IDocumentStorageProvider Interface

When implemented by a class, manages document storages.

Namespace: DevExpress.XtraReports.Web.WebDocumentViewer

Assembly: DevExpress.XtraReports.v20.2.Web.dll

NuGet Package: DevExpress.Web.Reporting.Common

Declaration

C#

public interface IDocumentStorageProvider

VB.NET

Public Interface IDocumentStorageProvider

Remarks

When a CachedReportSourceWeb object generates a report document, it caches each generated page in a storage. By default, a MemoryDocumentStorage storage is created for every document. Implement this interface to create another type storage (e.g. DbDocumentStorage or a custom one).

The following code demonstrates how to register a custom document storage provider in a .NET Framework application:

C#

void Application_Start(object sender, EventArgs e) {
    DefaultWebDocumentViewerContainer.Register<IDocumentStorageProvider, CustomDocumentStorageProvider>();
}

VB.NET

Private Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
    DefaultWebDocumentViewerContainer.Register(Of IDocumentStorageProvider, CustomDocumentStorageProvider)()
End Sub 

The following code demonstrates how to register your IDocumentStorageProvider in a .NET Core application.

C#

using DevExpress.XtraReports.Web.WebDocumentViewer;
//...
public void ConfigureServices(IServiceCollection services) {
    //...
    services.AddSingleton<IDocumentStorageProvider>(new CustomDocumentStorageProvider());
}

You can utilize a predefined file document storage by calling the UseFileDocumentStorage (.NET Framework) / UseFileDocumentStorage (.NET Core) method.