本文整理汇总了TypeScript中data-source.DataSource类的典型用法代码示例。如果您正苦于以下问题：TypeScript DataSource类的具体用法？TypeScript DataSource怎么用？TypeScript DataSource使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了DataSource类的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: constructor
constructor(report: any) {
super();
this._report = report;
var options = new DataSourceOptions();
options.typeName = ExpenseTypeName;
options.expand = {
Category: {
TargetTypeName: "ExpenseCategory",
ReturnAs: "ExpenseCategory"
}
};
this._expenses = new DataSource(everlive, options);
this._expenses.addFilterDescriptor(new FilterDescriptor("Report", Operators.equals, this._report.Id));
this._expenses.on("loaded", (args: EventData) => {
this.totalCost = this._expenses.sum("Cost");
var expensesByCategory = [];
this._expenses.groupBy("ExpenseCategory", (category) => {
return category.Id
}).forEach((group, index, groupDescriptors) => {
var cost = sum(group.items, "Cost");
expensesByCategory.push({
Category: group.header,
Percent: getPercent(this._totalCost, cost)
});
});
this.expensesByCategory = expensesByCategory;
});
}示例2: sum
this._expenses.on("loaded", (args: EventData) => {
this.totalCost = this._expenses.sum("Cost");
var expensesByCategory = [];
this._expenses.groupBy("ExpenseCategory", (category) => {
return category.Id
}).forEach((group, index, groupDescriptors) => {
var cost = sum(group.items, "Cost");
expensesByCategory.push({
Category: group.header,
Percent: getPercent(this._totalCost, cost)
});
});
this.expensesByCategory = expensesByCategory;
});示例3: refresh
public refresh() {
this.execute(this._categories.reload());
if (this.item.Picture) {
this.execute(service.getUrlFromFileId(this.item.Picture))
.then((url) => {
this.picture = url;
this._isUrl = true;
});
}
}示例4: refresh
refresh() {
this.execute(this._reports.reload());
}