScrollBarSize.ts
@@ -54,9 +54,12 @@ export function getTargetScrollBarSize(target: HTMLElement) {
     return { width: 0, height: 0 };
   }
 
+  const hasVertical = target.scrollHeight > target.clientHeight;
+  const hasHorizontal = target.scrollWidth > target.clientWidth;
+
   const { width, height } = getComputedStyle(target, '::-webkit-scrollbar');
   return {
-    width: ensureSize(width),
-    height: ensureSize(height),
+    width: hasVertical ? ensureSize(width) : 0,
+    height: hasHorizontal ? ensureSize(height) : 0,
   };
 }
diff --git a/components/vc-table/Table.tsx b/components/vc-table/Table.tsx
index d68688787f..f7ced9a131 100644
--- a/components/vc-table/Table.tsx
+++ b/components/vc-table/Table.tsx
@@ -379,7 +379,7 @@ export default defineComponent({
     watchEffect(() => {
       if (fixHeader.value) {
         scrollYStyle.value = {
-          overflowY: 'scroll',
+          overflowY: 'auto',
           maxHeight: toPx(props.scroll.y),
         };
       }