Display report (byte[]) in html5 report viewer

[Rezus]

Hello,

I have an WebAssembly blazor project and I am trying to display a report in a Telerik HTML5 ReportViewer Page. I am not even sure if what i'm trying to accomplish can be done. Can u give me some example/idea to process this one to be done, how I can display report byte to web viewer?

 

Any help or tips or direction will be apreciated

Thank you

Rezus

[Dimitar]

Hello Rezus,

Thank you for the provided information!

To display Telerik reports in a Blazor WebAssembly application, you may use the Blazor Report Viewer - Integrating the Telerik Reporting Blazor Report Viewer - Telerik Reporting. 

However, by default, the Reporting service resolves reports from type definitions or TRDP/TRDX/TRBP files. To create a report from a byte array, it would be necessary to implement a custom IReportSourceResolver, for example:

public class CustomReportSourceResolver : IReportSourceResolver
{

    public ReportSource Resolve(string uri, OperationOrigin operationOrigin, IDictionary<string, object> currentParameterValues)
    {
        var reportPackager = new ReportPackager();
        byte[] reportBytes = ...;

        MemoryStream stream = new(reportBytes);
        Telerik.Reporting.Report report = (Telerik.Reporting.Report)reportPackager.UnpackageDocument(stream);

        var instanceReportSource = new InstanceReportSource
        {
            ReportDocument = report
        };

        return instanceReportSource;
    }
}

For more details on the topic, you may refer to the Using Custom ReportSource Resolver and Custom ReportDocument Resolver - Telerik Reporting article.

Let me know if you have any additional questions.

Regards,
Dimitar
Progress Telerik