//从服务器中移除组
public void RemoveGroup(SHHOPCGroup group)
{
if (_GroupList.Contains(group) == true)
{
group.DetachFromServer(this);
_GroupList.Remove(group);
}
}
//添加组到服务器
public void AddGroup(SHHOPCGroup group)
{
if (_GroupList.Contains(group) == false)
{
_GroupList.Add(group);
group.AttachToServer(this);
}
}
//附加子项到组执行的操作
internal void AttachToGroup(SHHOPCGroup group)
{
try
{
this.Group = group;
if (group.OPCGroup != null)//OPC组已经连接上了
{
_OPCItem = group.OPCGroup.OPCItems.AddItem(this.OPCItemID, this.GetHashCode());
}
}
catch
{ }
}
internal void DetachFromGroup(SHHOPCGroup group)
{
try
{
if (_OPCItem != null)
{
int[] arrayHandle = new int[1] {
_OPCItem.ServerHandle
};
Array arrayError;
group.OPCGroup.OPCItems.Remove(1, arrayHandle, out arrayError);
}
this.Group = null;
_OPCItem = null;
}
catch
{ }
}
