From 1c0ff2080478fb0eb0a7211dcce60df3dedc4448 Mon Sep 17 00:00:00 2001
From: fenley <49503866+godfengliang@users.noreply.github.com>
Date: Wed, 3 Jun 2026 12:12:59 +0800
Subject: [PATCH] fix: only count bar dataset axes in bar width calculation for
 multiple x-axis

---
 src/controllers/controller.bar.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/controllers/controller.bar.js b/src/controllers/controller.bar.js
index 554497b3053..877a241906c 100644
--- a/src/controllers/controller.bar.js
+++ b/src/controllers/controller.bar.js
@@ -499,7 +499,12 @@ export default class BarController extends DatasetController {
   _getAxis() {
     const axis = {};
     const firstScaleAxisId = this.getFirstScaleIdForIndexAxis();
-    for (const dataset of this.chart.data.datasets) {
+    for (let i = 0; i < this.chart.data.datasets.length; i++) {
+      const meta = this.chart.getDatasetMeta(i);
+      if (meta.type !== this._type) {
+        continue;
+      }
+      const dataset = this.chart.data.datasets[i];
       axis[valueOrDefault(
         this.chart.options.indexAxis === 'x' ? dataset.xAxisID : dataset.yAxisID, firstScaleAxisId
       )] = true;