/// <summary>
/// Converts an array of item objects to an array of GetOPCITEMDEF objects.
/// </summary>
internal static OpcRcw.Da.OPCITEMDEF[] GetOPCITEMDEFs(TsCDaItem[] input)
{
OpcRcw.Da.OPCITEMDEF[] output = null;
if (input != null)
{
output = new OpcRcw.Da.OPCITEMDEF[input.Length];
for (int ii = 0; ii < input.Length; ii++)
{
output[ii] = new OpcRcw.Da.OPCITEMDEF();
output[ii].szItemID = input[ii].ItemName;
output[ii].szAccessPath = (input[ii].ItemPath == null) ? String.Empty : input[ii].ItemPath;
output[ii].bActive = (input[ii].ActiveSpecified) ? ((input[ii].Active) ? 1 : 0) : 1;
output[ii].vtRequestedDataType = (short)Technosoftware.DaAeHdaClient.Com.Interop.GetType(input[ii].ReqType);
output[ii].hClient = 0;
output[ii].dwBlobSize = 0;
output[ii].pBlob = IntPtr.Zero;
}
}
return(output);
}
private string BindOPCDb()
{
string errText = string.Empty;
DataSet ds = DbInf.GetOPCDbInfo(ref errText);
if (errText.Length > 0)
{
return(errText);
}
int itemNum = 0;
//创建同步组
DataRow[] drs = ds.Tables[0].Select("type = 'SYNC'");
if ((itemNum = drs.Length) > 0)
{
_idAim = new string[itemNum];
_syncItemHandle = new int[itemNum];
//添加组
errText = _opcDaConn.AddSyncGroup(out _syncGroupOpcInfo);
if (errText.Length > 0)
{
return(errText);
}
//组装对象
OpcRcw.Da.OPCITEMDEF[] items = new OpcRcw.Da.OPCITEMDEF[itemNum];
for (int i = 0; i < itemNum; i++)
{
items[i].szAccessPath = "";
items[i].bActive = 1;
items[i].dwBlobSize = 1;
items[i].pBlob = IntPtr.Zero;
items[i].hClient = i;
items[i].vtRequestedDataType = (short)VarEnum.VT_BSTR;
items[i].szItemID = drs[i]["db_str"].ToString();
_idAim[i] = drs[i]["id"].ToString() + _idAimSplitStr + drs[i]["db_aim"].ToString();
}
//添加对象
errText = _opcDaConn.AddSyncItems(_syncGroupOpcInfo.SyncGroupObj, items, _syncItemHandle);
if (errText.Length > 0)
{
return(errText);
}
}
//创建异步组
drs = ds.Tables[0].Select("type = 'ASYNC'");
if ((itemNum = drs.Length) > 0)
{
_idAim = new string[itemNum];
//添加组
errText = _opcDaConn.AddAsyncGroup(out _asyncGroupOpcInfo);
if (errText.Length > 0)
{
return(errText);
}
//组装对象
OpcRcw.Da.OPCITEMDEF[] items = new OpcRcw.Da.OPCITEMDEF[itemNum];
for (int i = 0; i < itemNum; i++)
{
items[i].szAccessPath = "";
items[i].bActive = 1;
items[i].dwBlobSize = 1;
items[i].pBlob = IntPtr.Zero;
items[i].hClient = i;
items[i].vtRequestedDataType = (short)VarEnum.VT_BSTR;
items[i].szItemID = drs[i]["db_str"].ToString();
AsyncItemHandleToDeviceDic.Add(i, drs[i]["id"].ToString() + _idAimSplitStr + drs[i]["db_aim"].ToString());
}
//添加对象
int[] itemHandle = new int[itemNum];
_opcDaConn.AddAsyncItems(_asyncGroupOpcInfo.AsyncGroupObj, items, itemHandle);
if (errText.Length > 0)
{
return(errText);
}
}
return(errText);
}
