From 21e2e3af2a256e36eda81ce6f5b8bf9719321cc8 Mon Sep 17 00:00:00 2001
From: wpxp123456 <2677556700@qq.com>
Date: Fri, 9 Jan 2026 14:38:01 +0800
Subject: [PATCH] fix(sheets): fix the issue of double-clicking automatically
 filling boundaries (#6448)

---
 .../src/controllers/auto-fill.controller.ts   | 25 +++++++++----------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/packages/sheets-ui/src/controllers/auto-fill.controller.ts b/packages/sheets-ui/src/controllers/auto-fill.controller.ts
index fe5373afd5..aba02fa6f8 100644
--- a/packages/sheets-ui/src/controllers/auto-fill.controller.ts
+++ b/packages/sheets-ui/src/controllers/auto-fill.controller.ts
@@ -275,24 +275,23 @@ export class AutoFillController extends Disposable {
             return source;
         }
         const matrix = worksheet.getCellMatrix();
-        const maxRow = worksheet.getMaxRows() - 1;
-        const maxColumn = worksheet.getMaxColumns() - 1;
-        let detectEndRow = endRow;
+        const maxRow = worksheet.getMaxRows();
+        const maxColumn = worksheet.getMaxColumns();
+        let detectEndRow = endRow + 1;
         // left column first, or consider right column.
-        if (startColumn > 0 && matrix.getValue(startRow, startColumn - 1)?.v != null) {
-            let cur = startRow;
-            while (matrix.getValue(cur, startColumn - 1)?.v != null && cur < maxRow) {
-                cur += 1;
+        if (startColumn > 0 && matrix.getValue(detectEndRow, startColumn - 1)?.v != null) {
+            while (matrix.getValue(detectEndRow + 1, startColumn - 1)?.v != null && detectEndRow < maxRow) {
+                detectEndRow += 1;
             }
-            detectEndRow = cur - 1;
-        } else if (endColumn < maxColumn && matrix.getValue(endRow, endColumn + 1)?.v != null) {
-            let cur = startRow;
-            while (matrix.getValue(cur, endColumn + 1)?.v != null && cur < maxRow) {
-                cur += 1;
+        } else if (endColumn < maxColumn - 1 && matrix.getValue(detectEndRow, endColumn + 1)?.v != null) {
+            while (matrix.getValue(detectEndRow + 1, endColumn + 1)?.v != null && detectEndRow < maxRow) {
+                detectEndRow += 1;
             }
-            detectEndRow = cur - 1;
+        } else {
+            detectEndRow = endRow;
         }
 
+        // If the fill range contains data, stop filling at the first row of data.
         for (let i = endRow + 1; i <= detectEndRow; i++) {
             for (let j = startColumn; j <= endColumn; j++) {
                 if (matrix.getValue(i, j)?.v != null) {