Question

i 首次使用pyqt4开发全球企业;

我有一套pin子,我希望它允许的价值观范围取决于另一个pin子箱的价值。例如,第一种关键箱中允许的最高价值应当等同于第二套主要箱的价值。

I thought this may be possible using a valueChanged() signal to call a method that is something like:

def function
    max = spinbox2.value()
    spinbox1.setMaximum(max)

但是,有人知道如何这样做?

thank you

Answer 1

You have not shown your code where you make the connection between the valueChanged signal of spinbox2 with the function. Are you making that connection ?. Also the code you have given for function seems to be incomplete.

你们可以尝试这样的事情:

spinbbox2.valueChanged.connect(handler)
# Or this which works for Python 3.5
spinbbox2.valueChanged[int].connect(handler)

# The function handler called is called whenever
# value in spinbox2 is changed and parameter to
# handler is the new value of spinbox2
def handler(value):
    spinbox1.setMaximum(value)

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