/* * Copyright (c) 2022 LG Electronics Inc. * SPDX-License-Identifier: LicenseRef-LGE-Proprietary */ using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Data; using System.Windows; namespace AuroraUIComponent.UIConverter { public class NullFalseConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { return !(value is null); } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw new NotImplementedException(); } } public class NullCollapseConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value is null) return Visibility.Collapsed; if (value is string strValue && string.IsNullOrEmpty(strValue)) return Visibility.Collapsed; return Visibility.Visible; } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw new NotImplementedException(); } } }