I am new to .Net Funda, I have gone through the article Title "RDLC Reporting in Windows Application" here http://www.dotnetfunda.com/articles/article2204-rdlc-reporting-in-windows-application.aspx. It was great, can any body help me in implementing subreports inside main rdlc in VS 2010 Windows application. My Requirement is as follows,need to develop Main Report with 2 SubReports all 3 reports will be calling same SP, SP has 4 input parameters, the last paramter will change depending on the report.For example Main Report is to display Address,Subreport1 for CashDetails and Subreport2 to display TradeDetails. Means the first 3 input parameters will be same for all the reports ,but the fourth parameter is 0 for Address and 1 for CashDetails and 2 for TradeDetails. Thanks in advance.