using System.Windows.Data; using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Media; namespace AIStudio.Wpf.DiagramDesigner.Additionals.Converters { public class IndentConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { double colunwidth = 10; double left = 0.0; UIElement element = value as TreeViewItem; while (element.GetType() != typeof(TreeView)) { element = (UIElement)VisualTreeHelper.GetParent(element); if (element.GetType() == typeof(TreeViewItem)) left += colunwidth; } return new Thickness(left, 0, 0, 0); } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw new NotImplementedException(); } } }