How to find the visual parent or child element using VisualTreeHelper

VisualTreeHelper is very useful class which help us to find or drill-down element from the hosted container.

The following method will help you to find the visual parent element from the container.

public static T FindVisualParent<T>(UIElement element) where T : UIElement     {         UIElement parent = element;         while (parent != null)         {             T correctlyTyped = parent as T;             if (correctlyTyped != null)             {                 return correctlyTyped;             }             parent = VisualTreeHelper.GetParent(parent) as UIElement;         }         return null;     }

The following method will help you to find the child element from the container.

public static T FindChild<T>(DependencyObject parent)where T : DependencyObject     {         if (parent == null) return null;         T childElement = null;         int childrenCount = VisualTreeHelper.GetChildrenCount(parent);         for (int i = 0; i < childrenCount; i++)         {             var child = VisualTreeHelper.GetChild(parent, i);             T childType = child as T;             if (childType == null)             {                 childElement = FindChild<T>(child);                 if (childElement != null) break;             }             else             {                 childElement = (T)child;                 break;             }         }         return childElement;     }