日期分组透视表

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(700);
sheet.setColumnWidth(5, 120);
sheet.getCell(-1, 5).formatter("YYYY-mm-DD");
sheet.getRange(-1,4,0,1).formatter("$ #,##0");
let table = sheet.tables.add('table', 0, 0, 642, 6);
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("region", "Region", GC.Spread.Pivot.PivotTableFieldType.columnField);
pivotTable.add("city", "City", GC.Spread.Pivot.PivotTableFieldType.columnField);
let groupInfo = { originFieldName: "date", dateGroups: [
{ by: GC.Pivot.DateGroupType.years },
] };
pivotTable.group(groupInfo);
pivotTable.add("Years (date)", "Years (date)", GC.Spread.Pivot.PivotTableFieldType.rowField);
pivotTable.add("amount", "Amount", GC.Spread.Pivot.PivotTableFieldType.valueField, GC.Pivot.SubtotalType.sum);
pivotTable.resumeLayout();
sheet.resumePaint();
pivotTable.autoFitColumn();
return pivotTable;
}
function bindEvent(pivotTable, spread){
const radios = document.querySelectorAll('input[name="dateGroup"]');
const groupIntervalEle = document.querySelector('input[id="numInput"]');
radios.forEach(radio => {
radio.addEventListener('change', (e) => {
spread.suspendPaint();
const value = e.target.value;
let groupInfo = { originFieldName: "date", dateGroups: [] }, fieldName;
groupIntervalEle.style.display = "none";
switch (value) {
case "0":
groupInfo.dateGroups.push({ by: GC.Pivot.DateGroupType.years });
fieldName = "Years (date)";
break;
case "1":
groupInfo.dateGroups.push({ by: GC.Pivot.DateGroupType.quarters });
fieldName = "Quarters (date)";
break;
case "2":
groupInfo.dateGroups.push({ by: GC.Pivot.DateGroupType.months });
fieldName = "Months (date)";
break;
case "3":
groupIntervalEle.style.display = "inline-block";
groupInfo.dateGroups.push({ by: GC.Pivot.DateGroupType.days,  groupInterval: +groupIntervalEle.value || 1});
fieldName = "Days (date)";
break;
default:
groupInfo.dateGroups.push({ by: GC.Pivot.DateGroupType.years });
fieldName = "Years (date)";
break;
}
pivotTable.suspendLayout();
pivotTable.group(groupInfo);
console.log(groupInfo)
pivotTable.add(fieldName, fieldName, GC.Spread.Pivot.PivotTableFieldType.rowField);
pivotTable.resumeLayout();
spread.resumePaint();
pivotTable.autoFitColumn();
});
});
groupIntervalEle.addEventListener('change', (e) => {
const groupDaysEle = document.querySelector('input[id="toggle-date-group-days"]');
if (groupDaysEle.checked) {
spread.suspendPaint();
let groupInfo = { originFieldName: "date", dateGroups: [
{ by: GC.Pivot.DateGroupType.days,  groupInterval: +groupIntervalEle.value || 1}
] };
pivotTable.suspendLayout();
pivotTable.group(groupInfo);
console.log(groupInfo)
pivotTable.add("Days (date)", "Days (date)", GC.Spread.Pivot.PivotTableFieldType.rowField);
pivotTable.resumeLayout();
spread.resumePaint();
pivotTable.autoFitColumn();
}
})
}

<!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/pivotSales.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>分组字段</b></label>
</div>
<hr />
<div class="group">
<div class="date-group-items">
<input type="radio" name="dateGroup" id="toggle-date-group-years" checked="checked"
value="0" /><label for="toggle-date-group-years">按年分组</label>
</div>
<div class="date-group-items">
<input type="radio" name="dateGroup" id="toggle-date-group-quarters" value="1" /><label
for="toggle-date-group-quarters">按季度分组</label>
</div>
<div class="date-group-items">
<input type="radio" name="dateGroup" id="toggle-date-group-months" value="2" /><label
for="toggle-date-group-months">按月分组</label>
</div>
<div class="date-group-items">
<input type="radio" name="dateGroup" id="toggle-date-group-days" value="3" /><label
for="toggle-date-group-days">按天分组</label>
<input type="number" id="numInput" class="date-group-interval" min="1" value="1" />
</div>
</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;
}
.date-group-items {
margin: 5px;
}
input {
margin-right: 10px;
}
.date-group-interval {
display: none;
outline: none;
width: 50px;
margin-left: 30px;
border: 1px solid #abadb3;
}

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