Hi David, There's a working smaple at https://github.com/jdhardy/IronPythonSamples/blob/master/PyWpfSample/PyWpfSample.py that you can check out.
>From looking at your code, I think the issue is that you need to use 'self.label1.Content = ...' to reference the controls on the form. - Jeff On Fri, Apr 27, 2012 at 10:28 AM, David Bagby <d...@calypsoventures.com> wrote: > Hi, > I’m a bit new to both IronPython and WPF - so of course I find myself trying > to figure out how to make them work together… > (I don’t know where best to ask this question as I don’t know if this is > really a IPY or a WPF or combination question - so if there is a better > group to consult, please tell me a good place to go ask.) > > FYI, Software context: > VS 2010 > IPY 2.7.2.1 > PTVS 1.1.1 > > For a learning test case, I had VS create the XAML for a window with one > button and one label. The simple goal is to click the button and have the > value in the label increment. > > That was easy from a VB WPF app; but I can’t get the same simple action from > a IPY WPF app. > > Here is the IPY XAML: > <Window > xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"; > xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"; > Title="IPY-WPF-2" Height="300" Width="300"> > <Grid> > <Button Content="Button" Height="57" HorizontalAlignment="Left" > Margin="48,26,0,0" VerticalAlignment="Top" Width="116" Click="Button_Click" > DataContext="{Binding}" Name="Button1" /> > <Label Content="Label" Height="38" HorizontalAlignment="Left" > Margin="62,147,0,0" VerticalAlignment="Top" Width="101" Name="label1" > DataContext="{Binding ElementName=Label1, Path=Content.Length}" /> > </Grid> > </Window> > > Both the IPY and VB WPF app Xaml files were created by the VS form editor – > so I’m guessing that the XAML is probably not the issue (but it’s just a > guess). > > Here is the IPY code: > > import wpf > from System.Windows import Application, Window > from System.Windows.Controls import Button, Label > > class MyWindow(Window): > def __init__(self): > wpf.LoadComponent(self, 'IPY_WPF_2.xaml') > #label1.Content = 1 > > def Button_Click(self, sender, e): > #label1.Content += 1 > pass > > if __name__ == '__main__': > Application().Run(MyWindow()) > > > Any attempt I make to execute either of the commented out lines that > reference label1 cause a fault. > > What is the proper way to reference a XAML object from IPY code in a WPF > app? > > Obviously, I’m having trouble referencing a control defined in XAML from the > IPY code. > I suspect I’m missing something that should be obvious to me but isn’t, and > I’d appreciate a pointer as to what I need to do/learn. > > FYI – here the equiv VB WFP app that worked first time: > Here is the VB XAML: > > <Window x:Class="MainWindow" > xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"; > xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"; > Title="MainWindow" Height="350" Width="525"> > <Grid> > <Button Content="Button" Height="74" HorizontalAlignment="Left" > Margin="83,31,0,0" Name="Button1" VerticalAlignment="Top" Width="162" > DataContext="{Binding ElementName=Button1}" /> > <Label Content="Label" Height="45" HorizontalAlignment="Left" > Margin="87,161,0,0" Name="Label1" VerticalAlignment="Top" Width="152" /> > </Grid> > </Window> > > Here is the VB code: > > Class MainWindow > Public Sub New() > ' This call is required by the designer. > InitializeComponent() > > ' Add any initialization after the InitializeComponent() call. > Label1.Content = 1 > End Sub > > Private Sub Button1_Click(sender As System.Object, e As > System.Windows.RoutedEventArgs) Handles Button1.Click > Label1.Content += 1 > End Sub > End Class > > The VB WPF app works as expected. > > Dave > > _______________________________________________ > Ironpython-users mailing list > Ironpython-users@python.org > http://mail.python.org/mailman/listinfo/ironpython-users > _______________________________________________ Ironpython-users mailing list Ironpython-users@python.org http://mail.python.org/mailman/listinfo/ironpython-users
