or
textbox1.Visible = false;(this.Items.Find("textbox1", true)[0] as Telerik.Reporting.ReportItem).Visible = true;readonly System.Xml.XmlReaderSettings _settings = new System.Xml.XmlReaderSettings { IgnoreWhitespace = true };protected void Page_Load(object sender, EventArgs e){ if (!IsPostBack) { Telerik.Reporting.Report report; using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(@"Report.trdx", _settings)) { var xmlSerializer = new ReportXmlSerializer(); report = (Telerik.Reporting.Report)xmlSerializer.Deserialize(xmlReader); } report.DataSource = GetDataSource(); //List<ParentObject> var reportProcessor = new Telerik.Reporting.Processing.ReportProcessor(); var instanceReportSource = new InstanceReportSource { ReportDocument = report }; report.Items["detail"].ItemDataBinding += ReportOnItemDataBinding; ... }}private void ReportOnItemDataBinding(object sender, EventArgs eventArgs){ var detailSection = sender as Telerik.Reporting.Processing.DetailSection; using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(@"SubReport.trdx", _settings)) { var xmlSerializer = new ReportXmlSerializer(); var subReport = (Telerik.Reporting.Report)xmlSerializer.Deserialize(xmlReader); subReport.DataSource = ((ParentObject)detailSection.DataObject.RawData).Children; var sr = (SubReport)detailSection.ItemDefinition.Items["subReport1"]; sr.ReportSource = new InstanceReportSource {ReportDocument = subReport}; }}