/// <summary>
/// 释放连接
/// </summary>
public void Disconnect()
{
try
{
if (isConnect == true)
{
clientHandleDict.Clear();
opcServer.Disconnect();
isConnect = false;
}
}
catch (Exception)
{
//SCLog.Instance.LogError( "断开OPCServer连接时错误:" + err.Message );
}
}
///////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Disconnects the opc client (Removes all items and groups)
/// </summary>
///////////////////////////////////////////////////////////////////////////////////////////
public void Disconnect()
{
try {
RemoveAllItems();
RemoveAllGroups();
if ((mServer != null))
{
mServer.Disconnect();
}
} catch (Exception ex) {
//Exception Event
Console.WriteLine("in Disconnect, error is: " + ex.Message);
} finally {
mServer = null;
GC.Collect();
}
}
//################ Sub procedure to initialize OPC Server ######
private void StopOPCClient()
{
// ==
// Description : 断开连接OPCServer，返回值False为断开失败，True为断开成功
// Created : 2009/01/19
// Author : zgh
// Update :
// Updater :
// ==
//bool value = false;
try
{
ObjOPCGroup.IsActive = false;
//ObjOPCGroup.Remove(ObjOPCGroup.ServerHandle)
ObjOPCGroups.RemoveAll();
ObjOPCItems = null;
ObjOPCGroups = null;
ObjOPCGroup = null;
//ObjOPCGroup.AsyncReadComplete += ObjOPCGroup_AsyncReadComplete;
ObjOPCServer.Disconnect();
ObjOPCServer = null;
//colTagName = Nothing
//value = true;
//MessageLog("clsDeviceOPC.StopOPCClient(): Disconnected from OPC device \'" + DeviceName + "\'");
LOG.Info("断开OPC连接 \'" + SourceName + "\'");
}
catch (Exception ex)
{
//value = false;
//WarnLog(ex.StackTrace + "\r\n" + ex.Message);
// MsgBox(ex.Message)
LOG.Error(string.Format("OPCDataSource断开连接出错行：{0},", ex.Message));
}
finally
{
System.GC.Collect(); //强制垃圾回收
}
}