wpf – Page 75 – Tarik Billa

How to bind inverse boolean properties in WPF?

September 19, 2022 by Tarik

You can use a ValueConverter that inverts a bool property for you. XAML: IsEnabled=”{Binding Path=IsReadOnly, Converter={StaticResource InverseBooleanConverter}}” Converter: [ValueConversion(typeof(bool), typeof(bool))] public class InverseBooleanConverter: IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (targetType != typeof(bool)) throw new InvalidOperationException(“The target must be a boolean”); return !(bool)value; } public … Read more

The name ‘InitializeComponent’ does not exist in the current context

September 16, 2022 by Tarik

I’ve encountered this a couple times and keep forgetting what causes it. I ran into this when I renamed the namespace on my code behind file but not in my XAML. So check if you’ve done the same. The namespace and class names need to match since they are both part of a partial class … Read more

How to bind RadioButtons to an enum?

September 16, 2022 by Tarik

You can further simplify the accepted answer. Instead of typing out the enums as strings in xaml and doing more work in your converter than needed, you can explicitly pass in the enum value instead of a string representation, and as CrimsonX commented, errors get thrown at compile time rather than runtime: ConverterParameter={x:Static local:YourEnumType.Enum1} <StackPanel> … Read more