C#•2y ago

Set foreground back to default color using csharp

            <TextBox Header="Name"
                     MinWidth="250"
                     Grid.ColumnSpan="2"
                     PlaceholderText="Your pet name"
                     Text="{x:Bind Name, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                     Foreground="{x:Bind NameErrorsList.Count, 
                                         Mode=OneWay, 
                                         Converter={StaticResource ErrorListToForegroundConverter}}"/>

            <TextBox Header="Name"
                     MinWidth="250"
                     Grid.ColumnSpan="2"
                     PlaceholderText="Your pet name"
                     Text="{x:Bind Name, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                     Foreground="{x:Bind NameErrorsList.Count, 
                                         Mode=OneWay, 
                                         Converter={StaticResource ErrorListToForegroundConverter}}"/>

    public class ErrorListToForegroundConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            var errorCount = (int)value;
            return errorCount != 0 ? new SolidColorBrush(Colors.Yellow) : null;
        }
        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }
    }

    public class ErrorListToForegroundConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            var errorCount = (int)value;
            return errorCount != 0 ? new SolidColorBrush(Colors.Yellow) : null;
        }
        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }
    }

My textbox is not turn back to default foreground when being input or focus When lose focus and refocus again I apply the default foreground I think the problem is in here

return errorCount != 0 ? new SolidColorBrush(Colors.Yellow) : null

return errorCount != 0 ? new SolidColorBrush(Colors.Yellow) : null

when change the null to new SolidColorBrush(Colors.Green) It react and turn green even when being focus does anyone know how to set the textbox foreground back to default color using C# ?

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Set foreground back to default color using csharp