Qt快速控件TabView中的ReferenceError [英] ReferenceError in qt quick controls tabview

问题描述

我已经使用TabView编写了QT Quick程序.当我单击Tabview中的botton b1时，程序应调用show_text()并打印b1的文本，但它会显示"ReferenceError:未定义b1".任何建议将不胜感激，谢谢.

I have written a QT Quick program use TabView. When I click the botton b1 which is in Tabview, the program should call show_text() and print the text of b1, but it print "ReferenceError: b1 is not defined". Any suggestion will be appreciated, thanks.

import QtQuick 2.2
import QtQuick.Controls 1.1
import QtQuick.Window 2.1



ApplicationWindow {
    function show_text() {
        console.log(b1.text)
    }

    TabView {
        id: tv
        Tab {
            id: tab1
            Button{
                id: b1
                text:"b1's text"
                onClicked: {
                    //console.log(b1.text)
                    show_text()
                }
            }
        }
    }
}

推荐答案

将对象作为参数传递

import QtQuick 2.2
import QtQuick.Controls 1.1
import QtQuick.Window 2.1

ApplicationWindow {
    function show_text(myobject) {
        console.log(myobject.text)
    }

    TabView {
        id: tv
        Tab {
            id: tab1
            Button{
                id: b1
                text: "b1's text"
                onClicked: {
                    show_text(b1)
                }
            }
        }
    }
}

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