ShrlAlgoToolkit/ShrlAlgoToolkit.Revit/Assists/VisualAssist.cs

using System.Windows;
using System.Windows.Media;

namespace ShrlAlgoToolkit.Revit.Assists;

public static class VisualAssist
{
	public static T FindVisualParent<T>(FrameworkElement element, string name)
		where T : FrameworkElement
	{
		var parentElement = (FrameworkElement)VisualTreeHelper.GetParent(element);
		while (parentElement != null)
		{
			if (parentElement is T parent)
			{
				if (parentElement.Name == name)
				{
					return parent;
				}
			}

			parentElement = (FrameworkElement)VisualTreeHelper.GetParent(parentElement);
		}

		return null;
	}

	public static T FindVisualChild<T>(FrameworkElement element, string name)
		where T : Visual
	{
		for (var i = 0; i < VisualTreeHelper.GetChildrenCount(element); i++)
		{
			var childElement = (FrameworkElement)VisualTreeHelper.GetChild(element, i);
			if (childElement is T child)
			{
				if (childElement.Name == name)
				{
					return child;
				}
			}

			var descendent = FindVisualChild<T>(childElement, name);
			if (descendent != null)
			{
				return descendent;
			}
		}

		return null;
	}
}