public int UpdateRing(RingEntity t_Ring)
{
SqlParameter[] p=new SqlParameter[]{
new SqlParameter("@Ring_id",t_Ring.Ring_id),
new SqlParameter("@Ring_name",t_Ring.Ring_name)
};
int i=SqlDBHelp.GetExecute("update Ring set ring_id=@Ring_id,ring_name=@Ring_name where ring_id=@Ring_id", p) ;
return i;
}
//根据外键进行查询
//插入操作
public int InsertRing(RingEntity t_Ring)
{
//定义插入数据的参数数组
SqlParameter[] p=new SqlParameter[]{
new SqlParameter("@Ring_id",t_Ring.Ring_id),
new SqlParameter("@Ring_name",t_Ring.Ring_name)
};
int i=SqlDBHelp.GetExecute("insert into Ring values (@Ring_id,@Ring_name)", p) ;
return i;
}
//根据外键进行查询
//插入操作
public static int InsertRing(RingEntity t_Ring)
{
int i=-1;
//定义插入数据的参数数组
try
{
i=dal.InsertRing(t_Ring);
}
catch(Exception ex)
{
throw new Exception(ex.Message);
}
return i;
}
public RingEntity SelectRingByID(int t_ring_id)
{
RingEntity t_Ring= new RingEntity();
SqlDataReader sdr=null;
using(sdr=SqlDBHelp.GetReader("select * from Ring where ring_id="+t_ring_id))
{
if(sdr.Read())
{
t_Ring.Ring_id=(int)sdr.GetValue(0);
t_Ring.Ring_name=(string)sdr.GetValue(1);
}
}
sdr.Close();
return t_Ring;
}
//根据主键查询整个表
public IList<RingEntity> GetAllRing()
{
IList<RingEntity> t_Rings = new List<RingEntity>();
SqlDataReader sdr = null;
using(sdr=SqlDBHelp.GetReader("select * from Ring"))
{
while(sdr.Read())
{
RingEntity t_Ring= new RingEntity();
t_Ring.Ring_id=(int)sdr.GetValue(0);
t_Ring.Ring_name=(string)sdr.GetValue(1);
t_Rings.Add(t_Ring);
}
sdr.Close();
}
return t_Rings;
}
