Yet Another ReportSource to InstanceReportSource

[Maxine]

I'm trying to incorporate the new InstanceReportSource into an existing program that I've inherited.  I understand the Visual Basic examples given, but I'm stymied how to apply it to a C# program that is using interfaces.  Using the older version of Telerik that came with the program, the code will compile and run (although the designer won't come up).  Upon upgrading to the latest release of Telerik reporting, I've gotten the designer to come up on some of the reports.  However, I've got a few that are flagging errors about the deprecated RecordSource.  Therein is my confusion.  My attempts to incorporate the InstanceReportSource seems to result in more errors and I'm at a loss.  I did submit a trouble ticket when I was first intially using the trial version.  The end result was to "use the Instance Report Source".

I'm currently using Telerik Q2 2012 SP1, Visual Studio C# 10.0.30319.1 and .NET 2010 4.0.30319

In addition to the code listed below, I've also included a screen shot of the error message(s).   Any help or direction you could provide would be greatly appreciated.  Many Thanks!! 

 

namespace Reports

 {

 using System;

 using System.ComponentModel;

 using System.Drawing;

 using System.Windows.Forms;

 using Telerik.Reporting;

 using Telerik.Reporting.Drawing;



/// <summary>

 /// Summary description for Conservation2VacuumReport.

 /// </summary>

 public partial class ConservationPressureReport : Telerik.Reporting.Report, IStandardReport

 {

 public ConservationPressureReport()

 {

/// <summary>

/// Required for telerik Reporting designer support

/// </summary>

 InitializeComponent();

//

 // TODO: Add any constructor code after InitializeComponent call

 //

 }



#region IStandardReport Members

 ProjectReport IStandardReport.ProjectReport

 {

get { return this.ProjectReport.ReportSource as ProjectReport; }

 }



TankReport IStandardReport.TankReport

 {

get { return this.TankReport.ReportSource as TankReport; }

 }

ISO283Report IStandardReport.isoReport

 {

get { return isoReport.ReportSource as ISO283Report; }

 }

 public bool iso283Visible

 {

 get
{
return isoReport.Visible;

}



set

 {

isoReport.Visible = value;

 }

}



VacuumReport IStandardReport.vacuumReport

 {

 get { return this.VacuumReport.ReportSource as VacuumReport; }

 }

#endregion

}

}

 

 

 

[IvanY]

Hello Maxine,

Thank you for the provided code snippet. Since the introduction of Report Sources things have changed a little bit and for example the Report Viewers will now work with report sources instead of simple reports. Therefore what you have to do in your case is to cast the ReportSource to InstanceReportSource and get the ReportDocument which is the actual report. Consider the following code snippet:

var reportSource = (Telerik.Reporting.InstanceReportSource)this.ProjectReport.ReportSource;
var report = (Telerik.Reporting.Report)reportSource.ReportDocument;

return report;

I hope that helps.

Kind regards,
IvanY
the Telerik team

[Maxine]

IvanY

Thanks for the snippet.  Is there something else that might be missing?  When I compile the code the error I now get "Cannot implicitly convert type 'Telerik.Reporting.Report' to 'Reports.ProjectReport'. An explicit conversion exists (are you missing a cast?)"

With the code snippet, we are casting the ReportSource to the InstanceReportSource.  Did I misunderstand and not put the statement in the correct location?  (See attached snippet)

ProjectReport IStandardReport.ProjectReport

{

get {

//return this.ProjectReport.ReportSource as ProjectReport;

var reportSource = (Telerik.Reporting.InstanceReportSource)this.ProjectReport.ReportSource;

var report = (Telerik.Reporting.Report)reportSource.ReportDocument;

return report;

}

}

[IvanY]

Hello Maxine,

We will need additional information about your classes and interfaces (such as ProductReport and IStandartReport) - we need to be aware of your exact inheritance structure in order to advise you accordingly.

Regards,
IvanY
the Telerik team

[Raji]

cannot implicitly convert type 'Telerik.Reporting.TypeReportCourse' to 'Telerik.ReportViewer.Html5.WebForms.ReportSource'

give solution for it

[Stef]

Hi Raji,

If you are using the HTML5 Viewer, the client-side report source must providea short string desription what server-side ReportSource to be produced by the Reporting REST Service. An InstanceReportSource is a server-side ReportSource that cannot be used at the client.

For more details, examples and solution, please check How to Set Report Sources For Report Viewers operating via Telerik Reporting Services.

Regards,
Stef
Progress Telerik

[Raji]

what is identifier ? i got identifier issue can you tell how to set identifier?

 

what is this?

Identifier="Telerik.Reporting.Examples.CSharp.ProductCatalog, CSharp.ReportLibrary, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"

[Stef]

Hello Raji,

Please check the details and the examples in How to Set Report Sources For Report Viewers operating via Telerik Reporting Services.

The WebForms wrapper of the HTML5 Viewer has a client-side report source that can be set in code:

var clientReportSource = new Telerik.ReportViewer.Html5.WebForms.ReportSource();
clientReportSource.IdentifierType = IdentifierType.TypeReportSource;
clientReportSource.Identifier = typeof(ReportCatalog).AssemblyQualifiedName;//or <namespace>.<class>, <assembly> e.g. "MyReports.Report1, MyReportsLibrary"
clientReportSource.Parameters.Add("Parameter1", 123);
reportViewer1.ReportSource = clientReportSource;

The identifier type specifies if you are working with reports created in Vs Report Designer, or TRDP|TRDX file created by the Standalone Report Designer. If it is a custom identifier, this implies that on the server you are handling manually the string description of the report (the Identifier).

If you are requesting a report created by the Standalone Report Designer, the Identifier is a relative path to the TRDX|TRDP file that will be searched in the ReportFileResolver of the Reporting REST Service.

If you are requesting a report created by the VS Report Designer, the Identifier is the assembly qualified name of the report class - <namespace>.<report_class>, <assembly_name>.

Regards,
Stef
Progress Telerik

[Pabricio]

Hi, I´m a problem to display my report in Telerik.ReportViewer.Html5.WebForms. I have report make in VS (Telerik.Reporting.Report), but I can´t convert it in report view. Can you help me?

This is my code:

ReportProcessor reportProcessor = new ReportProcessor();
InstanceReportSource instanceReportSource = new InstanceReportSource();

instanceReportSource.ReportDocument = MyReport;

RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, null);

Telerik.ReportViewer.Html5.WebForms.ReportSource reportSource = new Telerik.ReportViewer.Html5.WebForms.ReportSource();
reportSource.IdentifierType = Telerik.ReportViewer.Html5.WebForms.IdentifierType.TypeReportSource;
reportSource.Identifier = result.DocumentName.GetType().AssemblyQualifiedName;
            
tlViewer.ReportSource = reportSource;

I don´t get an erro. The report just don´t display. My form appear like a blank form.

[Ildar]

Pabricio, did you find a solution?

[Pabricio]

No. I still have this problem.

[Neli]

Hi Pabricio,

If I understood correctly, you would like to display the report through our Html5 WebForms ReportViewer. The easiest way is by using the Telerik Web Forms Report Viewer Form Item Template. 

If you don't need to make any modifications of the report runtime, you can use TypeReportSource:

TypeReportSource typeReportSource = new TypeReportSource();
typeReportSource.Type = "Telerik.Reporting.Examples.CSharp.ReportCatalog, CSharp.ReportLibrary, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" ;
this.reportViewer1.ReportSource = typeReportSource;

Still, if you want to use IntanceReportSource, you need to implement CustomReportSourceResolver.

Note that this code is used to export the report to PDF programmatically:

ReportProcessor reportProcessor = new ReportProcessor();
InstanceReportSource instanceReportSource = new InstanceReportSource();
instanceReportSource.ReportDocument = MyReport;
RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, null);

If you don't need such a functionality, I would recommend removing this part of the code.

[Ildar]

Neli,

There is a error in your code: 'TypeReportSource' does not contain a definition for 'Type'.

typeReportSource.Type = "Telerik.Reporting.Examples.CSharp... ";

[Neli]

Hi Ildar,

I would like to apologize for the misunderstanding. The property ifs TypeName. However, for the WebForms viewer, you need to use an instance of Telerik.ReportViewer.Html5.WebForms.ReportSource. I attached a sample project that demonstrates the approach.