//Method to update employee details
public static bool UpdateEmployee(Employee emp)
{
bool isUpdated = false;
try
{
//Validating employee details
if (ValidateEmployee(emp))
{
//Updating the employee details by calling DAL Update method
isUpdated = EmployeeOperations.UpdateEmployee(emp);
}
else
{
throw new EmployeeException("Please provide valid employee details");
}
}
catch (EmployeeException ex)
{
throw ex;
}
catch (SystemException ex)
{
throw ex;
}
return(isUpdated);
}
//Method to Deserialize Employee
public static List <Employee> DeserializeEmployee()
{
List <Employee> empList = null;
try
{
//deserializing employee by calling DAL deserialize method
empList = EmployeeOperations.DeserializeEmployee();
}
catch (EmployeeException ex)
{
throw ex;
}
catch (SystemException ex)
{
throw ex;
}
return(empList);
}
//Method to serialize employee details
public static bool SerializeEmployee()
{
bool isSerialized = false;
try
{
//Serializing by calling DAL serialize method
isSerialized = EmployeeOperations.SerializeEmployee();
}
catch (EmployeeException ex)
{
throw ex;
}
catch (SystemException ex)
{
throw ex;
}
return(isSerialized);
}
//Method to display all employees
public static List <Employee> DisplayEmployees()
{
List <Employee> empList = null;
try
{
//displaying employee by calling DAL display method
empList = EmployeeOperations.DisplayEmployees();
}
catch (EmployeeException ex)
{
throw ex;
}
catch (SystemException ex)
{
throw ex;
}
return(empList);
}
//Method to search employee
public static Employee SearchEmployee(int empID)
{
Employee emp = null;
try
{
//Searching employee by calling DAL search method
emp = EmployeeOperations.SearchEmployee(empID);
}
catch (EmployeeException ex)
{
throw ex;
}
catch (SystemException ex)
{
throw ex;
}
return(emp);
}
//Method to delete employee details
public static bool DeleteEmployee(int empID)
{
bool isDeleted = false;
try
{
//Deleting employee by calling delete method of DAL
isDeleted = EmployeeOperations.DeleteEmployee(empID);
}
catch (EmployeeException ex)
{
throw ex;
}
catch (SystemException ex)
{
throw ex;
}
return(isDeleted);
}
