step 1: Create crystal report in your project.
step 2: Write select query for View.
public DataTable selectallrecord()
{ DataSet DS = new DataSet();
string USER = "";
USER = "SELECT * FROM StudentInfo";
SqlDataAdapter DA = new SqlDataAdapter(USER, cn);
DA.Fill(DS);
DataTable DT = DS.Tables[0];
return DT;
}
step 3: On Button click event bind with crystal report.
private void button1_Click(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt = selectallrecord();
CrystalReport1 cr1 = new CrystalReport1();
cr1.SetDataSource(dt);
crystalReportViewer1.ReportSource = cr1;
}