Home > Developer > JavaScript

Javascript tree menu Method

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

Javascript tree menu Method

Seeing that yuanyou published an article about the JS tree, after reading it, I thought it was possible to streamline a lot of code,

I thought that a JS tree was used in the previous project, so I tried to modify it. Now I have posted the code to share it with you. I also ask you to throw more bricks!

<! DOCTYPE html PUBLIC "-// W 3C // Dtd xhtml 1.0 Transitional // EN "" http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">

<Html xmlns = "http://www.w3.org/1999/xhtml">

<Head runat = "server">

<Title> </title>

<Script src = "JS/Tree. js" type = "text/javascript"> </script>

</Head>

<Body>

<Form id = "form1" runat = "server">

<Div>

<% -- <Asp: TreeView ID = "TreeView1" runat = "server" ShowLines = "True">

</Asp: TreeView> -- %>

<Div id = "treeOrgan"> </div>

</Div>

</Form>

<Script type = "text/javascript" language = "javascript">

Var tree;

Window. onload = function ()

{

If (tree! = ""){

Tree = new treeview ("treeview", "../images/Tree", false, false );

Var parNode = new node ("personnel list", "personnel list", "", "0", "F", false ,"");

// Caption, title, url, target, tag, check, callback

Tree. add (parNode );

Tree. create (document. getElementById ("treeOrgan "));

InitNode (0, parNode );

ParNode. expand ();

}

}

Function InitNode (id, parNode ){

If (parNode. nodes. length> 0 ){

ParNode. toggle ();

}

Else {

// ParNode. DeleteChildren ();

Var result = WebApplicationJsTree. _ Default. GetJson (id). value;

If (result! = Null & result! = ""){

Var data = eval ('+ result + ')');

For (var I = 0; I <data. length; I ++ ){

Var pn = new node (data [I]. NAME, data [I]. NAME, "", "P", data [I]. id, true ,"");

ParNode. add (pn );

}

}

}

}

Treeview. prototype. onnodeclick = function (sender ){

InitNode (sender. tag, sender );

Sender. select ();

Sender. expand ();

Return false;

}

</Script>

</Body>

</Html>

In fact, I personally think that using TreeView + linq to list will connect to the server once, and the performance of small data volumes should be quite high. The Code is also in the source package.

In the interaction with the client, you can add

Tn. Text = "<span onclick = \" treeNodeClick ("+ tn. ID +") \ ">" + tn. Name;

Database Structure:

FF:

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More