bind datatable to reporting services from code

i have a datable dt with data obtained from grid in code behind

i have created a report.rdlc an added table to it so tht i can get the data in a formatted order

how do i assign dt as datasource for the report without physically creating dataset 

how do i bind the dt to report and add the needed field to the report 

currently i get error The table ‘table1’ is in the report body but the report has no data set.  Data regions are not allowed in reports without datasets.