using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media; namespace TestSeagate.Common
{
class UIAssociate
{
/// <summary>
/// 查找第一个父节点是T类型的节点，并返回。
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dobj"></param>
/// <returns></returns>
public static T GetAncestor<T>(DependencyObject dobj) where T : FrameworkElement
{
DependencyObject parent = VisualTreeHelper.GetParent(dobj);//可视树 深入内部
while (!(parent is T) && parent != null)
{
parent = VisualTreeHelper.GetParent(parent);
}
if (parent != null)
{
return (T)parent;
} else
{
return null;
}
}
/// <summary>
/// 查找所有满足条件的子节点，
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="depen"></param>
/// <param name="childname"></param>
/// <returns></returns>
public static List<T> GetChildren<T>(DependencyObject depen,string childname=null) where T:FrameworkElement
{
DependencyObject child = null;
List<T> lists = new List<T>();
for(int i=0;i<VisualTreeHelper.GetChildrenCount(depen);i++)
{
child = VisualTreeHelper.GetChild(depen,i);
if((child is T)&&(((T)child).Name==childname||string.IsNullOrEmpty(childname)))
{
lists.Add((T)child);
}
lists.AddRange(GetChildren<T>(child, childname));
}
return lists;
}
}
}