How can I pass the parameters to load crystal report in a new window

See more:

C#

Hi, I'm developing a windows forms application using c#.net, in my application i want to enter start date and end date using a date time picker in form1 and need to open a crystal report with data between selected dates on form2 as a new window I've already designed crystal report and the report works fine. then designed form2 with crystal report viewer to view the report. but i don't know how to pass dates (parameters) from form1, to form2 which contain crystal report viewer. please someone can help me to do this.

Tried with following code, but nothing happened

What I have tried:

myDataSet ds = new myDataSet();
frm_ReportViewer viewForm = new frm_ReportViewer();
viewForm.Owner = this;

rpt_myreport report = new rpt_myreport();
report.Load("Reports\\rpt_myreport.rpt");

report.SetDataSource(ds);
viewForm.crv_common.ReportSource = report;
viewForm.ShowDialog(this);