这里是我的Web方法我想补充的所有会议,我allmeeting
列表,然后我想退货,并通过剑道电网接收如何使用SqlDataReader获取多个记录?
List<DefMeetingDTO> AllDefCompany = new List<DefMeetingDTO>();
List<DefMeetingDTO> f = new List<DefMeetingDTO>();
SqlDataReader reader = cmd.ExecuteReader();
if (reader.HasRows)
{
DefMeetingDTO d = new DefMeetingDTO();
int ji = reader.FieldCount;
do
{
while (reader.Read())
{
//for(int i = 0 ; i < ji ; i++) {
if (!reader.IsDBNull(reader.GetOrdinal("md_id")))
{
d.md_id = Convert.ToInt32(reader["md_id"]) as int? ?? default(int);
}
else
{
d.md_id = 0;
}
if (!reader.IsDBNull(reader.GetOrdinal("md_visitor_name")))
{
d.md_visitor_name = (string)(reader["md_visitor_name"]);// as DateTime? ?? default(DateTime);
}
else
{
// d.m_datetime = null;
}
if (!reader.IsDBNull(reader.GetOrdinal("md_visitor_cell")))
{
d.md_visitor_cell = (reader["md_visitor_cell"]).ToString();// as string? ?? default(string);
}
if (!reader.IsDBNull(reader.GetOrdinal("md_visitor_company")))
{
d.md_visitor_company = (string)reader["md_visitor_company"];
}
if (!reader.IsDBNull(reader.GetOrdinal("purpose_name")))
{
d.purpose_name = (string)reader["purpose_name"];
}
if (!reader.IsDBNull(reader.GetOrdinal("m_datetime")))
{
d.m_datetime = Convert.ToDateTime(reader["m_datetime"]) as DateTime? ?? default(DateTime);
}
AllDefCompany.Add(d);
}
}
while(reader.NextResult());
}
我的SQL查询返回结果作为托运4行
10878 | Wasim Riaz | 0300449436 | Jade | N/A | NULL
71123 | bb | +9232531256 | F | mee | 2015-09-03
71124 | CC | +923218531256 | Fb | N/A | 2015-09-03
71125 | DD | +923218531256 | Gb | N/A | 2015-09-03
但SqlDataReader
到第一排,每次迭代仅供参考,并不去第二在allmeetinglist()
和连接时间增加了
举动'DefMeetingDTO d =新DefMeetingDTO();'到内环 –
任何目的的使用** reader.NextResult()**。你执行两个查询吗? – shreesha
不仅1个查询,但读者只运行1次然后再次运行并返回第一条记录10次,然后连接超时 –