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Find Visual Child

//http://simpledbbrowser.codeplex.com/ //License:  Microsoft Public License (Ms-PL)   using System.Diagnostics; using System.IO; using System.Runtime.Serialization.Formatters.Binary; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; namespace AWS.Framework.WPF.Utility {     public sealed class Helpers     {         public static childItem FindVisualChild<childItem>(DependencyObject obj) where childItem : DependencyObject         {             for (int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++)             {                 DependencyObject child = VisualTreeHelper.GetChild(obj, i);                 if (child != null && child is childItem)                     return (childItem)child;                 else                 {                     childItem childOfChild = FindVisualChild<childItem>(child);                     if (childOfChild != null)                         return childOfChild;                 }             }             return null;         }    } }