From 2a547dca1e11670822a72eff9134d2286b32dc97 Mon Sep 17 00:00:00 2001
From: Kobi <kobi@fanruan.com>
Date: Thu, 23 Nov 2023 09:53:20 +0800
Subject: [PATCH] =?UTF-8?q?BI-138976=20fix:=20=E8=AE=A1=E7=AE=97=E9=AB=98?=
 =?UTF-8?q?=E5=BA=A6?=
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---
 .../fineui/src/base/list/virtualgrouplist.js   | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/packages/fineui/src/base/list/virtualgrouplist.js b/packages/fineui/src/base/list/virtualgrouplist.js
index e2e0d5ddf..143c867fa 100644
--- a/packages/fineui/src/base/list/virtualgrouplist.js
+++ b/packages/fineui/src/base/list/virtualgrouplist.js
@@ -77,6 +77,7 @@ export class VirtualGroupList extends Widget {
                 this.populate(newValue);
             })
             : o.items;
+        this._calculateSummaryHeight();
         this._populate();
         this.ticking = false;
         this.element.scroll(() => {
@@ -169,6 +170,16 @@ export class VirtualGroupList extends Widget {
             );
         }
     }
+
+    _calculateSummaryHeight() {
+        const o = this.options;
+        if (isFunction(o.rowHeight)) {
+            this.summaryHeight = sum(o.items, o.rowHeight);
+        } else {
+            this.summaryHeight = this._isAutoHeight() ? 0 : o.rowHeight * o.items.length;
+        }
+    }
+
     _populate(items) {
         const { blockSize, rowHeight, scrollTop } = this.options;
         if (items && this.options.items !== items) {
@@ -198,13 +209,8 @@ export class VirtualGroupList extends Widget {
     }
 
     _restore() {
-        const o = this.options;
         this.renderedIndex = -1;
-        if (isFunction(o.rowHeight)) {
-            this.summaryHeight = sum(o.items, o.rowHeight);
-        } else {
-            this.summaryHeight = this._isAutoHeight() ? 0 : o.rowHeight * o.items.length;
-        }
+        this._calculateSummaryHeight();
         // 依赖于cache的占位元素也要初始化
         this.topBlank.setHeight(0);
         this.bottomBlank.setHeight(0);