QML 错误:属性名称 minX (M16) 无效

Question

我正在使用Qt 5.12.8，我已经导入

了

import QtQml.Models 2.2 
import QtQuick 2.7 
import QtQuick.Controls 2.2 
import QtQuick.Layouts 1.3 

但是我收到此错误：无效的属性名称minX(M16(。有人可以指导我什么是我的错误！！

NewWindow {
id: newWindow
visible: !privateVars.isLoading && !privateVars.isEditing
x: (maxX-minX)/2
y: (maxY-minY)/2
minX: -parent.x        //ERROR invalid property name minX (M16)
maxX: monitor.width - width - parent.x - additionalToolbarRightMargin -25 //ERROR invalid property name maxX (M16)
minY: -parent.y    //ERROR invalid property name minY (M16)
maxY: monitor.height - height -parent.y  //ERROR invalid property name maxY (M16)
onLoadClicked: privateVars.isLoading = true
//selectedMissionInstance: loadMissionWindow.selectedMissionInstance
onNewClicked:
{
//Create new mission in missionmodel and go to edit view
missionPlanningModel.newMissionClicked()
privateVars.isEditing = true
}
}

Answer 1

我想你想为NewWindow创建一个变量minX/minY/etc，而不是为现有的变量设置一个值。 如果是这样，您应该声明它。诸如此类：

NewWindow {
id: newWindow
visible: !privateVars.isLoading && !privateVars.isEditing
x: (maxX-minX)/2
y: (maxY-minY)/2
property int minX: -parent.x     //Now it's not firing an error
property int maxX: monitor.width - width - parent.x - additionalToolbarRightMargin -25 
property int minY: -parent.y   
property int maxY: monitor.height - height -parent.y maxY (M16)
onLoadClicked: privateVars.isLoading = true
//selectedMissionInstance: loadMissionWindow.selectedMissionInstance
onNewClicked:
{
//Create new mission in missionmodel and go to edit view
missionPlanningModel.newMissionClicked()
privateVars.isEditing = true
}
}