diff --git a/package.json b/package.json
index 241a140d7..dec8d418f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fineui",
-  "version": "2.0.20230109200447",
+  "version": "2.0.20230113121657",
   "description": "fineui",
   "main": "dist/fineui_without_conflict.min.js",
   "types": "dist/lib/index.d.ts",
diff --git a/src/case/combo/textvaluecombo/combo.textvalue.js b/src/case/combo/textvaluecombo/combo.textvalue.js
index 9dc088639..bc43fce64 100644
--- a/src/case/combo/textvaluecombo/combo.textvalue.js
+++ b/src/case/combo/textvaluecombo/combo.textvalue.js
@@ -130,6 +130,7 @@ BI.TextValueCombo = BI.inherit(BI.Widget, {
                     eventName: BI.Combo.EVENT_BEFORE_POPUPVIEW,
                     action: () => {
                         changeTag = false;
+                        this.fireEvent(BI.TextValueCombo.EVENT_BEFORE_POPUPVIEW);
                     }
                 }, {
                     eventName: BI.Combo.EVENT_AFTER_HIDEVIEW,
@@ -209,5 +210,6 @@ BI.TextValueCombo = BI.inherit(BI.Widget, {
         this.combo.populate(items);
     }
 });
+BI.TextValueCombo.EVENT_BEFORE_POPUPVIEW = "EVENT_BEFORE_POPUPVIEW";
 BI.TextValueCombo.EVENT_CHANGE = "EVENT_CHANGE";
 BI.shortcut("bi.text_value_combo", BI.TextValueCombo);
diff --git a/src/core/platform/web/dom.js b/src/core/platform/web/dom.js
index cc9ed0f8d..66f4b3651 100644
--- a/src/core/platform/web/dom.js
+++ b/src/core/platform/web/dom.js
@@ -745,13 +745,14 @@
          * 获取position:fixed相对定位的元素的clientRect
          */
         getPositionRelativeContainingBlockRect: function (element) {
-            var positionRelativeElement = BI.DOM.getPositionRelativeContainingBlock(element);
-            var rect = positionRelativeElement.getBoundingClientRect();
+            const positionRelativeElement = BI.DOM.getPositionRelativeContainingBlock(element);
+            const { top, right, bottom, left, width, height, x, y } = positionRelativeElement.getBoundingClientRect();
+
 
             return {
-                ...rect.toJSON(),
-                scaleX: rect.width / positionRelativeElement.offsetWidth,
-                scaleY: rect.height / positionRelativeElement.offsetHeight
+                top, right, bottom, left, width, height, x, y,
+                scaleX: width / positionRelativeElement.offsetWidth,
+                scaleY: height / positionRelativeElement.offsetHeight,
             };
         },
     });
diff --git a/typescript/case/combo/combo.textvalue.ts b/typescript/case/combo/combo.textvalue.ts
index 128ec03b6..f2a080ba5 100644
--- a/typescript/case/combo/combo.textvalue.ts
+++ b/typescript/case/combo/combo.textvalue.ts
@@ -4,6 +4,7 @@ export declare class TextValueCombo extends Widget {
     static xtype: string;
 
     static EVENT_CHANGE: string;
+    static EVENT_BEFORE_POPUPVIEW: string;
     
     clear(): void;
     setText(text: string): void;