WPF 查找控件的所有子控件

        /// 

        /// 查找子控件
        /// 
        /// 控件类型
        /// 父控件依赖对象
        /// 子控件列表
        public static void FindVisualChild(DependencyObject parent, ref List lstT) where T : DependencyObject
        {
            if (parent != null)
            {
                T child = default(T);
                int numVisuals = VisualTreeHelper.GetChildrenCount(parent);
                for (int i = 0; i )
                {
                    Visual v = (Visual)VisualTreeHelper.GetChild(parent, i);
                    child = v as T;
                    if (child != null)
                    {
                        lstT.Add(child);
                    }
                    FindVisualChild(v, ref lstT);
                }
            }
        }

        private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            DataGridRow currentRow = (DataGridRow)dgdRel.ItemContainerGenerator.ContainerFromIndex(dgdRel.SelectedIndex);   //获取当前行
            if (currentRow != null)
            {
                List lstControl = new List();
                FormDispose.FindVisualChild(currentRow, ref lstControl);  //获取当前行内所有的控件
                if (lstControl != null)
                {
                   //子控件的处理代码
                }
            }
        }