make a datareport with condition

I made a datareport simple. just connect. but I want to make it with condition. I have 2
dtpicker for date. I want 1 day report or weekly or monthly report by dtpicker. example
I want 03/11/08 report or 01/11/08 to 03/11/08 report. But I dont know how make it. Where I write code or how I collect it. Help me. I want I select a date from dtpicker or form both dtpicker and click a button then the report show.

When working with DataReports you may want to have a look at this MSDN article that discuss it.

Moved to Reporting