//this function is used to determine if the student id exists
private Boolean IsExistStudentIdStudentInformation(CommonExchange.SysAccess userInfo, String studentId, String studentSysId)
{
Boolean isExist = false;
using (RemoteClient.RemCntStudentManager remClient = new RemoteClient.RemCntStudentManager())
{
isExist = remClient.IsExistsStudentIdStudentInformation(userInfo, studentId, studentSysId);
}
return(isExist);
} //-------------------------------