provide table name with dataset in report data source...
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataSet1 ds = new DataSet1();
ReportDataSource datasourse = new ReportDataSource("DataSet1_tableName", ds.Tables[0]);
rv_ipd.LocalReport.ReportPath = Server.MapPath("~/Report.rdlc");
rv_ipd.LocalReport.DataSources.Clear();
rv_ipd.LocalReport.DataSources.Add(datasourse);
}
}