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QuestionStuck with Weird Exceptions Pin
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QuestionGet MainWindow from Executing Assembly Pin
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Richard Deeming27-Jul-21 23:18
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GeneralCan anyone recommend a free WPF editor control? Pin
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QuestionInstalling Test Mode vs Production Mode Pin
Kevin Marois19-Jul-21 8:55
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QuestionRouted Event Args Null Pin
Kevin Marois28-Jun-21 16:28
professionalKevin Marois28-Jun-21 16:28 
I have a user control with a custom Routed Event. I'm trying to pass event args:
public class NavigationViewFilterEventArgs : RoutedEventArgs
    public List<LookupEntity> StatusFilters { get; private set; }

    public List<LookupEntity> FilterItems { get; private set; }

    public NavigationViewFilterEventArgs(RoutedEvent e, List<LookupEntity> statusFilters, List<LookupEntity> filterItems) :
        StatusFilters = statusFilters;
        FilterItems = filterItems;
Here's the UserControl code behind:
public static readonly RoutedEvent FilterExecutedEvent =

public event RoutedEventHandler FilterExecuted
    add { AddHandler(FilterExecutedEvent, value); }
    remove { RemoveHandler(FilterExecutedEvent, value); }

private void RaiseFilterExecutedEvent()
    var args = new NavigationViewFilterEventArgs(FilterExecutedEvent, StatusFilters, FilterItems);
The control is on the Main Window:
<ctrls:NavigationView Grid.Row="7" 
                        StatusFilters="{Binding DataContext.CompanyStatusFilterItems, 
                                                ElementName=window, Mode=TwoWay, 

        <i:EventTrigger EventName="FilterExecuted">
            <i:InvokeCommandAction Command="{Binding DataContext.CompanyFilterExecutedEventCommand, 

And finally the handler in the Main Window view model:
private ICommand _CompanyFilterExecutedEventCommand;
public ICommand CompanyFilterExecutedEventCommand
        if (_CompanyFilterExecutedEventCommand == null)
            _CompanyFilterExecutedEventCommand = new RelayCommand<NavigationViewFilterEventArgs>(p => CompanyFilterExecutedEventExecuted(p), p => CompanyFilterExecutedEventCanExecute());
        return _CompanyFilterExecutedEventCommand;

private bool CompanyFilterExecutedEventCanExecute()
    return true;

private void CompanyFilterExecutedEventExecuted(NavigationViewFilterEventArgs args)

When I run this and click the button, the event reaches the Main Window VM's CompanyFilterExecutedEventExecuted method, but the param is always null.

I could use some help here.
If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

AnswerRe: Routed Event Args Null Pin
Richard Deeming28-Jun-21 22:34
mveRichard Deeming28-Jun-21 22:34 
QuestionHow to change background color in combobox in code behind? Pin
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