/// <summary>
/// 根据学员对象发生异常
/// </summary>
/// <param name="student"></param>
/// <returns></returns>
public int DeleteStudent(Students student)
{
return(db.Delete(student));
var sql = "delete from Students where StudentId=" + student.StudentId;
try
{
return(SQLHelper.ExecuteNonQuery(sql, null));
}
catch (SqlException ex)
{
if (ex.Number == 547)
{
throw new Exception("该学员被其他数据表引用，不能直接删除");
}
else
{
throw new Exception("删除学员时数据库操作异常：\r\n" + ex.Message);
}
}
catch (Exception ex)
{
throw ex;
}
}