How Do I Print All Employees Passes On One Click

i have a requirement to print all employee Service Card when user click on one button,

i have entered all employee records in one table. problem is that when

i click on the button only one employee record is shown. i am using following code to test my requirements .

  protected void EmpSC_Click(object sender, EventArgs e)
 { 
            EmployeeSpDataSet dataset = new EmployeeSpDataSet();
 var AllEmp = _service.GetAllEmployeeDuty().OrderByDescending(x => x.EndDate)
.GroupBy(x => x.Employee_Id).Select(x => x.First()).Take(3).ToList();
 if (AllEmp != null)  
           { 
                for (int i = 1; i <= 3; i++)  
               {
 var empsp = AllEmp.FirstOrDefault();    
                     var emp = _service.GetAllEmployee().Where(x => x.Id == empsp.Employee_Id).FirstOrDefault();
 dataset.EmployeeScpass.Rows.Add(emp.Id,
 emp.Name,
 emp.Cnic,
 empsp.ToSectorName,
 emp.ImgBody
 );  
                   AllEmp.Remove(empsp);   
                  } 
                                }

is there is any way to get that thing on track.