我试图将业务逻辑放在Main.qml
中,将用户界面放在MainForm.ui.qml
中,但我无法通过窗口小部件ID进行连接。
MainForm.ui.qml:
import QtQuick 2.8
import QtQuick.Controls 2.2
import QtQuick.Layouts 1.3
Page {
id: page
header: TabBar { ... }
StackLayout {
id: stack
Pane {
Flow {
TextField {
id: theText
}
property alias sendBtn: sendBtn
Button {
id: sendBtn
}
}
}
}
}
Main.qml:
import QtQuick 2.8
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
MainForm {
anchors.fill: parent
sendBtn {
onClicked: backend.sendTextToServer( theText.text )
}
}
}
Qt Creator说:Invalid property name "sendBtn" (M16)
运行失败并显示以下消息:
QQmlApplicationEngine failed to load component
qrc:/Main.qml:12 Cannot assign to non-existent property "sendBtn"
答案 0 :(得分:1)
当您将property alias sendBtn: sendBtn
放入Pane时被解释为Pane属性,因此您无法以这种方式访问它,将它放在Page的上下文中是正确的。
import QtQuick 2.8
import QtQuick.Controls 2.2
import QtQuick.Layouts 1.3
Page {
id: page
property alias sendBtn: sendBtn
property alias theText: theText
header: TabBar { ... }
StackLayout {
id: stack
Pane {
Flow {
TextField {
id: theText
}
Button {
id: sendBtn
}
}
}
}
}