只需下面几个步骤，切片器和切片器数据就可以一起工作：
(1) 根据自己的数据创建一个GeneralSlicerData。
(2) 创建一个自定义的切片器并附加到GeneralSlicerData。
(3) 从GeneralSlicerData获取列数据然后构建切片器的UI。
(4) 响应UI事件并调用GeneralSlicerData的doFilter方法。
(5) 从GeneralSlicerData获取筛选结果并更新切片器的UI。
下面的API可以简化你的代码：
getData: 从指定列获取所有数据。
getExclusiveData: 从指定列获取排除的数据（无重复数据）。
doFilter: 对指定的列和排除的数据索引进行筛选。
doUnfilter: 取消指定列的筛选。
attachListener: 附加切片器到切片器数据。
detachListener: 从切片器数据摘除切片器。
onFiltered: 在切片器数据被筛选后触发调用。
window.onload = function () {
// Define data source.
var columnNames = ["Name", "Sex", "City", "Birthday"],
data = [
["Bob", "Man", "NewYork", "1968/06/08"],
["Betty", "Woman", "Washington", "1972/07/03"],
["Alice", "Woman", "Atlanta", "1964/03/02"],
["Tom", "Man", "Houston", "1986/12/03"],
["Jenny", "Woman", "Washington", "1956/10/13"],
["Nacy", "Woman", "NewYork", "1989/01/14"],
["John", "Man", "Houston", "1995/01/01"],
["Mark", "Man", "Atlanta", "1965/11/11"],
["Susan", "Woman", "Atlanta", "1983/07/08"]];
// Build data UI.
initFilteredResultList(columnNames, data);
// Create GeneralSlicerData.
var slicerData = new GC.Spread.Slicers.GeneralSlicerData(data, columnNames);
// Create a custom slicer and attach it to dom tree.
var slicer1 = new CustomSlicer(document.getElementById('cityContainer'));
slicer1.setData(slicerData, 'City');
var slicer2 = new CustomSlicer(document.getElementById('sexContainer'));
slicer2.setData(slicerData, 'Sex');
};
// Define custom slicer.
function CustomSlicer(container) {
this.container = container;
this.slicerData = null;
this.columnName = null;
}
CustomSlicer.prototype.setData = function (slicerData, columnName) {
this.slicerData = slicerData;
this.columnName = columnName;
// Invoke attachListener method.
this.slicerData.attachListener(this);
this.onDataLoaded();
}
CustomSlicer.prototype.onDataLoaded = function () {
var columnName = this.columnName,
exclusiveData = this.slicerData.getExclusiveData(columnName);
var domString = '<span>' + this.columnName + ':</span>' + '<br />';
exclusiveData.forEach(function (exclusiveDataItem, index) {
var id = columnName + index + 1;
domString += '<input type="checkbox" class="' + columnName + '" value="' + exclusiveDataItem + '" id="' + id + '" style="margin-left:10px;" checked>'
+ '<label for="' + id + '">' + exclusiveDataItem + '</label>'
+ '<br />';
});
this.container.innerHTML = domString;
var self = this;
var elements = document.getElementsByClassName(columnName);
for (var _index = 0; _index < elements.length; _index++) {
var element = elements[_index]
element.onchange = function (e) {
var parent = e.target.parentNode,
items = parent.childNodes,
indexes = [];
for (var i = 0, length = items.length; i < length; i++) {
if (items[i].checked) {
var value = items[i].value;
if (!isNaN(parseInt(value))) {
value = parseInt(value);
}
indexes.push(exclusiveData.indexOf(value))
}
}
if (indexes.length === 0) {
// Invoke doUnfilter method when all item are not selected.
self.slicerData.doUnfilter(self.columnName);
}
else {
// Invoke doFilter method when any item is selected.
self.slicerData.doFilter(self.columnName, {exclusiveRowIndexes: indexes});
}
}
}
};
// OverWrite onFiltered method to filter your data.
CustomSlicer.prototype.onFiltered = function () {
var slicerdata = this.slicerData;
var filteredRowIndexs = slicerdata.getFilteredRowIndexes();
var trs = document.getElementsByTagName('tr');
for (var i = 0; i < slicerdata.data.length; i++) {
if (filteredRowIndexs.indexOf(i) !== -1) {
trs[i + 1].style.display = '';
} else {
trs[i + 1].style.display = 'none';
}
}
}
function initFilteredResultList(columnNames, data) {
var tableStr = '';
for (var i = 0; i < columnNames.length; i++) {
tableStr += "<th>" + columnNames[i] + "</th>";
}
for (var i = 0; i < data.length; i++) {
tableStr += "<tr>";
for (var j = 0; j < data[i].length; j++) {
tableStr += "<td>" + data[i][j] + "</td>";
}
tableStr += "</tr>";
}
var table = document.createElement('table');
table.border = '1';
table.cellPadding = '0';
table.cellSpacing = '0';
table.innerHTML = tableStr;
document.getElementById('ss').appendChild(table);
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta name="spreadjs culture" content="zh-cn" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css"
href="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/dist/gc.spread.sheets.all.min.js"
type="text/javascript"></script>
<script
src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets-resources-zh/dist/gc.spread.sheets.resources.zh.min.js"
type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script>
<script src="app.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div class="sample-tutorial">
<div id="ss" class="sample-spreadsheets"></div>
<div class="options-container">
<div id="info">Use GeneralSlicerData on the left table to filter data by City and Sex columns.</div>
<p>
<div id="info">Filter data by the third column using the slicer below:</div>
</p>
<div id="cityContainer"></div>
<p>
<div id="info">Filter data by the second column using the slicer below:</div>
</p>
<div id="sexContainer"></div>
</div>
</div>
</body>
</html>
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: calc(100% - 280px);
height: 100%;
overflow: auto;
float: left;
}
.options-container {
float: right;
width: 280px;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
label {
display: inline-block;
min-width: 90px;
margin: 6px 0;
}
hr {
border-color: #fff;
opacity: .2;
margin: 12px 0;
}
table th,
table td {
padding: 4px 8px;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
