Qt6迁移-UIC生成的代码无法编译（连接插槽）-已更新

我正在尝试将我的项目从Qt5移植到Qt6。 我的问题是UIC生成的代码如下所示：

QObject::connect(SelectHome, &QToolButton::clicked, toQPSQLSettingUI, qOverload<>(&QWidget::selectHome));

请看目标是方法是

QWidget:：selectHome

，因此我认为MSVC是正确的QWidget没有方法

selectHome

。但目标应该是子类method

toQPSQLSettingUI:：selectHome

完整的来源是。最初为Qt2创建，迁移到Qt3=>Qt4=>Q5

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>toQPSQLSettingUI</class>
 <widget class="QWidget" name="toQPSQLSettingUI">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>600</width>
    <height>517</height>
   </rect>
  </property>
  <property name="sizePolicy">
   <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
    <horstretch>0</horstretch>
    <verstretch>0</verstretch>
   </sizepolicy>
  </property>
  <property name="minimumSize">
   <size>
    <width>600</width>
    <height>0</height>
   </size>
  </property>
  <property name="windowTitle">
   <string>Form1</string>
  </property>
  <layout class="QGridLayout">
   <property name="margin">
    <number>11</number>
   </property>
   <property name="spacing">
    <number>6</number>
   </property>
   <item row="0" column="1" colspan="2">
    <widget class="QLineEdit" name="PGSQL_HOME"/>
   </item>
   <item row="0" column="0">
    <widget class="QLabel" name="TextLabel6_2_2_2">
     <property name="toolTip">
      <string>The default dateformat to use when querying the database.</string>
     </property>
     <property name="text">
      <string>PgSQL home</string>
     </property>
     <property name="wordWrap">
      <bool>false</bool>
     </property>
     <property name="buddy">
      <cstring>PGSQL_HOME</cstring>
     </property>
    </widget>
   </item>
   <item row="1" column="0">
    <spacer name="verticalSpacer">
     <property name="orientation">
      <enum>Qt::Vertical</enum>
     </property>
     <property name="sizeHint" stdset="0">
      <size>
       <width>20</width>
       <height>40</height>
      </size>
     </property>
    </spacer>
   </item>
   <item row="0" column="3">
    <widget class="QToolButton" name="SelectHome">
     <property name="text">
      <string>...</string>
     </property>
    </widget>
   </item>
  </layout>
 </widget>
 <tabstops>
  <tabstop>PGSQL_HOME</tabstop>
 </tabstops>
 <resources/>
 <connections>
  <connection>
   <sender>SelectHome</sender>
   <signal>clicked()</signal>
   <receiver>toQPSQLSettingUI</receiver>
   <slot>selectHome()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>606</x>
     <y>20</y>
    </hint>
    <hint type="destinationlabel">
     <x>314</x>
     <y>258</y>
    </hint>
   </hints>
  </connection>
 </connections>
 <slots>
  <signal>signal1()</signal>
 </slots>
</ui>

toQPSQLSettingUI
0
0
600
517
0
0
600
0
表格1
11
6.
查询数据库时使用的默认日期格式。
PgSQL主页
假的
PGU主页
Qt：：垂直
20
40
...
PGU主页
选择家
点击（）
toQPSQLSettingUI
selectHome（）
606
20
314
258
信号1（）

此行：

说明

toQPSQLSettingUI

的类是

QWidget

。但是为了使用

selectHome

槽（我认为它确实存在于子类中），您需要将小部件“升级”到子类（这是通过在Qt-Creator设计模式中右键单击小部件，然后选择升级操作完成的）。

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>toQPSQLSettingUI</class>
 <widget class="QWidget" name="toQPSQLSettingUI">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>600</width>
    <height>517</height>
   </rect>
  </property>
  <property name="sizePolicy">
   <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
    <horstretch>0</horstretch>
    <verstretch>0</verstretch>
   </sizepolicy>
  </property>
  <property name="minimumSize">
   <size>
    <width>600</width>
    <height>0</height>
   </size>
  </property>
  <property name="windowTitle">
   <string>Form1</string>
  </property>
  <layout class="QGridLayout">
   <property name="margin">
    <number>11</number>
   </property>
   <property name="spacing">
    <number>6</number>
   </property>
   <item row="0" column="1" colspan="2">
    <widget class="QLineEdit" name="PGSQL_HOME"/>
   </item>
   <item row="0" column="0">
    <widget class="QLabel" name="TextLabel6_2_2_2">
     <property name="toolTip">
      <string>The default dateformat to use when querying the database.</string>
     </property>
     <property name="text">
      <string>PgSQL home</string>
     </property>
     <property name="wordWrap">
      <bool>false</bool>
     </property>
     <property name="buddy">
      <cstring>PGSQL_HOME</cstring>
     </property>
    </widget>
   </item>
   <item row="1" column="0">
    <spacer name="verticalSpacer">
     <property name="orientation">
      <enum>Qt::Vertical</enum>
     </property>
     <property name="sizeHint" stdset="0">
      <size>
       <width>20</width>
       <height>40</height>
      </size>
     </property>
    </spacer>
   </item>
   <item row="0" column="3">
    <widget class="QToolButton" name="SelectHome">
     <property name="text">
      <string>...</string>
     </property>
    </widget>
   </item>
  </layout>
 </widget>
 <tabstops>
  <tabstop>PGSQL_HOME</tabstop>
 </tabstops>
 <resources/>
 <connections>
  <connection>
   <sender>SelectHome</sender>
   <signal>clicked()</signal>
   <receiver>toQPSQLSettingUI</receiver>
   <slot>selectHome()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>606</x>
     <y>20</y>
    </hint>
    <hint type="destinationlabel">
     <x>314</x>
     <y>258</y>
    </hint>
   </hints>
  </connection>
 </connections>
 <slots>
  <signal>signal1()</signal>
 </slots>
</ui>