public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
{
return(false);
}
var channel = (ChannelInstance)value;
return(SelectedChannels.Contains(channel.Configuration.ChannelId));
}
void ToggleChannelInstance(ChannelInstance channel)
{
if (SelectedChannels.Contains(channel.Configuration.ChannelId))
{
SelectedChannels.Remove(channel.Configuration.ChannelId);
}
else
{
SelectedChannels.Add(channel.Configuration.ChannelId);
}
// Forces a propertychanged event, which resets our toggle button
channel.IsVisible = channel.IsVisible;
OnPropertyChanged("HasTwitter");
}