[wxPython-users] Parent catching child's event

[Christopher Barker]

Ryan Krauss wrote:
> I think this should be easy, but I am not making it work correctly.
> In the same application I mentioned a few minutes ago, I need to have
> my main frame respond to a button event on a child panel.  I also need
> the child panel to handle the event first.  The child's event handles
> includes Skip(), but the event is not being picked up by the parent.

You may need a Skip() in the parent too. It depends which one gets bound =

first.

> The line to bind the event in the parent's __init__ method is:
> =

> self.Bind(wx.EVT_BUTTON, self.OnMainDirChange, =

> self.MainDirChooser.BrowseButton)

Which could be:
self.MainDirChooser.BrowseButton.Bind(wx.EVT_BUTTON, self.OnMainDirChange)

Which I think is a bit cleaner,b ut it should do the same thing.

However, this code violates the Law of Demeter:

"http://www.ccs.neu.edu/home/lieber/LoD.html"

i.e. now the Frame needs to know that the MainDirChooser Panel has an =

attribute named BrowseButton that is a wx.Button.

Style aside, what you describe works for me. See enclosed sample.

-Chris



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Christopher Barker, Ph.D.
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Emergency Response Division
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Chris.Barker at noaa.gov
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