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ExcelDataSource.FillAsync() Method

Populates the ExcelDataSource in an asynchronous manner.

Namespace: DevExpress.DataAccess.Excel

Assembly: DevExpress.DataAccess.v22.2.dll

NuGet Package: DevExpress.DataAccess


public Task FillAsync()


Type Description

A task that populates the data source.


Use this method to populate an Excel data source in an individual task asynchronously. Unlike the Fill() method call, FillAsync does not lock other actions performed concurrently. For instance, the user interface remains operational while the data source is populated.

Call the FillAsync method with the await operator.


The code sample below creates an ExcelDataSource and populates it in an asynchronous manner.

using DevExpress.DataAccess.Excel;
using DevExpress.XtraReports.UI;
using System.Threading;
XtraReport report = new XtraReport();
// Creates and configures the Excel data source.
ExcelDataSource excelDataSource = new ExcelDataSource();
excelDataSource.Name = "Excel Data Source";
excelDataSource.FileName = "Sales.xlsx";
ExcelWorksheetSettings worksheetSettings = new ExcelWorksheetSettings("SalesPerson", "A1:L2000");
excelDataSource.SourceOptions = new ExcelSourceOptions(worksheetSettings);
// Populates the data source.
await excelDataSource.FillAsync();
report.DataSource = excelDataSource;

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the FillAsync() method.


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See Also