ASP.NET的TreeView排序 [英] ASP.NET TreeView sort

问题描述

我习惯的WinForm TreeView控件其具有自动管理节点排序一个排序属性。
我现在必须按字母顺序排序的ASP.NET TreeView控件，我很惊讶，我找不到任何类似的属性或回调方法。

I am accustomed to winform TreeView having a Sorted property which automatically manages nodes sorting. I now have to alphabetically sort an ASP.NET TreeView and I'm surprised I cannot find any similar property or callback method.

有没有什么办法来自动实现ASP.NET这个操作还是我不得不手动排序和插入我的节点以正确的顺序？

Is there any way to automatically achieve this operation in ASP.NET or do I have to manually sort and insert my nodes in correct order?

推荐答案

您需要编写自己的排序功能，但其合理的琐碎添加此功能。

You'll need to write your own sorting function but its reasonably trivial to add this functionality.

的http：// blog.mdk-photo.com/post/C-Extentionmethod-Tree-Node-View-Sort().aspx

.NET 3.5支持扩展方法，这样你就可以以pre-现有系统类添加功能。注意的方法的参数这种语法。 <一href=\"http://weblogs.asp.net/scottgu/archive/2007/03/13/new-orcas-language-feature-extension-methods.aspx\"相对=nofollow>更多信息这里

.NET 3.5 supports extension methods so you can add functionality to pre-existing System Classes. Notice the this syntax on the method parameter. More Info Here

public static void Sort(this TreeView tv)
{
    TreeNodeCollection T = tv.Nodes.Sort();
    tv.Nodes.Clear();
    tv.Nodes.AddRange(T);
}

public static void Sort(this TreeNode tn)
{
    TreeNodeCollection T = tn.ChildNodes.Sort();
    tn.ChildNodes.Clear();
    tn.ChildNodes.AddRange(T);
}

第一个链接包含$ C $其余c您将需要完成排序功能

The first link contains the rest of the code you'll need to complete the sorting functionality

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