Bootstrap 树控件使用经验分享(图文解说)(5)
3.2 默认隐藏,触发某个事件的时候出现树。这种场景在项目里面非常常见,一般用于选择树节点。所以博主把这个也单独拿出来说下吧。
div默认是隐藏的。
<input type="text" class="form-control" id="txt_ztree" placeholder="点击文本框出现ztree" onclick="showMenu()" /> <div id="menuContent2" class="menuContent" style="display:none;position: absolute;width:95%;border:1px solid rgb(170,170,170);z-index:10;"> <ul id="treeDemo2" class="ztree" style="margin-top:0; width:160px; height:auto;"></ul> </div>
在js里面初始化树以及注册showMenu()方法
var setting2 = {
check: {
enable: true,
chkStyle: "radio",
radioType: "all"
},
view: {
dblClickExpand: false
},
data: {
simpleData: {
enable: true
}
},
callback: {
onClick: onClickNode,
onCheck: onCheck
}
};
var zNodes = [
{ id: 1, pId: 0, name: "父节点1", open: true },
{ id: 11, pId: 1, name: "父节点11" },
{ id: 111, pId: 11, name: "叶子节点111" },
{ id: 112, pId: 11, name: "叶子节点112" },
{ id: 113, pId: 11, name: "叶子节点113" },
{ id: 114, pId: 11, name: "叶子节点114" },
{ id: 12, pId: 1, name: "父节点12" },
{ id: 121, pId: 12, name: "叶子节点121" },
{ id: 122, pId: 12, name: "叶子节点122" },
{ id: 123, pId: 12, name: "叶子节点123" },
{ id: 124, pId: 12, name: "叶子节点124" },
{ id: 13, pId: 1, name: "父节点13", isParent: true },
{ id: 2, pId: 0, name: "父节点2" },
{ id: 21, pId: 2, name: "父节点21", open: true },
{ id: 211, pId: 21, name: "叶子节点211" },
{ id: 212, pId: 21, name: "叶子节点212" },
{ id: 213, pId: 21, name: "叶子节点213" },
{ id: 214, pId: 21, name: "叶子节点214" },
{ id: 22, pId: 2, name: "父节点22" },
{ id: 221, pId: 22, name: "叶子节点221" },
{ id: 222, pId: 22, name: "叶子节点222" },
{ id: 223, pId: 22, name: "叶子节点223" },
{ id: 224, pId: 22, name: "叶子节点224" },
{ id: 23, pId: 2, name: "父节点23" },
{ id: 231, pId: 23, name: "叶子节点231" },
{ id: 232, pId: 23, name: "叶子节点232" },
{ id: 233, pId: 23, name: "叶子节点233" },
{ id: 234, pId: 23, name: "叶子节点234" },
{ id: 3, pId: 0, name: "父节点3", isParent: true }
];
//初始化
$(document).ready(function () {
$.fn.zTree.init($("#treeDemo2"), setting2, zNodes);
});
//显示菜单
function showMenu() {
$("#menuContent2").css({ left: "15px", top: "34px" }).slideDown("fast");
$("body").bind("mousedown", onBodyDown);
}
//隐藏菜单
function hideMenu() {
$("#menuContent2").fadeOut("fast");
$("body").unbind("mousedown", onBodyDown);
}
function onBodyDown(event) {
if (!(event.target.id == "menuBtn" || event.target.id == "menuContent2" || event.target.id == "txt_ztree" || $(event.target).parents("#menuContent2").length > 0)) {
hideMenu();
}
}
//节点点击事件
function onClickNode(e, treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.checkNode(treeNode, !treeNode.checked, null, true);
return false;
}
//节点选择事件
function onCheck(e, treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
nodes = zTree.getCheckedNodes(true),
v = "";
var parentid = "";
var parentlevel = "";
for (var i = 0, l = nodes.length; i < l; i++) {
v += nodes[i].name + ",";
parentid += nodes[i].id + ",";
parentlevel += nodes[i].menu_level + ",";
}
if (v.length > 0) {
v = v.substring(0, v.length - 1);
parentid = parentid.substring(0, parentid.length - 1);
parentlevel = parentlevel.substring(0, parentlevel.length - 1);
}
else {
return;
}
hideMenu();
}
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