如何在asp.net中使用水晶报表?

I am new to .net and C# and my asp crystal report will not print or export. I have read that you have to use sessions to do this. Can anyone give me any tips for this? I have a basic web page setup that lets you see our report and input a parameter. That is working fine. Whenever I try to print or export my page starts to do something then stops and I get nothing. Any suggestions?here is my codeI am new to .net and C# and my asp crystal repo