easyui Combotree 怎么加载数据 支持多选
1、开发环境vs2012 mvc4 c#
2、HTML前端代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="DataGridTest.aspx.cs" Inherits="MvcAppTest.DataGridTest" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<link href="Easyui/themes/default/easyui.css" rel="stylesheet" />
<script src="Easyui/jquery-1.7.2.min.js"></script>
<script src="Easyui/jquery.easyui.min.js"></script>
<script src="Easyui/locale/easyui-lang-zh_CN.js"></script>
<script src="IndusJS/kzEasyuiCombotree.js"></script>
<style type="text/css">
/*.datagrid-btable .datagrid-cell{overflow: hidden;text-overflow:ellipsis;white-space: nowrap;}
.datagrid-header {position: absolute; visibility: hidden;}*/
</style>
<script type="text/javascript">
var $winPro;
$(function () {
showProTree();
$winPro = $('#test-windowPro').window({
title: '企业存在困难',
width: 400,
height: 300,
shadow: true,
modal: true,
iconCls: 'icon-add',
closed: true,
minimizable: false,
maximizable: false,
collapsible: false,
buttons: [{
text: '添加',
handler: function () {
}
}]
});
});
function showProTree() {
$("#IDPro").combotree({
url: 'Home/HandlerProblemFromFile',
valueField: 'id',
textField: 'text',
width: 250,
multiple: true, //这个选项设置多选功能
onClick: function (node) {
},
panelHeight: 300,
editable: true,
onLoadSuccess: function (node, data) {
$(this).tree('collapseAll'); //关闭树节点
var root = $(this).tree("getRoot"); //展开根节点
if (root != null) {
$(this).tree("expand", root.target);
var childrens = $(this).tree("getChildren", root.target);
for (var i = 0; i < childrens.length; i++) {
if (childrens[i].id == '0') {
$(this).tree("expand", childrens[i].target);
}
}
}
}
});
$(".combo-text").bind("input propertychange", function () {
$('#IDPro').combotree('tree').tree("search", $(this).val());
if ($(this).val() == "" || null == $(this).val()) {
$('#IDPro').combotree('tree').tree("expandAll");
}
});
}
function testPro() {
var tree = $('#IDPro').combotree('tree');
//获取当前选中的节点
var data = tree.tree('getChecked');
if (data) {
if (data.length > 0) {
var str = new Array();
for (var i = 0; i < data.length; i++) {
str.push(data[i].text);
}
var myStr = str.join(',');
$('#PROBLEMITEM').val(myStr);
$winPro.window('close');
}
}
}
function testPro01()
{ $winPro.window('close'); }
function SelectPro() {
$winPro.window('open');
}
</script>
</head>
<body>
<div>
<table id="wg"></table>
</div>
<br />
<input type="text" id="PROBLEMITEM" value="" />
<input style="width:100px;height:31px;" type="button" value="选择" onclick="SelectPro()" />
<div id="test-windowPro" class="easyui-window" title="Login" style="width: 600px; height: 450px;">
<div style="padding:10px 0px 0px 20px;">
<input id="IDPro" value="" />
</div>
<div style="margin-top:15px;text-align:center;"><input type="button" style="width:100px;" onclick="testPro()" value="选择" /> <input type="button" style="width:100px;" onclick="testPro01()" value="取消" /></div>
</div>
</body>
</html>
3、后台代码
public ActionResult HandlerProblemFromFile()
{
string path = Server.MapPath("~/loaclData/tree_data4.json");
return File(path, "application/json");
}
4、项目结构
5、tree_data4.json
[
{
"id":1,
"text":"土地"
},
{
"id":2,
"text":"资金"
},
{
"id":3,
"text":"水电"
},
{
"id":4,
"text":"基础设施"
},
{
"id":5,
"text":"手续审批"
},
{
"id":6,
"text":"市场"
},
{
"id":7,
"text":"招工"
}
]
6、kzEasyuiCombotree.js
(function ($) {
//扩展combotree搜索功能
$.extend($.fn.tree.methods, {
search: function (jqTree, searchText) {
// easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法
var tree = this;
// 获取所有的树节点
var nodeList = getAllNodes(jqTree, tree);
// 如果没有搜索条件，则展示所有树节点
searchText = $.trim(searchText);
console.log(searchText);
if (searchText == "") {
console.log('控制');
for (var i = 0; i < nodeList.length; i++) {
$(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted");
$(nodeList[i].target).show();
}
// 展开已选择的节点（如果之前选择了）
var selectedNode = tree.getSelected(jqTree);
if (selectedNode) {
tree.expandTo(jqTree, selectedNode.target);
}
return;
}
// 搜索匹配的节点并高亮显示
var matchedNodeList = [];
if (nodeList && nodeList.length > 0) {
var node = null;
for (var i = 0; i < nodeList.length; i++) {
node = nodeList[i];
if (isMatch(searchText, node.text)) {
matchedNodeList.push(node);
}
}
// 隐藏所有节点
for (var i = 0; i < nodeList.length; i++) {
$(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted");
$(nodeList[i].target).hide();
}
// 折叠所有节点
tree.collapseAll(jqTree);
// 展示所有匹配的节点以及父节点
for (var i = 0; i < matchedNodeList.length; i++) {
showMatchedNode(jqTree, tree, matchedNodeList[i]);
}
}
},
showChildren: function (jqTree, node) {
// easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法
var tree = this;
// 展示子节点
if (!tree.isLeaf(jqTree, node.target)) {
var children = tree.getChildren(jqTree, node.target);
if (children && children.length > 0) {
for (var i = 0; i < nodeList.length; i++) {
if ($(children[i].target).is(":hidden")) {
$(children[i].target).show();
}
}
}
}
},
scrollTo: function (jqTree, param) {
// easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法
var tree = this;
// 如果node为空，则获取当前选中的node
var targetNode = param && param.targetNode ? param.targetNode : tree.getSelected(jqTree);
if (targetNode != null) {
// 判断节点是否在可视区域
var root = tree.getRoot(jqTree);
var $targetNode = $(targetNode.target);
var container = param && param.treeContainer ? param.treeContainer : jqTree.parent();
var containerH = container.height();
var nodeOffsetHeight = $targetNode.offset().top - container.offset().top;
if (nodeOffsetHeight > (containerH - 30)) {
var scrollHeight = container.scrollTop() + nodeOffsetHeight - containerH + 30;
container.scrollTop(scrollHeight);
}
}
}
});
function showMatchedNode(jqTree, tree, node) {
// 展示所有父节点
$(node.target).show();
$(".tree-title", node.target).addClass("tree-node-targeted");
var pNode = node;
while ((pNode = tree.getParent(jqTree, pNode.target))) {
$(pNode.target).show();
}
// 展开到该节点
tree.expandTo(jqTree, node.target);
// 如果是非叶子节点，需折叠该节点的所有子节点
if (!tree.isLeaf(jqTree, node.target)) {
tree.collapse(jqTree, node.target);
}
}
function isMatch(searchText, targetText) {
return $.trim(targetText) != "" && targetText.indexOf(searchText) != -1;
}
function getAllNodes(jqTree, tree) {
var allNodeList = jqTree.data("allNodeList");
if (!allNodeList) {
var roots = tree.getRoots(jqTree);
allNodeList = getChildNodeList(jqTree, tree, roots);
jqTree.data("allNodeList", allNodeList);
}
return allNodeList;
}
function getChildNodeList(jqTree, tree, nodes) {
var childNodeList = [];
if (nodes && nodes.length > 0) {
var node = null;
for (var i = 0; i < nodes.length; i++) {
node = nodes[i];
childNodeList.push(node);
if (!tree.isLeaf(jqTree, node.target)) {
var children = tree.getChildren(jqTree, node.target);
childNodeList = childNodeList.concat(getChildNodeList(jqTree, tree, children));
}
}
}
return childNodeList;
}
})(jQuery);
7、easyUI引用文件
链接：https://pan.baidu.com/s/1KxL2QeVEbEVHU9UxV6LBWw
提取码：cwbd
作者:学习靠自己
出处:http://www.cnblogs.com/net064/
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