|
public ConvertBack ( object value, Type targetType, object parameter, |
||
| value | object | The visibility value that is to be converted. |
| targetType | Type | The type to which the value is to be converted. In this case it is always |
| parameter | object | A parameter for the conversion. Not used in this converter, so it should always be null. |
| culture | The culture information of the current culture, so that parsing can be adjusted to cultural conventions. | |
| return | object | |
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is Visibility vis)
{
return(vis == Visibility.Visible);
}
return(core.ConvertBack(value, targetType, parameter, culture));
}
/// <summary>
/// Converts a <see cref="Visibility"/> enumeration value to a <see cref="bool"/> value.
/// </summary>
/// <param name="value">The <see cref="Visibility"/> enumeration value to convert.</param>
/// <param name="targetType">This parameter is not used.</param>
/// <param name="parameter">This parameter is not used.</param>
/// <param name="culture">This parameter is not used.</param>
/// <returns>Returns false if the value is <see cref="Visibility.Visible"/>, otherwise true.</returns>
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is Visibility)
{
return(!((bool)converter.ConvertBack(value, targetType, parameter, culture)));
}
else
{
throw new InvalidOperationException("The value parameter must be of type System.Windows.Visibility.");
}
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
var ret = _converter.ConvertBack(value, targetType, parameter, culture);
return((bool)ret);
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var c = new BooleanToVisibilityConverter();
return !(bool)c.ConvertBack(value, targetType, parameter, culture);
}