/// <summary>
/// ����Ա���༶ɾ��ѧ��(����)
/// </summary>
/// <param name="iClassIdArray">��ɾ����ѧ���İ༶��Id����</param>
public void DeleteStudentsByClass(int[] iStudentIdArray)
{
SqlParameter param = new SqlParameter("@stuId", SqlDbType.Int);
SqlConnection conn = new SqlConnection(SQLHelper.ConnectionStringSTEduSys);
conn.Open();
SqlTransaction trans = conn.BeginTransaction(IsolationLevel.ReadCommitted);
try
{
SearchDA sd = new SearchDA();
foreach (int iClassId in iStudentIdArray)
{
DataTable dt = sd.GetStudentsByClass(iClassId);
for (int i = 0; i < dt.Rows.Count; i++)
{
param.Value = dt.Rows[i][0];
SQLHelper.ExecuteNonQuery(SQLHelper.ConnectionStringSTEduSys,
CommandType.StoredProcedure, "SP_DelStuByID", param);
}
}
trans.Commit();
}
catch (Exception e)
{
trans.Rollback();
throw new ApplicationException(e.Message);
}
finally
{
conn.Close();
}
}
/// <summary>
/// ����Ա���������༶��ѧ��������(����)
/// </summary>
/// <param name="iClassIdArray">����������İ༶��Id����</param>
public void ResetStudentsPwdByClass(int[] iClassIdArray)
{
MD5CryptoServiceProvider HashMD5 = new MD5CryptoServiceProvider();
string pwd = ASCIIEncoding.ASCII.GetString(HashMD5.ComputeHash(ASCIIEncoding.ASCII.GetBytes("888888")));
//SqlParameter param = new SqlParameter("@stuId", SqlDbType.Int);
SqlParameter[] parms = {
new SqlParameter("@stuID",SqlDbType.Int),
};
SqlConnection conn = new SqlConnection(SQLHelper.ConnectionStringSTEduSys);
conn.Open();
SqlTransaction trans = conn.BeginTransaction(IsolationLevel.ReadCommitted);
try
{
SearchDA sd = new SearchDA();
foreach (int iClassId in iClassIdArray)
{
DataTable dt = sd.GetStudentsByClass(iClassId);
for (int i = 0; i < dt.Rows.Count; i++)
{
//param.Value = dt.Rows[i][0];
parms[0].Value=dt.Rows[i][0];
//parms[1].Value = pwd;
//SQLHelper.ExecuteNonQuery(SQLHelper.ConnectionStringSTEduSys,
// CommandType.StoredProcedure, "SP_ResetStuPwdByStuID", param);
SQLHelper.ExecuteNonQuery(SQLHelper.ConnectionStringSTEduSys,
CommandType.StoredProcedure, "SP_ResetStuPwdByStuID", parms);
}
}
trans.Commit();
}
catch (Exception e)
{
trans.Rollback();
throw new ApplicationException(e.Message);
}
finally
{
conn.Close();
}
}
/// <summary>
/// ����Ա���������༶��ѧ����ʹ������(����)
/// </summary>
/// <param name="iClassIdArray">������ʹ�����İ༶��Id����</param>
/// <param name="dtStartTime">��ʼ����</param>
/// <param name="dtEndTime">��ֹ����</param>
public void ChangeStuTimeLimitByClass(int[] iClassIdArray,DateTime dtStartTime,DateTime dtEndTime)
{
SqlParameter[] parms = {
new SqlParameter("@stuId",SqlDbType.Int),
new SqlParameter("@startDate",dtStartTime),
new SqlParameter("@endDate",dtEndTime)
};
SqlConnection conn = new SqlConnection(SQLHelper.ConnectionStringSTEduSys);
conn.Open();
SqlTransaction trans = conn.BeginTransaction(IsolationLevel.ReadCommitted);
try
{
SearchDA sd = new SearchDA();
foreach (int iClassId in iClassIdArray)
{
DataTable dt = sd.GetStudentsByClass(iClassId);
for (int i = 0; i < dt.Rows.Count; i++)
{
parms[0].Value = dt.Rows[i][0];
SQLHelper.ExecuteNonQuery(SQLHelper.ConnectionStringSTEduSys,
CommandType.StoredProcedure, "SP_ChangeTimeLimitByStuID", parms);
}
}
trans.Commit();
}
catch (Exception e)
{
trans.Rollback();
throw new ApplicationException(e.Message);
}
finally
{
conn.Close();
}
}