officefileapi-devexpress-dot-spreadsheet-dot-workbook-dot-exporttohtmlasync-x28-system-dot-io-dot-stream-devexpress-dot-spreadsheet-dot-worksheet-x29.md
Asynchronously exports the specified worksheet to the specified stream in HTML format.
You need a license for the DevExpress Office File API Subscription or DevExpress Universal Subscription to use this method in production code.
Namespace : DevExpress.Spreadsheet
Assembly : DevExpress.Docs.v25.2.dll
NuGet Package : DevExpress.Document.Processor
public Task ExportToHtmlAsync(
Stream stream,
Worksheet sheet
)
Public Function ExportToHtmlAsync(
stream As Stream,
sheet As Worksheet
) As Task
| Name | Type | Description |
|---|---|---|
| stream | Stream |
A Stream object to which the created HTML file should be sent.
| | sheet | Worksheet |
A Worksheet object to be exported to HTML.
|
| Type | Description |
|---|---|
| Task |
An Task object representing an asynchronous export operation.
|
Important
Take into account the following when you call this method:
The events fired by this method call may occur in a different thread than the target operation.
The operation is not thread safe (the document should not be accessed simultaneously by different threads). Wait until the operation is completed before you continue to work with the document (for example, use the await operator).
The default calculation mode for a Workbook is Manual. This mode implies that the Spreadsheet does not recalculate formulas before it generates an HTML file. Call the Workbook.Calculate or Workbook.CalculateFull method to calculate all formulas in the workbook before you export it to HTML.
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ExportToHtmlAsync(Stream, Worksheet) method.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
using var ms = new MemoryStream();
await workbook.ExportToHtmlAsync(ms, workbook.Worksheets[0]);
return ms.ToArray();
See Also