用户可以通过添加数据或使用复制粘贴，拖动填充和拖放操作来自动扩展表格区域。 根据具体的用户操作，SpreadJS将会在表格的右侧插入一列，或在最后一行的下方添加一行。
1.将数据直接添加到表的右侧或表的最后一行之后。
2.粘贴的数据超出当前表格区域。
3.从表格区域中拖动填充。
4.将一块区域拖放到表格区域。
你也可以通过allowAutoExpand来控制表格是否可以自动扩展。
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"));
initSpread(spread);
};
function initSpread(spread) {
spread.suspendPaint();
var spreadNS = GC.Spread.Sheets;
var sheet = spread.getSheet(0);
sheet.tables.add("table1", 1, 1, 4, 4, spreadNS.Tables.TableThemes.light1);
_getElementById("allowAutoExpand").addEventListener('change', function() {
var table = sheet.tables.all()[0];
if (table) {
table.allowAutoExpand(_getElementById("allowAutoExpand").checked);
}
});
sheet.setColumnWidth(1, 120);
sheet.setColumnWidth(2, 120);
sheet.setColumnWidth(3, 120);
sheet.setColumnWidth(4, 120);
sheet.getCell(1, 1).text("First Name");
sheet.getCell(1, 2).text("Last Name");
sheet.getCell(1, 3).text("Score");
sheet.getCell(1, 4).text("Position");
sheet.getCell(2, 1).text("Alexa");
sheet.getCell(2, 2).text("Wilder");
sheet.getCell(2, 3).text("90");
sheet.getCell(2, 4).text("Web Developer");
sheet.getCell(3, 1).text("Victor");
sheet.getCell(3, 2).text("Wooten");
sheet.getCell(3, 3).text("70");
sheet.getCell(3, 4).text(".NET Developer");
sheet.getCell(4, 1).text("Ifeoma");
sheet.getCell(4, 2).text("Mays");
sheet.getCell(4, 3).text("85");
sheet.getCell(4, 4).text("Sales Manager");
spread.resumePaint();
}
function _getElementById(id){
return document.getElementById(id);
}
<!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">
<p>Select the table in the Spread instance and change the state of allow table auto expand.</p>
<div class="option-group">
<input type="checkbox" id="allowAutoExpand" checked />
<label for="allowAutoExpand">Allow Table Auto Expand</label>
</div>
</div>
</div>
</body>
</html>
.sample {
position: relative;
height: 100%;
overflow: auto;
}
.sample::after {
display: block;
content: "";
clear: both;
}
.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;
}
.option-group {
margin-bottom: 6px;
}
label {
display: inline-block;
min-width: 90px;
margin-bottom: 6px;
}
select {
padding: 4px 6px;
}
p {
padding: 0 0 12px;
margin: 0;
}
.options-toggle {
display: none;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
