public object Convert(object value, Type targetType, object parameter, Culture culture)
{
// Validate
if (!(value is Location))
{
throw new InvalidOperationException("Only Location is supported as a source.");
}
if (targetType != typeof(Visibility))
{
throw new InvalidOperationException("Only Visibility is supported as the target type");
}
// Cast to proper types
Location loc = (Location)value;
// If it's unknown the item shouldn't be shown
if (loc.IsUnknown())
{
return(Visibility.Collapsed);
}
else
{
return(Visibility.Visible);
}
}
