wpf listbox change individual items to bold

Question

I want some of the items to be bold depending on a property of an object i'm putting into the listbox.

I think you can do it with changing templates but can't seem to find an example.

Thanks!

Answer 1

You can do it more simply than that if you use a converter (IntToFontWeightConverter, for example).

Set up an item template:

 <DataTemplate x:Key="BoldTemplate">
    <TextBlock
        FontWeight="{Binding Path=Position, Converter={StaticResource IntToFontWeightConverter}}"
        Text="{Binding Path=Name}" 
        />
</DataTemplate>     

where Name is what you want to display, and Position is your property that you are basing the bold / normal on.

Create your converter (depending on the type of the property that you base the bold on).

class IntToFontWeightConverter :IValueConverter 
{
    #region IValueConverter Members

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if ((int)value == 1)
        {
            return FontWeights.Bold;
        }

        return FontWeights.Normal;
    }

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

    #endregion
}