RichEditDocumentServerExtensions.LoadDocumentTemplateAsync(RichEditDocumentServer, Stream, DocumentFormat, CancellationToken) Method

Asynchronously loads a document template from the stream in the specified document format.

Namespace: DevExpress.XtraRichEdit

Assembly: DevExpress.Docs.v20.2.dll

NuGet Package: DevExpress.Document.Processor

NuGet Packages: DevExpress.Document.Processor, DevExpress.WindowsDesktop.Document.Processor

Declaration

C#

public static Task<bool> LoadDocumentTemplateAsync(
    this RichEditDocumentServer self,
    Stream stream,
    DocumentFormat documentFormat,
    CancellationToken cancellationToken
)

VB.NET

<ExtensionAttribute>
Public Shared Function LoadDocumentTemplateAsync(
    self As RichEditDocumentServer,
    stream As Stream,
    documentFormat As DocumentFormat,
    cancellationToken As CancellationToken
) As Task(Of Boolean)

Parameters

Name	Type	Description
self	RichEditDocumentServer	The current RichEditDocumentServer instance.
stream	Stream	A stream used to load a document.
documentFormat	DocumentFormat	The DevExpress.XtraRichEdit.DocumentFormat enumeration value that indicates the document format.
cancellationToken	CancellationToken	A CancellationToken object used to trace requests to cancel an operation.

Returns

Type	Description
Task<Boolean>	A Task<TResult> object that returns true if the document is successfully loaded; otherwise, false.

Remarks

Important

The RichEditDocumentServerExtensions class is defined in the DevExpress.Docs.v20.2.dll assembly. Add this assembly to your project to use the RichEditDocumentServerExtensions members. You need a license for the DevExpress Office File API Subscription or DevExpress Universal Subscription to use this library in production code.

The source stream can be non-seekable. In this instance, the stream is buffered automatically. After the document is loaded, the stream remains open.

The document template cannot be automatically overwritten. The information about the original file location and its format is dropped. An attempt to save (i.e., overwrite) the original document invokes the Save As dialog.

The format of the document loaded from a stream is detected automatically by the built-in DevExpress.XtraRichEdit.Services.IFormatDetectorService service implementation. If the format detection fails or the passed stream is null, the RichEditDocumentServer.InvalidFormatException event fires.

Important

Take into account the following when you call this method:

• The events fired by this method’s call may occur in a different thread than the target operation.

• The operation is not thread safe (documents should not be accessed simultaneously by different threads). Wait until the operation is completed before working with the document, i.e., use the await operator.