public virtual void OnDataChange(int dwTransid, int hGroup, int hrMasterquality, int hrMastererror, int dwCount, int[] phClientItems, object[] pvValues, short[] pwQualities, OpcRcw.Da.FILETIME[] pftTimeStamps, int[] pErrors)
{
for (int i = 0; i < dwCount; i++)
{
object[] objArray;
OPCItem item = this.items[phClientItems[i]];
if (pvValues[i] is Array)
{
Array array = (Array)pvValues[i];
objArray = new object[array.Length];
for (int j = 0; j < array.Length; j++)
{
objArray[j] = array.GetValue(j);
}
}
else
{
objArray = new object[] { pvValues[i] };
}
if (this.OnDataChanged != null)
{
this.OnDataChanged(this, new DataChangedEventArgs(this.parent.ServerName, this.groupName, item.ItemName, objArray));
}
}
}
public OPCItem AddItem(string itemName, string opcItemName, int clientHandler, bool isActive)
{
OPCItem item = new OPCItem(this, itemName, opcItemName, clientHandler, isActive);
this.AddItem(item);
this.items.Add(item);
return(item);
}
public OPCItem this[string itemName]
{
get
{
OPCItem item = null;
if (this.dictItemName.ContainsKey(itemName))
{
item = this.dictItemName[itemName];
}
return(item);
}
}
public OPCItem this[int clientHandler]
{
get
{
OPCItem item = null;
if (this.dictItemIndex.ContainsKey(clientHandler))
{
item = this.dictItemIndex[clientHandler];
}
return(item);
}
}
private bool AddItem(OPCItem item)
{
bool flag = true;
OPCITEMDEF[] pItemArray = new OPCITEMDEF[1];
pItemArray[0].szAccessPath = "";
pItemArray[0].szItemID = item.OPCItemName;
pItemArray[0].bActive = item.IsActive ? 1 : 0;
pItemArray[0].hClient = item.ClientHandler;
pItemArray[0].dwBlobSize = 0;
pItemArray[0].pBlob = IntPtr.Zero;
pItemArray[0].vtRequestedDataType = 0;
IntPtr zero = IntPtr.Zero;
IntPtr ppErrors = IntPtr.Zero;
try
{
((IOPCItemMgt)this.group).AddItems(1, pItemArray, out zero, out ppErrors);
int[] destination = new int[1];
Marshal.Copy(ppErrors, destination, 0, 1);
if (destination[0] == 0)
{
OPCITEMRESULT opcitemresult = (OPCITEMRESULT)Marshal.PtrToStructure(zero, typeof(OPCITEMRESULT));
item.ServerHandler = opcitemresult.hServer;
return(flag);
}
flag = false;
throw new Exception("在组中添加项不成功，原因：" + this.parent.GetLastError(destination[0]));
}
finally
{
if (zero != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(zero);
zero = IntPtr.Zero;
}
if (ppErrors != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(ppErrors);
ppErrors = IntPtr.Zero;
}
}
return(flag);
}
protected void AddItem(string itemName, OPCItem item)
{
this.dictItemName.Add(itemName, item);
}
internal void Add(OPCItem item)
{
this.AddItem(item.ItemName, item);
this.dictItemIndex.Add(item.ClientHandler, item);
}
private bool AddItem(OPCItem item)
{
bool flag = true;
OPCITEMDEF[] pItemArray = new OPCITEMDEF[1];
pItemArray[0].szAccessPath = "";
pItemArray[0].szItemID = item.OPCItemName;
pItemArray[0].bActive = item.IsActive ? 1 : 0;
pItemArray[0].hClient = item.ClientHandler;
pItemArray[0].dwBlobSize = 0;
pItemArray[0].pBlob = IntPtr.Zero;
pItemArray[0].vtRequestedDataType = 0;
IntPtr zero = IntPtr.Zero;
IntPtr ppErrors = IntPtr.Zero;
try
{
((IOPCItemMgt) this.group).AddItems(1, pItemArray, out zero, out ppErrors);
int[] destination = new int[1];
Marshal.Copy(ppErrors, destination, 0, 1);
if (destination[0] == 0)
{
OPCITEMRESULT opcitemresult = (OPCITEMRESULT) Marshal.PtrToStructure(zero, typeof(OPCITEMRESULT));
item.ServerHandler = opcitemresult.hServer;
return flag;
}
flag = false;
throw new Exception("在组中添加项不成功，原因：" + this.parent.GetLastError(destination[0]));
}
finally
{
if (zero != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(zero);
zero = IntPtr.Zero;
}
if (ppErrors != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(ppErrors);
ppErrors = IntPtr.Zero;
}
}
return flag;
}
public OPCItem AddItem(string itemName, string opcItemName, int clientHandler, bool isActive)
{
OPCItem item = new OPCItem(this, itemName, opcItemName, clientHandler, isActive);
this.AddItem(item);
this.items.Add(item);
return item;
}
protected void AddItem(string itemName, OPCItem item)
{
this.dictItemName.Add(itemName, item);
}
internal void Add(OPCItem item)
{
this.AddItem(item.ItemName, item);
this.dictItemIndex.Add(item.ClientHandler, item);
}
