RestoreReportDocumentFromCacheEventArgs.RestoreDocumentFromFile(String) Method

Loads a report document from the specified file.

Namespace: DevExpress.XtraReports.Web

Assembly: DevExpress.XtraReports.v19.1.Web.WebForms.dll

NuGet Package: DevExpress.Web.Reporting

Declaration

C#

public void RestoreDocumentFromFile(
    string fileName
)

VB.NET

Public Sub RestoreDocumentFromFile(
    fileName As String
)

Parameters

Name	Type	Description
fileName	String	A String value specifying the PRNX file, from which the document should be loaded.

Remarks

The RestoreDocumentFromFile method is intended to implement caching of a web report.

To accomplish this task, you need to handle the ReportViewer.CacheReportDocument event, and if a report document is already generated, save it to a public location via the CacheReportDocumentEventArgs.SaveDocumentToFile method. Then, you need to handle the ReportViewer.RestoreReportDocumentFromCache event, and if the document is already stored in cache, restore it via the RestoreDocumentFromFile method.