逻辑树(LogicTree)和可视化树(VisualTree)

FrameworkElement Level.(FrameworkElement Type).(FrameworkElement Name) [DataContext Type]

public static class TreeHelper
{
   public static string getTree(FrameworkElement container)
    {
        StringBuilder sb = new StringBuilder();
        sb.AppendLine("********Logical Tree********");
        getLogicalChildren(container, sb, 0);
        sb.AppendLine();

        sb.AppendLine("********Visual Tree********");
        getVisualChildren(container, sb, 0);
        sb.AppendLine();

        return sb.ToString();
    }

    private static void appendLine(FrameworkElement frameworkElement, StringBuilder sb, int num)
    {
        sb.Append("".PadLeft(num));

        string name = $"({frameworkElement.GetType().Name})";
        name += $"({frameworkElement.Name})";
        name += $" [{(frameworkElement.DataContext ?? new object()).GetType().Name}]";

        sb.AppendLine($"{num}.{name}");
    }

    private static void getLogicalChildren(FrameworkElement container, StringBuilder sb, int num)
    {
        appendLine(container, sb, num); // 遍历逻辑树，对每个节点进行处理
        foreach (var child in LogicalTreeHelper.GetChildren(container))
        {
            FrameworkElement frameworkElement = child as FrameworkElement;
            if (frameworkElement != null)
            {
                getLogicalChildren(frameworkElement, sb, num + 1);
            }
        }
    }

    private static void getVisualChildren(FrameworkElement container, StringBuilder sb, int num)
    {
        appendLine(container, sb, num); // 遍历可视化树，对每个节点进行处理
        int count = VisualTreeHelper.GetChildrenCount(container);
        for (int i = 0; i < count; i++)
        {
            FrameworkElement frameworkElement = VisualTreeHelper.GetChild(container, i) as FrameworkElement;
            if (frameworkElement != null)
            {
                getVisualChildren(frameworkElement, sb, num + 1);
            }
        }
    }
}