diff --git a/src/FluFrameless.cpp b/src/FluFrameless.cpp
index 50feb104..3c72e9a5 100644
--- a/src/FluFrameless.cpp
+++ b/src/FluFrameless.cpp
@@ -195,8 +195,7 @@ bool FluFrameless::nativeEventFilter(const QByteArray &eventType, void *message,
         if (0 != *result) {
             return true;
         }
-        auto aa = _hitAppBar();
-        if(aa){
+        if(_hitAppBar()){
             *result = HTCAPTION;
             return true;
         }
diff --git a/src/FluFrameless.h b/src/FluFrameless.h
index e3b09477..ce7173d4 100644
--- a/src/FluFrameless.h
+++ b/src/FluFrameless.h
@@ -47,9 +47,8 @@ private:
     bool _containsCursorToItem(QQuickItem* item);
     bool _hitAppBar();
     bool _hitMaximizeButton();
-    qint64 _current;
-
 private:
+    qint64 _current;
     int _edges = 0;
     int _margins = 8;
     QList<QPointer<QQuickItem>> _hitTestList;
diff --git a/src/Qt5/imports/FluentUI/Controls/FluPaneItem.qml b/src/Qt5/imports/FluentUI/Controls/FluPaneItem.qml
index 0190b0e1..24756857 100644
--- a/src/Qt5/imports/FluentUI/Controls/FluPaneItem.qml
+++ b/src/Qt5/imports/FluentUI/Controls/FluPaneItem.qml
@@ -3,7 +3,7 @@ import QtQuick.Controls 2.15
 import FluentUI 1.0
 
 QtObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property var _ext
     property var _parent
@@ -22,4 +22,7 @@ QtObject {
     property var extra
     property bool showEdit
     signal tap
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt5/imports/FluentUI/Controls/FluPaneItemEmpty.qml b/src/Qt5/imports/FluentUI/Controls/FluPaneItemEmpty.qml
index 7fdcf69b..75f8922c 100644
--- a/src/Qt5/imports/FluentUI/Controls/FluPaneItemEmpty.qml
+++ b/src/Qt5/imports/FluentUI/Controls/FluPaneItemEmpty.qml
@@ -3,9 +3,12 @@ import QtQuick.Controls 2.15
 import FluentUI 1.0
 
 QtObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property var _ext
     property var _parent
     property bool visible: true
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt5/imports/FluentUI/Controls/FluPaneItemExpander.qml b/src/Qt5/imports/FluentUI/Controls/FluPaneItemExpander.qml
index ac90848c..c130a71c 100644
--- a/src/Qt5/imports/FluentUI/Controls/FluPaneItemExpander.qml
+++ b/src/Qt5/imports/FluentUI/Controls/FluPaneItemExpander.qml
@@ -3,7 +3,7 @@ import QtQuick.Controls 2.15
 import FluentUI 1.0
 
 FluObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property bool visible: true
     property string title
@@ -15,4 +15,7 @@ FluObject {
     property Component iconDelegate
     property Component menuDelegate
     property Component editDelegate
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt5/imports/FluentUI/Controls/FluPaneItemHeader.qml b/src/Qt5/imports/FluentUI/Controls/FluPaneItemHeader.qml
index 5b177a65..b8addcdc 100644
--- a/src/Qt5/imports/FluentUI/Controls/FluPaneItemHeader.qml
+++ b/src/Qt5/imports/FluentUI/Controls/FluPaneItemHeader.qml
@@ -3,9 +3,12 @@ import QtQuick.Controls 2.15
 import FluentUI 1.0
 
 QtObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property bool visible: true
     property string title
     property var parent
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt5/imports/FluentUI/Controls/FluPaneItemSeparator.qml b/src/Qt5/imports/FluentUI/Controls/FluPaneItemSeparator.qml
index 8d9c7e61..0193b42d 100644
--- a/src/Qt5/imports/FluentUI/Controls/FluPaneItemSeparator.qml
+++ b/src/Qt5/imports/FluentUI/Controls/FluPaneItemSeparator.qml
@@ -3,10 +3,12 @@ import QtQuick.Controls 2.15
 import FluentUI 1.0
 
 QtObject {
-    readonly property string key : FluTools.uuid()
     property int _idx
     property bool visible: true
     property var parent
     property real spacing
     property int size:1
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt6/imports/FluentUI/Controls/FluPaneItem.qml b/src/Qt6/imports/FluentUI/Controls/FluPaneItem.qml
index d2214015..7b2917a1 100644
--- a/src/Qt6/imports/FluentUI/Controls/FluPaneItem.qml
+++ b/src/Qt6/imports/FluentUI/Controls/FluPaneItem.qml
@@ -22,4 +22,7 @@ QtObject {
     property var extra
     property bool showEdit
     signal tap
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt6/imports/FluentUI/Controls/FluPaneItemEmpty.qml b/src/Qt6/imports/FluentUI/Controls/FluPaneItemEmpty.qml
index 0f12e384..f5e0135d 100644
--- a/src/Qt6/imports/FluentUI/Controls/FluPaneItemEmpty.qml
+++ b/src/Qt6/imports/FluentUI/Controls/FluPaneItemEmpty.qml
@@ -3,9 +3,12 @@ import QtQuick.Controls
 import FluentUI
 
 QtObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property var _ext
     property var _parent
     property bool visible: true
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt6/imports/FluentUI/Controls/FluPaneItemExpander.qml b/src/Qt6/imports/FluentUI/Controls/FluPaneItemExpander.qml
index 93c2e648..e6d711b4 100644
--- a/src/Qt6/imports/FluentUI/Controls/FluPaneItemExpander.qml
+++ b/src/Qt6/imports/FluentUI/Controls/FluPaneItemExpander.qml
@@ -3,7 +3,7 @@ import QtQuick.Controls
 import FluentUI
 
 FluObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property bool visible: true
     property string title
@@ -15,4 +15,7 @@ FluObject {
     property Component iconDelegate
     property Component menuDelegate
     property Component editDelegate
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt6/imports/FluentUI/Controls/FluPaneItemHeader.qml b/src/Qt6/imports/FluentUI/Controls/FluPaneItemHeader.qml
index 6918097f..1eff6af0 100644
--- a/src/Qt6/imports/FluentUI/Controls/FluPaneItemHeader.qml
+++ b/src/Qt6/imports/FluentUI/Controls/FluPaneItemHeader.qml
@@ -3,9 +3,12 @@ import QtQuick.Controls
 import FluentUI
 
 QtObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property bool visible: true
     property string title
     property var parent
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }
diff --git a/src/Qt6/imports/FluentUI/Controls/FluPaneItemSeparator.qml b/src/Qt6/imports/FluentUI/Controls/FluPaneItemSeparator.qml
index 23433b68..1360e923 100644
--- a/src/Qt6/imports/FluentUI/Controls/FluPaneItemSeparator.qml
+++ b/src/Qt6/imports/FluentUI/Controls/FluPaneItemSeparator.qml
@@ -3,10 +3,13 @@ import QtQuick.Controls
 import FluentUI
 
 QtObject {
-    readonly property string key : FluTools.uuid()
+    property string key
     property int _idx
     property bool visible: true
     property var parent
     property real spacing
     property int size:1
+    Component.onCompleted: {
+        key = FluTools.uuid()
+    }
 }