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ReportSheet 提供可以在报告数据更改或提交时绑定的数据输入事件。
使用这些数据输入事件,SpreadJS 使您能够验证所有数据更改或在数据输入期间取消操作。您还可以接收服务器的反馈结果,然后在 UI 中查看结果。
您可以使用 getChanges
方法获取报告表的更新并在数据输入模式下插入和删除记录更改。以下代码示例返回报告表的更新和删除更改。
const report = spread.addSheetTab(0, "Report", GC.Spread.Sheets.SheetType.reportSheet);
report.renderMode("Design");
const templateSheet = report.getTemplate();
templateSheet.setTemplateCell(0, 0, {
binding: "Orders[orderId]",
type: "Group",
});
templateSheet.setTemplateCell(0, 1, {
binding: "Orders[customerId]",
type: "Group",
});
templateSheet.setDataEntrySetting([{
name: "Write Back Rule 1",
tableName: "Orders",
fields: [
{ dbColumnName: "orderId", formula: "A1", isPrimary: true },
{ dbColumnName: "customerId", formula: "B1" },
],
includeUnmodified: false,
skipRecordWithEmptyValue: false
}]);
report.renderMode("Preview");
// 在 UI 中执行以下操作将触发事件。
report.updateCellValue(0, 1, "test");
report.addRecordAt(1, 0);
report.updateCellValue(2, 0, 111);
report.updateCellValue(2, 1, "test2");
report.deleteRecordAt(3, 0);
report.getChanges(); // 一个删除记录和两个使用 "Write Back Rule 1" dataEntrySetting 的更新记录。
type=warning
注意:
getChanges
方法仅收集数据输入 WriteBackRule 中的单元格值。信息将从报告表单元格中收集值。然而,如果 WriteBackRule 的字段值不是单元格,字段信息将为 undefined,实体将显示收集到的整个记录值
getChanges
方法返回 WriteBackRule 收集的所有记录。如果没有更改,它将返回包含空记录和已删除记录的 WriteBackRule
ReportSheet 支持以下数据输入事件:
ReportSheetDataChanging 和 ReportSheetDataChanged
ReportSheetDataChanging
:此事件在 ReportSheet 通过更新、插入或删除操作更改时发生。它允许验证或取消数据操作。
ReportSheetDataChanged
:此事件在 ReportSheet 数据通过更新、插入或删除操作更改后发生。它允许将数据更改提交到服务器。
以下示例使用了 ReportSheetDataChanging
和 ReportSheetDataChanged
事件。
const report = spread.addSheetTab(0, "Report", GC.Spread.Sheets.SheetType.reportSheet);
report.renderMode("Design");
const templateSheet = report.getTemplate();
templateSheet.setTemplateCell(0, 0, {
binding: "Orders[orderId]",
type: "Group",
showCollapseButton: true
});
templateSheet.setTemplateCell(0, 1, {
binding: "Orders[customerId]",
type: "Group",
});
templateSheet.setDataEntrySetting([{
name: "Write Back Rule 1",
tableName: "Orders",
fields: [
{ dbColumnName: "orderId", formula: "A1", isPrimary: true },
{ dbColumnName: "customerId", formula: "B1" },
],
includeUnmodified: false,
skipRecordWithEmptyValue: false
}]);
report.bind(GC.Spread.Sheets.Events.ReportSheetDataChanging, (event, args) => {
let { type, row, col, oldValue, newValue } = args;
if (allowChange(oldValue, newValue)) { // 用户在此验证此更改操作。
console.log(`Changing row: ${row}, col: ${col} from ${oldValue} to ${newValue}`);
} else {
args.cancel = true; // 用户在此取消此操作。
}
});
report.bind(GC.Spread.Sheets.Events.ReportSheetDataChanged, (event, args) => {
let changes = report.getChanges(); // 用户可以在此获取所有报告更改。
if (needSubmit(changes)) {
report.submit(); // 提交更改。
} else {
report.refresh(); // 恢复报告。
}
});
// UI 中的数据输入操作。
report.renderMode("Preview");
report.updateCellValue(0, 1, "test");
report.addRecordAt(1, 0);
report.updateCellValue(2, 0, 111);
report.updateCellValue(2, 1, "test2");
report.deleteRecordAt(3, 0);
type=warning
注意:
如果在编辑单元格值时
oldValue
与newValue
相同,则ReportSheetDataChanging
和ReportSheetDataChanged
事件不会触发在 UI 中执行的操作,如更新单元格(例如按删除键、粘贴、重置值)、添加记录或删除记录将触发
ReportSheetDataChanging
和ReportSheetDataChanged
事件
ReportSheetRecordsSubmitting 和 ReportSheetRecordsSubmitted
ReportSheetRecordsSubmitting
:此事件在 ReportSheet 提交更改到服务器之前发生。它允许对所有数据更改进行最终验证或取消操作。
ReportSheetRecordsSubmitted
:此事件在 ReportSheet 提交更改到服务器之后发生。它允许用户提供提交结果的 UI 反馈。
以下示例使用了 ReportSheetRecordsSubmitting
和 ReportSheetRecordsSubmitted
事件。
const report = spread.addSheetTab(0, "Report", GC.Spread.Sheets.SheetType.reportSheet);
report.renderMode("Design");
const templateSheet = report.getTemplate();
templateSheet.setTemplateCell(0, 0, {
binding: "Orders[orderId]",
type: "Group",
showCollapseButton: true
});
templateSheet.setTemplateCell(0, 1, {
binding: "Orders[customerId]",
type: "Group",
});
templateSheet.setDataEntrySetting([{
name: "Write Back Rule 1",
tableName: "Orders",
fields: [
{ dbColumnName: "orderId", formula: "A1", isPrimary: true },
{ dbColumnName: "customerId", formula: "B1" },
],
includeUnmodified: false,
skipRecordWithEmptyValue: false
}]);
// 对于某些希望在提交到服务器之前验证数据的用户,可以使用 `ReportSheetRecordsSubmitting` 事件。
reportsheet.bind(GC.Spread.Sheets.Events.ReportSheetRecordsSubmitting, (event, args) => {
let changes = args.sheet.getChanges(); // 获取报告表的所有更改。
for (let change of changes) {
let { records, deleteRecords, rule } = change;
let updateRecordsData = records.map((r) => r.entity), deleteRecordsData = deleteRecords.map((r) => r.entity);
let tableName = rule.tableName;
if (isInvalidData(updateRecordsData, tableName)) { // 用户验证数据。
// 取消报告表提交操作。
args.cancel = true;
break;
}
}
});
// 对于某些希望自定义提交结果回调的用户,可以使用 `ReportSheetRecordsSubmitted` 事件获取成功和失败的结果。
reportsheet.bind(GC.Spread.Sheets.Events.ReportSheetRecordsSubmitted, (event, args) => {
let { updateSuccessRecords, deleteSuccessRecords, updateFailedRecords, deleteFailedRecords } = args;
for (let record of updateFailedRecords) {
for (let fieldKey in record.info) {
if (record.info.hasOwnproperty(fieldKey)) {
let recordDetail = record.info[fieldKey];
if (recordDetail.state === "updated") {
// 用户控制台输出失败的详细信息。
console.log(`Updated failed in row: ${recordDetail.row} col: ${recordDetail.col}, oldValue: ${recordDetail.oldValue}, reason is ${record.reason}`);
}
}
}
}
});
// UI 中的数据输入操作。
report.renderMode("Preview");
report.updateCellValue(0, 1, "test");
report.addRecordAt(1, 0);
report.updateCellValue(2, 0, 111);
report.updateCellValue(2, 1, "test2");
report.deleteRecordAt(3, 0);
report.submit();
type=warning
注意:在提交报告时,
ReportSheetRecordsSubmitting
事件将始终触发。然而,如果更改记录和删除记录均为空白,则ReportSheetRecordsSubmitted
事件将不会触发。