How to set SubReports DataSource in Asp.net Core

[Carlos]

Here is my problem.  Our shop has three environments that the development team must work with, development, testing and production.  I have successfully been able to change the DataSource (WebServiceDataSource) of the master report by changing the ServiceUrl.  For subreports I have been able to change the ReportSource based on the environment but I have not been able to locate a way to change the DataSource.  Does anyone have an idea how this is done? 

Here is the code I have right now:

public class TexasProtaxCustomReportResolver : Telerik.Reporting.Services.Engine.IReportResolver
    {
        private readonly string _path;
        private readonly string _apiUrl;

        public TexasProtaxCustomReportResolver(string path, string apiUrl)
        {
            _path = path;
            _apiUrl = apiUrl;
        }

        public Telerik.Reporting.ReportSource Resolve(string reportName)
        {
            var reportPacker = new ReportPackager();

            string reportPath = Path.Combine(_path, reportName);
            using (var sourceStream = System.IO.File.OpenRead( reportPath))
            {
                var report = (Telerik.Reporting.Report)reportPacker.UnpackageDocument(sourceStream);
                SetReportSource((ReportItemBase)report);

                var irs = new InstanceReportSource
                {
                    ReportDocument = report
                };

                return irs;
            }

        }

       private void SetReportSource(ReportItemBase reportItemBase)
        {
            if (reportItemBase.Items.Count < 1)
                return;

            if (reportItemBase is Telerik.Reporting.Report)
            {
                var report = (Telerik.Reporting.Report)reportItemBase;

                var webServiceDataSource = (WebServiceDataSource)report.DataSource;
                string url = webServiceDataSource.ServiceUrl;
                url = url.ToLower().Replace("localhost:5001", _apiUrl);
                webServiceDataSource.ServiceUrl = url;
            }

            foreach (var item in reportItemBase.Items)
            {
                // recursively set the reportsource
                SetReportSource(item);

                if (item is SubReport subReport)
                {
                    // Save Parameters
                    var clonable = subReport.ReportSource.Parameters as ICloneable;
                    var parameters = (ParameterCollection)clonable.Clone();

                    string fileName = Path.GetFileName(subReport.ReportSource.ToString());
                    var uriReportSource = new UriReportSource
                    {
                        Uri = Path.Combine(_path, fileName)
                    };
                    uriReportSource.Parameters.AddRange(parameters);

                    subReport.ReportSource = uriReportSource;

                    continue;
                }
            }
        }

    }

[Carlos]

Every time I post a question I figure it out.  Instead of a UriReportSource I used an XmlReportSource which I can get to the report object.  Code follows for those interested.

public class TexasProtaxCustomReportResolver : Telerik.Reporting.Services.Engine.IReportResolver
    {
        private readonly string _path;
        private readonly string _apiUrl;

        public TexasProtaxCustomReportResolver(string path, string apiUrl)
        {
            _path = path;
            _apiUrl = apiUrl;
        }

        public Telerik.Reporting.ReportSource Resolve(string reportName)
        {
            var reportPacker = new ReportPackager();

            string reportPath = Path.Combine(_path, reportName);
            using (var sourceStream = System.IO.File.OpenRead( reportPath))
            {
                var report = (Telerik.Reporting.Report)reportPacker.UnpackageDocument(sourceStream);
                SetReportSource((ReportItemBase)report);

                var irs = new InstanceReportSource
                {
                    ReportDocument = report
                };

                return irs;
            }

        }

       private void SetReportSource(ReportItemBase reportItemBase)
        {
            if (reportItemBase.Items.Count < 1)
                return;

            if (reportItemBase is Telerik.Reporting.Report)
            {
                var report = (Telerik.Reporting.Report)reportItemBase;

                var webServiceDataSource = (WebServiceDataSource)report.DataSource;
                string url = webServiceDataSource.ServiceUrl;
                url = url.ToLower().Replace("localhost:5001", _apiUrl);
                webServiceDataSource.ServiceUrl = url;
            }

            foreach (var item in reportItemBase.Items)
            {
                // recursively set the reportsource
                SetReportSource(item);

                if (item is SubReport subReport)
                {
                    // Save Parameters
                    var clonable = subReport.ReportSource.Parameters as ICloneable;
                    var parameters = (ParameterCollection)clonable.Clone();
                    string fileName = Path.GetFileName(subReport.ReportSource.ToString());
                    string subReportPath = Path.Combine(_path, fileName);

                    var reportPacker = new ReportPackager();

                    string xml;
                    using (var sourceStream = System.IO.File.OpenRead(subReportPath))
                    {

                        var report = (Telerik.Reporting.Report)reportPacker.UnpackageDocument(sourceStream);

                        var webServiceDataSource = (WebServiceDataSource)report.DataSource;
                        string url = webServiceDataSource.ServiceUrl;
                        url = url.ToLower().Replace("localhost:5001", _apiUrl);
                        webServiceDataSource.ServiceUrl = url;

                        using (StringWriter writer = new StringWriter())
                        {
                            ReportXmlSerializer serializer = new ReportXmlSerializer();
                            serializer.Serialize(writer, report);
                            xml = writer.ToString();
                        }

                    }

                    var xmlReportSource = new XmlReportSource
                    {
                        Xml = xml
                    };
                    xmlReportSource.Parameters.AddRange(parameters);
                    subReport.ReportSource = xmlReportSource;

                    continue;
                }
            }
        }

    }