Binding crystal report to the datagrid and exporting it to the pdf format

Hi,
I need to bind the crystal report to the datagrid dynamically. and later it should be exported to the pdf format.how can i do this.I need to do this project in c#.net. If you have any idea regarding this, plz reply to it as soon as possible. and even if there are any other way to generate and exporting crystal report to pdf, i would like to know that too.
thanks in advanced.