public void readval(string i, string val)
{
L1tag curitem = listTag.Find(o => o.id == Convert.ToInt16(i));
//如果扫描周期小于1，按事件采集的，则不向数据库插入数据
if (curitem.scanrate < 1)
{
return;
}
if ((DateTime.Now - curitem.lasttime).TotalSeconds >= curitem.scanrate)
{
curitem.lasttime = DateTime.Now;
savedata(Convert.ToInt16(i), Convert.ToDouble(val));
}
}
public List <L1tag> dt_to_list(DataTable dt)
{
List <L1tag> taglist = new List <L1tag>();
if (dt != null && dt.Rows.Count > 0)
{
foreach (DataRow item in dt.Rows)
{
L1tag tag = new L1tag();
tag.id = Convert.ToInt16(item["id"]);
tag.name = item["name"].ToString();
tag.scanrate = Convert.ToInt16(item["scanrate"]);
tag.lasttime = DateTime.Now.AddHours(-2);
taglist.Add(tag);
}
}
return(taglist);
}
/// <summary>
/// 根据变量id获取服务端句柄
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public int getHandleServerById(int id)
{
L1tag curitem = listTag.Find(o => o.id == id);
return(curitem.itmHandleServer);
}