SpreadsheetExtension.Open(String, DocumentFormat, Func<Stream>) Method
Opens a document specified by a stream.
Namespace: DevExpress.Web.Mvc
Assembly: DevExpress.Web.Mvc5.v24.1.dll
NuGet Package: DevExpress.Web.Mvc5
Declaration
public SpreadsheetExtension Open(
string uniqueDocumentID,
DocumentFormat format,
Func<Stream> contentAccessorByStream
)
Parameters
Name | Type | Description |
---|---|---|
uniqueDocumentID | String | A string value that uniquely identifies the document to open (the document’s DocumentId). |
format | DocumentFormat | A DocumentFormat object specifying the document format. |
contentAccessorByStream | Func<Stream> | A method delegate to obtain a stream from which to open the document. |
Returns
Type | Description |
---|---|
SpreadsheetExtension | A SpreadsheetExtension object representing the Spreadsheet extension. |
Remarks
This method tries to find the specified document in a list of already opened documents maintained by the DocumentManager. If the document is found, its instance is opened in Spreadsheet. If the specified document has not been found in the opened documents, a delegate method specified by the contentAccessorByStream parameter is called. It allows you to manually obtain a steam from which to open a document (for instance, to load a document from a database).