rpt.DataSource = new Select()
TelRpt.Run //This is the telerik report and only gives isinruntimemode
We are not sure what you are trying to achieve? Generally you can start the report processing with the ReportProcessor as shown in the Exporting Report Programmatically help article.
If you need additional assistance please elaborate further on your requirements.
Have you tried the new visualization options in Telerik Reporting Q1 2013? You can get them from your account.