using System.Globalization; namespace autosos_maui.Converters; public class BoolNegationConverter: IValueConverter { public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture) { if (value is bool boolValue) { return !boolValue; // 返回布尔值的相反值 } return value; // 返回原始值(或者你可以返回默认的可见性) } public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture) { throw new NotImplementedException(); } }