RichEditDocumentServerExtensions.LoadDocumentTemplateAsync(RichEditDocumentServer, Byte[], CancellationToken) Method

Asynchronously loads a document template from a byte array.

Assembly : DevExpress.Docs.v25.2.dll

NuGet Package : DevExpress.Document.Processor

Declaration

C#
VB.NET

csharp

public static Task<bool> LoadDocumentTemplateAsync(
    this RichEditDocumentServer self,
    byte[] buffer,
    CancellationToken cancellationToken
)

<ExtensionAttribute>
Public Shared Function LoadDocumentTemplateAsync(
    self As RichEditDocumentServer,
    buffer As Byte(),
    cancellationToken As CancellationToken
) As Task(Of Boolean)

Parameters

Name	Type	Description
self	RichEditDocumentServer

The current RichEditDocumentServer instance.

| | buffer | Byte[] |

A byte array that contains document data.

| | cancellationToken | CancellationToken |

A cancellation token that indicates whether to cancel the operation.

Returns

Type	Description
Task<Boolean>

Returns true if the document was loaded successfully; otherwise, false is returned.

Remarks

Important

The RichEditDocumentServerExtensions class is defined in the DevExpress.Docs.v25.2.dll assembly and DevExpress.Document.Processor NuGet package. Add this assembly or package 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.

A document template cannot be overwritten either in code or in the UI. 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 RichEditDocumentServer uses the built-in IFormatDetectorService service implementation to detect the loaded document’s format. If format detection fails, the RichEditDocumentServer.InvalidFormatException event fires.

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).