Beispiel #1
0
        public bool AddItem(Tag bi)
        {
            try
            {
                #region *********集合已包含此Tag,则退出*************************
                foreach (Tag item in this.Tags)
                {
                    if (item.TagName == bi.TagName)
                    {
                        MessageBox.Show("Tag重复:在在重复的Tag点", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                        return(false);
                    }
                }
                #endregion

                OPCItems        items = this.OPCGroup.OPCItems;//根据指定的组类别,取出组下的标签集合
                Func <Tag, int> f     = p => { if (p != null)
                                               {
                                                   return(p.ExtraAs <DaExtra>().ItmHandleClient + 1);
                                               }
                                               return(0); };
                int itmHandleBegin = f(Tags.LastOrDefault());//itmHandleBegin的逻辑为最后一个标签itmHandle值+1
                //关键,此步骤将标签添加入OPCclient的监听列表中
                OPCItem ki = items.AddItem(bi.OpcTagName, itmHandleBegin);
                bi.ExtraAs <DaExtra>().ItmHandleClient = itmHandleBegin;
                //bi.DataTypeName = DaOpcTypes.GetEnumTypeRemarkByValue(ki.CanonicalDataType);
                bi.ExtraAs <DaExtra>().ItmHandleServer = ki.ServerHandle;
                Tags.Add((Tag)(Object)bi);
                AddItemsComplete?.Invoke(this);
                return(true);
            }
            catch (Exception)
            {
                throw;
            }
        }
Beispiel #2
0
        public IGroup AddItems(List <Tag> biList)
        {
            try
            {
                #region  入的标签集合为空时,直接返回
                if (biList.Count == 0)
                {
                    return(this);
                }
                #endregion
                #region 当前标签集合已包含此Tag,则退出
                if (Tags.Count(p => biList.Select(b => b.TagName).Contains(p.TagName)) != 0)
                {
                    MessageBox.Show("Tag重复:在在重复的Tag点", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                    return(this);
                }


                #endregion

                //根据组名,取出组下的子集合
                OPCItems        items = this.OPCGroup.OPCItems;
                int             itmHandleBegin;
                int             NUMITEMS;
                Array           OPCItemIDs;
                Array           ItemClientHandles;
                Array           ItemServerHandles;
                Array           AddItemServerErrors;
                Func <Tag, int> f = (p => p != null ? p.ExtraAs <DaExtra>().ItmHandleClient : 0);

                itmHandleBegin      = f(Tags.LastOrDefault()); //itmHandleBegin的逻辑为最后一个标签itmHandle值
                NUMITEMS            = biList.Count() + 1;      //OPCitem集合元素是以1为数组的基数,例:如果新增5个标签的话,就需要创建一个长度为6的标签,
                OPCItemIDs          = Array.CreateInstance(typeof(string), NUMITEMS);
                ItemClientHandles   = Array.CreateInstance(typeof(int), NUMITEMS);
                ItemServerHandles   = Array.CreateInstance(typeof(int), NUMITEMS);
                AddItemServerErrors = default(System.Array);

                //标签赋值后加入daTags
                for (int i = 1; i < NUMITEMS; i++)
                {
                    OPCItemIDs.SetValue(biList[i - 1].OpcTagName, i);
                    ItemClientHandles.SetValue(itmHandleBegin + i, i);
                    biList[i - 1].ExtraAs <DaExtra>().ItmHandleClient = itmHandleBegin + i;
                    Tags.Add((Tag)(Object)biList[i - 1]);
                }

                //关键,此步骤将标签添加入OPCclient的监听列表中
                items.AddItems(biList.Count, ref OPCItemIDs, ref ItemClientHandles, out ItemServerHandles, out AddItemServerErrors);

                #region ***********判断tag点是否正常监听************
                for (short i = 1; i < NUMITEMS; i++)
                {
                    if ((int)AddItemServerErrors.GetValue(i) == 0) //If the item was added successfully then allow it to be used.
                    {
                        Tags[i - 1].Message = "OPC Add Item Successful";
                        Tags[i - 1].Enabled = true;

                        //设置标签的数据类型及ServerHandle
                        OPCItem ki = items.GetOPCItem((int)ItemServerHandles.GetValue(i));
                        //biList[i - 1].DataTypeName = DaOpcTypes.GetEnumTypeRemarkByValue(ki.CanonicalDataType);
                        biList[i - 1].DataType = DaOpcTypes.GetEnumTypeByValue(ki.CanonicalDataType);
                        biList[i - 1].ExtraAs <DaExtra>().ItmHandleServer = (int)ItemServerHandles.GetValue(i);
                    }
                    else
                    {
                        Tags[i - 1].Message = "OPC Add Item Fail";
                        Tags[i - 1].Enabled = false;
                        //ItemServerHandles(i) = 0; // If the handle was bad mark it as empty
                        //OPCItemValue(i).Enabled = false;
                        //OPCItemValue(i).Text = "OPC Add Item Fail";
                    }
                }
                #endregion
                AddItemsComplete?.Invoke(this);
                return(this);
            }
            catch (Exception e)
            {
                throw;
            }
        }