这使得在将Spread实例序列化为JSON时，很容易包含它绑定到的实际数据源。如果您想在另一个Spread实例中加载那个JSON，您就不必担心再次将Spread绑定到数据源，因为它已经包含在其中了。
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), { sheetCount: 2 });
var spread2 = new GC.Spread.Sheets.Workbook(document.getElementById("ss1"), { sheetCount: 1 });
initSpread(spread);
};
function initSpread(spread) {
spread.suspendPaint();
spread.options.tabStripRatio = 0.6;
//Sheet data source
var sd = dataSource;
var sheet1 = spread.getSheet(0);
sheet1.name("Sheet data source");
if (sd.length > 0) {
sheet1.setDataSource(sd);
}
sheet1.setColumnWidth(0, 150);
sheet1.setColumnWidth(1, 150);
sheet1.setColumnWidth(2, 80);
sheet1.setColumnWidth(3, 150);
sheet1.setColumnWidth(4, 80);
spread.resumePaint();
//Table data source
sd = [
{ name: "Yang", age: 24 },
{ name: "Wang", age: 35 },
{ name: "Zhang", age: 20 }
];
var sheet2 = spread.getSheet(1);
sheet2.name("Table data source");
sheet2.setDataSource(new GC.Spread.Sheets.Bindings.CellBindingSource({
name: "Yang",
age: 24,
country: "China",
city: "Xi'an",
ds: sd
}));
sheet2.setBindingPath(0, 1, "name");
sheet2.setBindingPath(1, 1, "age");
sheet2.setBindingPath(2, 1, "country");
sheet2.setBindingPath(3, 1, "city");
var table = sheet2.tables.add("table1", 4, 1, 1, 1);
table.bindingPath("ds");
sheet2.tables.addFromDataSource("table2", 9, 1, sd);
sheet2.options.allowCellOverflow = true;
sheet2.setValue(4, 4, "Table binding to data source");
sheet2.setValue(9, 4, "Table created from data source");
document.getElementById("fromtoJsonBtn").addEventListener('click',function() {
//ToJson
var spread1 = GC.Spread.Sheets.findControl(document.getElementById('ss'));;
var jsonStr = JSON.stringify(spread1.toJSON({
includeBindingSource: document.getElementById("includeBindingSource").checked
}));
//FromJson
var spread2 = GC.Spread.Sheets.findControl(document.getElementById('ss1'));;
spread2.fromJSON(JSON.parse(jsonStr));
});
}
<!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="$DEMOROOT$/spread/source/data/data.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 class="sample-spreadsheets" style="overflow: auto;">
<label style="font:bold 10pt arial">Source:</label>
<div id="ss" style="height: 260px"></div>
<br />
<label style="font:bold 10pt arial">Target:</label>
<div id="ss1" style="height: 260px"></div>
</div>
<div class="options-container">
<div class="option-row">
<label>Click button to serialize the JSON from the source workbook to the target workbook, with and
without the binding source data.</label>
</div>
<div class="option-row">
<input type="checkbox" id="includeBindingSource" checked="checked" />
<label for="includeBindingSource">includeBindingSource</label>
<input type="button" value="Json Serialize" id="fromtoJsonBtn"
title="Serialize source spread to JSON and restore from JSON to target spread." />
</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;
}
.option-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
label {
display: block;
margin-bottom: 6px;
}
input {
padding: 4px 6px;
}
input[type=button] {
margin-top: 6px;
display: block;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
