jqwidgets-framework
Version:
jQWidgets is an advanced Angular, Vue, Blazor, React, Web Components, jquery, ASP .NET MVC, Custom Elements and HTML5 UI framework.
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HTML
<html lang="en">
<head>
<title id='Description'>This example illustrates how to create and apply a custom filter to jqxGrid.
</title>
<meta name="description" content="jQuery Grid data filtering" />
<link rel="stylesheet" href="../../../jqwidgets/styles/jqx.base.css" type="text/css" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1 maximum-scale=1 minimum-scale=1" />
<script type="text/javascript" src="../../../scripts/jquery-1.12.4.min.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxcore.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxdata.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxbuttons.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxscrollbar.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxlistbox.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxdropdownlist.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxmenu.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxgrid.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxgrid.filter.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxgrid.sort.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxgrid.selection.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxpanel.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxcheckbox.js"></script>
<script type="text/javascript" src="../../../scripts/demos.js"></script>
<script type="text/javascript" src="generatedata.js"></script>
<script type="text/javascript">
$(document).ready(function () {
var data = generatedata(200);
var source =
{
localdata: data,
datafields:
[
{ name: 'firstname', type: 'string' },
{ name: 'lastname', type: 'string' },
{ name: 'productname', type: 'string' },
{ name: 'date', type: 'date' },
{ name: 'quantity', type: 'number' },
{ name: 'price', type: 'number' }
],
datatype: "array"
};
var dataAdapter = new $.jqx.dataAdapter(source);
// create grid.
$("#grid").jqxGrid(
{
width: 600,
source: dataAdapter,
filterable: false,
sortable: true,
autoshowfiltericon: false,
columns: [
{ text: 'First Name', datafield: 'firstname', width: 100 },
{ text: 'Last Name', datafield: 'lastname', width: 100 },
{ text: 'Product', datafield: 'productname', width: 180 },
{ text: 'Order Date', datafield: 'date', width: 100, cellsformat: 'd' },
{ text: 'Quantity', datafield: 'quantity', width: 80, cellsalign: 'right' },
{ text: 'Unit Price', datafield: 'price', width: 100, cellsalign: 'right', cellsformat: 'c2' }
]
});
// create buttons, listbox and the columns chooser dropdownlist.
$("#applyfilter").jqxButton({ theme: theme });
$("#clearfilter").jqxButton({ theme: theme });
$("#filterbox").jqxListBox({ checkboxes: true, width: 200, height: 250 });
$("#columnchooser").jqxDropDownList({ autoDropDownHeight: true, selectedIndex: 0, width: 200, height: 25,
source: [{ label: 'First Name', value: 'firstname' },
{ label: 'Last Name', value: 'lastname' },
{ label: 'Product', value: 'productname' },
{ label: 'Order Date', value: 'date' },
{ label: 'Quantity', value: 'quantity' },
{ label: 'Unit Price', value: 'price' }
]
});
// updates the listbox with unique records depending on the selected column.
var updateFilterBox = function (datafield) {
var filterBoxAdapter = new $.jqx.dataAdapter(source,
{
uniqueDataFields: [datafield],
autoBind: true
});
var uniqueRecords = filterBoxAdapter.records;
uniqueRecords.splice(0, 0, '(Select All)');
$("#filterbox").jqxListBox({ source: uniqueRecords, displayMember: datafield });
$("#filterbox").jqxListBox('checkAll');
}
updateFilterBox('firstname');
// handle select all item.
var handleCheckChange = true;
$("#filterbox").on('checkChange', function (event) {
if (!handleCheckChange)
return;
if (event.args.label != '(Select All)') {
handleCheckChange = false;
$("#filterbox").jqxListBox('checkIndex', 0);
var checkedItems = $("#filterbox").jqxListBox('getCheckedItems');
var items = $("#filterbox").jqxListBox('getItems');
if (checkedItems.length == 1) {
$("#filterbox").jqxListBox('uncheckIndex', 0);
}
else if (items.length != checkedItems.length) {
$("#filterbox").jqxListBox('indeterminateIndex', 0);
}
handleCheckChange = true;
}
else {
handleCheckChange = false;
if (event.args.checked) {
$("#filterbox").jqxListBox('checkAll');
}
else {
$("#filterbox").jqxListBox('uncheckAll');
}
handleCheckChange = true;
}
});
// handle columns selection.
$("#columnchooser").on('select', function (event) {
updateFilterBox(event.args.item.value);
});
// builds and applies the filter.
var applyFilter = function (datafield) {
$("#grid").jqxGrid('clearfilters');
var filtertype = 'stringfilter';
if (datafield == 'date') filtertype = 'datefilter';
if (datafield == 'price' || datafield == 'quantity') filtertype = 'numericfilter';
var filtergroup = new $.jqx.filter();
var checkedItems = $("#filterbox").jqxListBox('getCheckedItems');
if (checkedItems.length == 0) {
var filter_or_operator = 1;
var filtervalue = "Empty";
var filtercondition = 'equal';
var filter = filtergroup.createfilter(filtertype, filtervalue, filtercondition);
filtergroup.addfilter(filter_or_operator, filter);
}
else {
for (var i = 0; i < checkedItems.length; i++) {
var filter_or_operator = 1;
var filtervalue = checkedItems[i].label;
var filtercondition = 'equal';
var filter = filtergroup.createfilter(filtertype, filtervalue, filtercondition);
filtergroup.addfilter(filter_or_operator, filter);
}
}
// add the filters.
$("#grid").jqxGrid('addfilter', datafield, filtergroup);
// apply the filters.
$("#grid").jqxGrid('applyfilters');
}
// clears the filter.
$("#clearfilter").click(function () {
$("#grid").jqxGrid('clearfilters');
});
// applies the filter.
$("#applyfilter").click(function () {
var dataField = $("#columnchooser").jqxDropDownList('getSelectedItem').value;
applyFilter(dataField);
});
});
</script>
</head>
<body class='default'>
<div id="grid">
</div>
<div style="margin-top: 20px;">
<div>Choose Column:</div>
<div id="columnchooser"></div>
<div style="margin-top: 10px;" id="filterbox"></div>
<div style="margin-top: 10px;">
<input type="button" id="applyfilter" value="Apply Filter" />
<input type="button" id="clearfilter" value="Clear Filter" />
</div>
</div>
<div style="position: absolute; bottom: 5px; right: 5px;">
<a href="https://www.jqwidgets.com/" alt="https://www.jqwidgets.com/"><img alt="https://www.jqwidgets.com/" title="https://www.jqwidgets.com/" src="https://www.jqwidgets.com/wp-content/design/i/logo-jqwidgets.png"/></a>
</div>
</body>
</html>