Here, I have created a crystal report with some fields of the database object i.e. product_id, product_name, product_quantity from product table.

After creating a report you have to host it in your application. Steps for hosting crystal report in an application.

·         Drags the Crystal Report Viewer control from toolbox drop it into windows form.

·         Drag the button from toolbox and drop it into windows form.

·    Use namespaces in your application as given below:

using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Windows.Forms;

·    On the click event of button write some code as mentioned below: 

private void button1_Click (object sender, EventArgs e)
    {
         ReportDocument cryRpt = new ReportDocument ();
         cryRpt.Load ("D:\\rohit\\crystal reports\\CrystalReport1.rpt"); //crystal report 
                                                                           path
         crystalReportViewer1.ReportSource = cryRpt;
         crystalReportViewer1.Refresh ();
       }

     After performing the above tasks you can see the output by running your application.

Click on the Show Report button to see a report.