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wg-basic-doc/docs/code-template/list-select.md

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# 列表选择
> 以用户选择为例
1. 页面通过弹窗打开
2. 页面支持单选与多选
3. 页面关闭后返回选择结果
完整选择页面代码代码
```html
<!doctype html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<base th:href="${#request.getContextPath() + '/'}">
<meta charset="utf-8">
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0">
<link rel="stylesheet" href="assets/fonts/font-awesome/css/font-awesome.css"/>
<link rel="stylesheet" href="assets/js/vendor/viewer/viewer.min.css">
<link rel="stylesheet" href="assets/layuiadmin/layui/css/layui.css" media="all">
<link rel="stylesheet" href="assets/layuiadmin/style/admin.css" media="all">
</head>
<body>
<div class="layui-anim layui-anim-fadein">
<div class="layui-row">
<div class="layui-col-md12">
<div class="layui-card">
<div class="layui-card-body">
<div class="test-table-reload-btn" style="margin-bottom: 10px;">
<div class="layui-inline">
<input type="text" id="keywords" class="layui-input search-item" placeholder="输入用户名、昵称">
</div>
<button type="button" id="search" class="layui-btn layui-btn-sm">
<i class="fa fa-lg fa-search"></i> 搜索
</button>
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<!-- 确定按钮 -->
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<button type="button" class="layui-btn layui-btn-sm layui-btn-normal" id="confirm" style="float:right;">确定</button>
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<!-- 确定按钮 -->
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</div>
<table class="layui-hide" id="dataTable" lay-filter="dataTable"></table>
</div>
</div>
</div>
</div>
</div>
<script src="assets/layuiadmin/layui/layui.js"></script>
<script th:inline="javascript">
layui.config({
base: 'assets/layuiadmin/'
}).extend({
index: 'lib/index'
}).use(['index', 'table', 'laydate', 'upload'], function() {
var $ = layui.$;
var $win = $(window);
var table = layui.table;
var admin = layui.admin;
var layer = layui.layer;
var laydate = layui.laydate;
var selectType = top.restAjax.params(window.location.href).selectType;
selectType = selectType ? selectType : 'radio';
// 已经选择的列表
var selectedIdArray = top.dialog.dialogData.selectedIdArray ? top.dialog.dialogData.selectedIdArray : [];
// 将新的选择列表置空
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top.dialog.dialogData.newSelectedArray = null;
// 正在选择
var selectMap = {};
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var tableData = [];
var tableUrl = 'api/teacher/listpage-user-unselected';
// 初始化已选择的列表
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function initSelectMap() {
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for(var i = 0, item; item = selectedIdArray[i++];) {
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selectMap[item] = {
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userId: item
}
}
}
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initSelectMap();
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// 初始化表格
function initTable() {
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// 设置选择类型
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$.extend(table, {config: {checkName: 'checked'}});
table.render({
elem: '#dataTable',
id: 'dataTable',
url: top.restAjax.path(tableUrl, []),
width: admin.screen() > 1 ? '100%' : '',
height: $win.height() - 60,
limit: 20,
limits: [20, 40, 60, 80, 100, 200],
toolbar: '#headerToolBar',
request: {
pageName: 'page',
limitName: 'rows'
},
cols: [
[
{type: selectType, fixed: 'left'},
{field:'rowNum', width:80, title: '序号', fixed: 'left', align:'center', templet: '<span>{{d.LAY_INDEX}}</span>'},
{field:'userUsername', width:140, title: '用户名', sort: true, align:'center',
templet: function(rowData) {
return '<a href="javascript:void(0);" lay-event="userUsernameEvent">'+ rowData.userUsername +'</a>';
}
},
{field:'userName', width:140, title: '昵称', sort: true, align:'center'},
]
],
page: true,
parseData: function(data) {
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// 默认勾选
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for(var i = 0, item; item = data.rows[i++];) {
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if(selectMap[item.userId]) {
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item.checked = true;
// 重新赋值：在打开界面后直接确定关闭页面时回显正常
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selectMap[item.userId] = item;
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} else {
item.checked = false;
}
}
tableData = data.rows;
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// 默认勾选
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return {
'code': 0,
'msg': '',
'count': data.total,
'data': data.rows
};
}
});
}
// 重载表格
function reloadTable(currentPage) {
table.reload('dataTable', {
url: top.restAjax.path(tableUrl, []),
where: {
keywords: $('#keywords').val(),
},
page: {
curr: currentPage
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}
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});
}
initTable();
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// 关闭
function close() {
parent.layer.close(parent.layer.getFrameIndex(window.name));
}
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/**
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* 清空选择
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*/
function clearSelect() {
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selectMap = {};
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}
/**
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* 添加选择
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* @param item
*/
function addSelect(item) {
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selectMap[item.userId] = item;
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}
/**
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* 删除选择
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* @param item
*/
function removeSelect(item) {
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delete selectMap[item.userId];
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}
// 勾选事件
table.on('checkbox(dataTable)', function(obj) {
if(obj.type === 'all') {
if(obj.checked) {
// 添加全部
for(var i = 0, item; item = tableData[i++];) {
addSelect(item);
}
} else {
// 删除全部
for(var i = 0, item; item = tableData[i++];) {
removeSelect(item);
}
}
} else {
if(obj.checked) {
addSelect(obj.data);
} else {
removeSelect(obj.data);
}
}
});
// 勾选事件
table.on('radio(dataTable)', function(obj) {
clearSelect()
addSelect(obj.data);
});
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// 事件 - 确定
$(document).on('click', '#confirm', function() {
top.dialog.dialogData.newSelectedArray = [];
for(var key in selectMap) {
top.dialog.dialogData.newSelectedArray.push(selectMap[key]);
}
close();
});
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// 事件 - 搜索
$(document).on('click', '#search', function() {
reloadTable(1);
});
});
</script>
</body>
</html>
```
打开页面
```javascript
// 已经选择的ID列表
top.dialog.dialogData.selectedIdArray = [$('#userId').val()];
top.dialog.open({
// 打开页面，指定选择框类型
url: 'route/teacher/list-user-unselected?selectType=radio',
title: '选择用户',
width: '1000px',
height: '500px',
onClose: function() {
// 获取选择后的列表
var newSelectedArray = top.dialog.dialogData.newSelectedArray;
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if(newSelectedArray && newSelectedArray.length != 0) {
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// 处理选择结果
$('#userId').val(newSelectedArray[0].userId);
$('#userName').val(newSelectedArray[0].userName);
}
}
});
```
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