void comArduino_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
System.Threading.Thread.Sleep(50);//如果不sleep的话得到的串会分开
int n = comArduino.BytesToRead;//先记录下来，避免某种原因，人为的原因，操作几次之间时间长，缓存不一致
byte[] buf = new byte[n];//声明一个临时数组存储当前来的串口数据
comArduino.Read(buf, 0, n);//读取缓冲数据
builder.Clear();//清除字符串构造器的内容
//因为要访问ui资源，所以需要使用invoke方式同步ui。
this.Invoke((EventHandler)(delegate
{
builder.Append(Encoding.ASCII.GetString(buf));
char[] trimchars = { '\r', '\n' };
string originaldata = builder.ToString().Trim(trimchars);
string[] dataarray = originaldata.Split(',');
//这里需要读取相关信息，然后显示在dataadd中
//同时将数据插入相关数据库
DataOperate dataoperator = new DataOperate();
IList<ParamInfo> paraminfo = new List<ParamInfo>();
paraminfo = dataoperator.GetParamByParamName(dataarray[1]);
int deviceid = dataoperator.GetDeviceIDbyDeviceDesc(dataarray[0]);
OriginalDataInfo datainfo = new OriginalDataInfo();
datainfo.DeviceID = deviceid;
datainfo.InsertTime = DateTime.Now;
datainfo.ParamID = paraminfo[0].ParamID;
datainfo.ParamValue = float.Parse( dataarray[2]);
dataoperator.InsertData(datainfo);
string dataadd = "设备信息:" + dataarray[0] + " " + "参数描述:" + paraminfo[0].ParamDesc + " " + "时间:" + datainfo.InsertTime + " " + "参数值:" + dataarray[2];
if (lbxData.Items.Count > 1000)
{
lbxData.Items.RemoveAt(0);
}
lbxData.Items.Add(dataadd);
}));
}
public void InsertData(OriginalDataInfo datainfo)
{
StringBuilder moniterPlaceSQL = new StringBuilder();
//获得每个命令的参数数组
SqlParameter[] moniterPlaceParms = GetMoniterPlaceParameters();
SqlCommand cmd = new SqlCommand();
//设置的参数
moniterPlaceParms[0].Value = datainfo.DeviceID;
moniterPlaceParms[1].Value = datainfo.InsertTime;
moniterPlaceParms[2].Value = datainfo.ParamID;
moniterPlaceParms[3].Value = datainfo.ParamValue;
foreach (SqlParameter parm in moniterPlaceParms)
cmd.Parameters.Add(parm);
//创建数据库连接
using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectionStringOrderDistributedTransaction))
{
//插入数据
moniterPlaceSQL.Append(SQL_INSERT_ORIGINALDATA);
conn.Open();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = moniterPlaceSQL.ToString();
//读取输出的查询
using (SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection))
{
rdr.Read();
}
//清除参数
cmd.Parameters.Clear();
}
}