問題描述

我有一個循環.我創建了一個 QCheckBox 并將它放在一個 QTableWidget 單元格中，一切正常.在循環的每一步中，我都為 myslot SLOT 調用了一個 connect 函數，但只應用了最后一個 QCheckBox 實例.我用谷歌搜索了很多，發現很多人都有我的問題.我已經應用了他們的解決方案，但我的問題仍然存在.

I have got a loop. I created a QCheckBox and put it in a QTableWidget cell, and everything is Ok. In each step of loop I have called a connect function, for myslot SLOT, but only the last QCheckBox instance is applied. I googled a lot and have found many people have my problem. I have applied their solutions, but my problem remains.

for row in xrange(len(uniqueFields)):
    instance = QtGui.QCheckBox(uniqueFields[row], findInstance.tableWidget)
    print QtCore.QObject.connect(instance,
        QtCore.SIGNAL(_fromUtf8("stateChanged (int)")),
        lambda: findInstance.projectsInstance.myslot(
                    "TWCH", findInstance, instance.text(),
                    instance.checkState(), instance))
    findInstance.tableWidget.setRowCount(findInstance.tableWidget.rowCount() + 1)
    findInstance.tableWidget.setCellWidget(row, 0, instance)

注意:我的connect函數返回True.

如何在枚舉所有實例的循環中創建connect函數?

How to create connect function in a loop that enumerates all of the instances?

推薦答案

我有同樣的問題，你應該使用 functools.partial 如:

I have same problem , you should use functools.partial such as:

for key, val in a_DICT_THAT_YOU_STORED_YOUR_OBJECTS_AND_STRINGS:
    obj = partial(   findInstance.projectsInstance.myslot,arg1="TWCH",arg2=self,arg3=key,arg4=val.checkState() )
    QtCore.QObject.connect(val, QtCore.SIGNAL(_fromUtf8("stateChanged (int)")), obj)

當然，argX 應該設置為你的函數名參數的真實名稱.

Of course, argX should set to your real name of your argument of your function name.

這篇關于循環中的 QtCore.QObject.connect 只影響最后一個實例的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！