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下面的部分描述了在表格中存储变更以及通过刷新表格删除所有变更的步骤。
function refresh() {
var ss = GC.Spread.Sheets.findControl(document.getElementById("ss"));
// 1. 获取活动表单
var sheet = ss.getActiveSheet();
// Reset the sheet and set the column count
sheet.reset();
sheet.setColumnCount(7);
// 使用样本数据加载spread实例的表
var data = createSampleData();
loadTable(ss, data);
// 暂停脏单元格
sheet.suspendDirty();
// 设置F1单元格的值、背景颜色和halign
sheet
.getCell(0, 5)
.backColor("yellow")
.value("Changes")
.hAlign(GC.Spread.Sheets.HorizontalAlign.center);
// 恢复脏单元格
sheet.resumeDirty();
// 保护表单并锁定F列
sheet.options.isProtected = true;
// 4.1) 将表单默认样式设置为不锁定单元格
var s = sheet.getDefaultStyle();
s.locked = false;
sheet.setDefaultStyle(s);
// 4.1) 指定锁定列F以显示新值和旧值(列索引5)
sheet.getRange(-1, 5, -1, 1).locked(true);
<!--Create a refresh button-->
<input type="button" value="Refresh" onclick="refresh()" />
// Step 2: 创建 showChanges()
function showChanges(ss, row, col, rowCount, colCount) {
// 获取活动表单
var sheet = ss.getActiveSheet();
// 如果activesheet有挂起的变更
if (sheet.hasPendingChanges()) {
// 暂停绘制,事件,脏
ss.suspendPaint();
ss.suspendEvent();
sheet.suspendDirty();
// 将脏单元集合存储在名为dirtyDataArray的数据数组中
var dirtyDataArray = sheet.getDirtyCells(row, col, rowCount, colCount);
// 跳过“F”列的脏变更
for (var i = 0; i < dirtyDataArray.length; i++) {
// 将脏单元格数据存储在脏数据数组中
var dirtyCell = dirtyDataArray[i];
// 显示dirtyDataArray值中的旧值和新值
// row index --> dirtyCell.row 返回进行变更的行的行索引
// column index -->5是F列的行索引
sheet.setValue(
dirtyCell.row,
5,
"old: " + dirtyCell.oldValue + ", new: " + dirtyCell.newValue
);
}
// 恢复绘制,事件,脏
sheet.resumeDirty();
ss.resumeEvent();
ss.resumePaint();
}
}
将 CellChanged 和 RangeChanged 事件绑定到活动的表单,以在每次表格被修改时执行 showChange 函数。
// 步骤 3: 将CellChanged和RangeChanged事件绑定到表单
$(document).ready(function () {
//初始化spread
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"));
// 调用refresh函数
refresh();
// 绑定 CellChanged
spread.bind(GC.Spread.Sheets.Events.CellChanged, function (event, data) {
var row = data.row,
col = data.col;
if (
data.propertyName !== "value" ||
row === undefined ||
col === undefined
) {
return;
}
// 执行showChanged函数
showChanges(spread, row, col);
});
// 绑定 RangeChanged
spread.bind(GC.Spread.Sheets.Events.RangeChanged, function (event, data) {
var row = data.row,
col = data.col,
rowCount = data.rowCount,
colCount = data.colCount;
if (
row === undefined ||
col === undefined ||
rowCount === undefined ||
colCount === undefined
) {
return;
}
// 执行showChanged函数
showChanges(spread, row, col, rowCount, colCount);
});
});
F列中会出现旧值和新值,并且F列被锁定,不能修改其内容。您还可以使用refresh按钮刷新spread实例,以删除所有变更。以上代码的输出如下所示: