在一个数据透视表中，用户可以对日期字段进行分组。例如：
用户可以在日期类型字段上设置日期分组，将日期按年、月、日等进行汇总。
日期分组
GC.Spread.Pivot.DateGroupType：该数据用于描述需要设置的时间间隔，如年、月、日等。
用户可以展开或折叠数据透视表中特定项，只显示其标题。该字段中的其他项不会受到影响。
window.onload = function () {
let spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), {sheetCount: 2});
initSpread(spread);
};
function initSpread(spread) {
spread.suspendPaint();
let sheet1 = spread.getSheet(0);
let sheet2 = spread.getSheet(1);
let tableName = getSource(sheet2, pivotSales);
let pivotTable = addPivotTable(sheet1, tableName);
bindEvent(pivotTable,spread);
spread.resumePaint();
}
function getSource(sheet, tableSource){
sheet.name("DataSource");
sheet.setRowCount(117);
sheet.setColumnWidth(0, 120);
sheet.getCell(-1, 0).formatter("YYYY-mm-DD");
sheet.getRange(-1,4,0,2).formatter("$ #,##0");
let table = sheet.tables.add('table', 0, 0, 117, 6);
for(let i=2;i<=117;i++)
{
sheet.setFormula(i-1,5,'=D'+i+'*E'+i)
}
table.style(GC.Spread.Sheets.Tables.TableThemes["none"]);
sheet.setArray(0, 0, tableSource);
return table.name();
}
function addPivotTable(sheet, source){
sheet.suspendPaint();
sheet.name("PivotTable");
sheet.setRowCount(10000);
sheet.setColumnCount(500);
let pivotTable = sheet.pivotTables.add("PivotTable", source, 1, 1, GC.Spread.Pivot.PivotTableLayoutType.outline, GC.Spread.Pivot.PivotTableThemes.medium3);
pivotTable.suspendLayout();
pivotTable.add("salesperson", "Salesperson", GC.Spread.Pivot.PivotTableFieldType.rowField);
pivotTable.add("car", "Cars", GC.Spread.Pivot.PivotTableFieldType.rowField);
let groupInfo = { originFieldName: "date", dateGroups: [
{ by: GC.Pivot.DateGroupType.quarters },
{ by: GC.Pivot.DateGroupType.years },
{ by: GC.Pivot.DateGroupType.months }
] };
pivotTable.group(groupInfo);
pivotTable.add("Years (date)", "Years (date)", GC.Spread.Pivot.PivotTableFieldType.columnField);
pivotTable.add("季度 (date)", "季度 (date)",GC.Spread.Pivot.PivotTableFieldType.columnField);
pivotTable.add("Months (date)", "Months (date)", GC.Spread.Pivot.PivotTableFieldType.columnField);
pivotTable.add("total", "Totals", GC.Spread.Pivot.PivotTableFieldType.valueField, GC.Pivot.SubtotalType.sum);
pivotTable.resumeLayout();
sheet.resumePaint();
pivotTable.autoFitColumn();
return pivotTable;
}
function bindEvent(pivotTable,spread){
document.getElementById("group-date").addEventListener("click",function(e){
spread.suspendPaint();
if(e.target.checked){
let groupInfo = { originFieldName: "date", dateGroups: [
{ by: GC.Pivot.DateGroupType.quarters },
{ by: GC.Pivot.DateGroupType.years },
{ by: GC.Pivot.DateGroupType.months }
] };
pivotTable.group(groupInfo);
pivotTable.add("Years (date)", "Years (date)", GC.Spread.Pivot.PivotTableFieldType.columnField);
pivotTable.add("季度 (date)", "季度 (date)",GC.Spread.Pivot.PivotTableFieldType.columnField);
pivotTable.add("Months (date)", "Months (date)", GC.Spread.Pivot.PivotTableFieldType.columnField);
} else {
pivotTable.ungroup("date");
}
spread.resumePaint();
});
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="spreadjs culture" content="zh-cn" />
<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-shapes/dist/gc.spread.sheets.shapes.min.js" type="text/javascript"></script>
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets-pivot-addon/dist/gc.spread.pivot.pivottables.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="$DEMOROOT$/spread/source/data/pivot-data.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 class="group">
<label><b>Group fields</b></label>
</div>
<hr />
<div class="group">
<input type="checkbox" id="group-date" class="group-date" checked>
<label for="group-date">Group <b>Date</b> field</label>
</div>
</div>
</div>
</body>
</html>
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: calc(100% - 280px);
height: 100%;
overflow: hidden;
float: left;
}
.options-container {
float: right;
width: 280px;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
.group{
width: 250px;
margin-bottom: 20px;
}
select{
width: 250px;
}
