Friday, 9 December 2016

Create a IValueConverter in WPF

In this Post we are going to see how to create a converter in WPF, we are going to disable a button based on input, for this we are going to convert the bool to Visibility type.


Converter:

    class EdittoVisiblityConvertor : IValueConverter
    {
        public object Convert(object value, Type targetType, 
          object parameter, CultureInfo culture)
        {
            bool val;
            bool.TryParse(value.ToString(), out val);
            if (val)
                return Visibility.Visible;
            else
                return Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, 
           object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }



Binding Converter to Xaml

 <Button Content="Save" Command="{Binding SaveCommand}"
                Visibility="{Binding EditMode ,
                Converter={StaticResource EditConvertor}}"
                Width="75"></Button>





From this post you can learn how to create a converter in WPf

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