This sample shows how to implement client side pagination in TreeGrid.
| Task Name | Persons | Begin Date | End Date | Progress |
|---|
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Client Side Pagination in TreeGrid - jQuery EasyUI Demo</title>
<link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="../../themes/icon.css">
<link rel="stylesheet" type="text/css" href="../demo.css">
<script type="text/javascript" src="../../jquery.min.js"></script>
<script type="text/javascript" src="../../jquery.easyui.min.js"></script>
</head>
<body>
<h2>Client Side Pagination in TreeGrid</h2>
<p>This sample shows how to implement client side pagination in TreeGrid.</p>
<div style="margin:20px 0;"></div>
<table id="tg" title="Client Side Pagination" style="width:700px;height:250px"
data-options="
iconCls: 'icon-ok',
rownumbers: true,
animate: true,
collapsible: true,
fitColumns: true,
url: 'treegrid_data2.json',
method: 'get',
idField: 'id',
treeField: 'name',
pagination: true,
pageSize: 2,
pageList: [2,5,10]
">
<thead>
<tr>
<th data-options="field:'name',width:180">Task Name</th>
<th data-options="field:'persons',width:60,align:'right'">Persons</th>
<th data-options="field:'begin',width:80">Begin Date</th>
<th data-options="field:'end',width:80">End Date</th>
<th data-options="field:'progress',width:120,formatter:formatProgress">Progress</th>
</tr>
</thead>
</table>
<script type="text/javascript">
(function($){
function pagerFilter(data){
if ($.isArray(data)){ // is array
data = {
total: data.length,
rows: data
}
}
var dg = $(this);
var state = dg.data('treegrid');
var opts = dg.treegrid('options');
var pager = dg.treegrid('getPager');
pager.pagination({
onSelectPage:function(pageNum, pageSize){
opts.pageNumber = pageNum;
opts.pageSize = pageSize;
pager.pagination('refresh',{
pageNumber:pageNum,
pageSize:pageSize
});
dg.treegrid('loadData',state.originalRows);
}
});
if (!state.originalRows){
state.originalRows = data.rows;
}
var topRows = [];
var childRows = [];
$.map(state.originalRows, function(row){
row._parentId ? childRows.push(row) : topRows.push(row);
});
data.total = topRows.length;
var start = (opts.pageNumber-1)*parseInt(opts.pageSize);
var end = start + parseInt(opts.pageSize);
data.rows = $.extend(true,[],topRows.slice(start, end).concat(childRows));
return data;
}
var appendMethod = $.fn.treegrid.methods.append;
var loadDataMethod = $.fn.treegrid.methods.loadData;
$.extend($.fn.treegrid.methods, {
clientPaging: function(jq){
return jq.each(function(){
var state = $(this).data('treegrid');
var opts = state.options;
opts.loadFilter = pagerFilter;
var onBeforeLoad = opts.onBeforeLoad;
opts.onBeforeLoad = function(row,param){
state.originalRows = null;
onBeforeLoad.call(this, row, param);
}
$(this).treegrid('loadData', state.data);
$(this).treegrid('reload');
});
},
loadData: function(jq, data){
jq.each(function(){
$(this).data('treegrid').originalRows = null;
});
return loadDataMethod.call($.fn.treegrid.methods, jq, data);
},
append: function(jq, param){
return jq.each(function(){
var state = $(this).data('treegrid');
if (state.options.loadFilter == pagerFilter){
$.map(param.data, function(row){
row._parentId = row._parentId || param.parent;
state.originalRows.push(row);
});
$(this).treegrid('loadData', state.originalRows);
} else {
appendMethod.call($.fn.treegrid.methods, jq, param);
}
})
}
});
})(jQuery);
function formatProgress(value){
if (value){
var s = '<div style="width:100%;border:1px solid #ccc">' +
'<div style="width:' + value + '%;background:#cc0000;color:#fff">' + value + '%' + '</div>'
'</div>';
return s;
} else {
return '';
}
}
$(function(){
$('#tg').treegrid().treegrid('clientPaging');
})
</script>
</body>
</html>