public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
FlagPanel panel = parameter as FlagPanel;
string str = string.Empty;
for (int i = 0; i < panel.Children.Count; i++)
{
if ((i != this.index && ((bool)(panel.Children[i] as CheckBox).IsChecked)) ||
(i == this.index && (bool)value))
{
if (!string.IsNullOrEmpty(str))
{
str += ", ";
}
str += (panel.Children[i] as CheckBox).Content.ToString();
}
}
if (string.IsNullOrEmpty(str))
{
Type flagType = panel.FlagType;
Fx.Assert(flagType != null && flagType.IsEnum, "FlagType should be enum");
Fx.Assert(Attribute.IsDefined(flagType, typeof(FlagsAttribute)), "FlagType should have flags attribute");
return(Enum.ToObject(flagType, 0).ToString());
}
return(str);
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
string str = (value as string).ToUpperInvariant();
FlagPanel panel = parameter as FlagPanel;
if (str.Contains((panel.Children[this.index] as CheckBox).Content.ToString().ToUpperInvariant()))
{
return(true);
}
else
{
return(false);
}
}
static void OnFlagTypeChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
Type flagType = args.NewValue as Type;
Fx.Assert(flagType == null || flagType.IsEnum, "FlagType should be null or enum");
Fx.Assert(flagType == null || Attribute.IsDefined(flagType, typeof(FlagsAttribute)), "FlagType should be null or have flags attribute");
if (flagType == null)
{
return;
}
int index = 0;
FlagPanel panel = sender as FlagPanel;
string[] flagNames = flagType.GetEnumNames();
string zeroValueString = Enum.ToObject(flagType, 0).ToString();
foreach (string flagName in flagNames)
{
if (zeroValueString.Equals("0") || !flagName.Equals(zeroValueString))
{
CheckBox checkBox = new CheckBox();
panel.Children.Add(checkBox);
checkBox.Content = flagName;
checkBox.DataContext = panel;
checkBox.SetValue(AutomationProperties.AutomationIdProperty, flagName);
Binding binding = new Binding("FlagString");
binding.Mode = BindingMode.TwoWay;
binding.Converter = new CheckBoxStringConverter(index);
binding.ConverterParameter = panel;
checkBox.SetBinding(CheckBox.IsCheckedProperty, binding);
index++;
}
}
}
