public bool AddItems(List <Tag> biList)
{
try
{
#region 入的标签集合为空时，直接返回
if (biList.Count == 0)
{
return(false);
}
#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(false);
}
#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].DataType = Enum.GetName(typeof(OpcTypes.CanonicalDataTypesForDa), 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
return(true);
}
catch (Exception e)
{
throw;
}
}
/// <summary>
/// Adresleri Ekler...
/// </summary>
public void OPCAddItems(string groupname)
{
SetConnectedGroup(groupname);
if ((ConnectedGroup != null))
{
List <OpcItems> grupitems = OPCItem.FindAll(p => p == null || p.OpcGroupName == groupname || p.OpcGroupName == "lks" + groupname);
try
{
int ItemCount = grupitems.Count - 1;
//' Array for potential error returns. This example doesn't
//' check them but yours should ultimately.
System.Array AddItemServerErrors;
if (OPCItemIDs.Count == 0)
{
OPCItemIDs.Add(null);
OPCItemIsArray.Add(0);
ClientHandles.Add(0);
}
//' Load the request OPC Item names and build the ClientHandles list
for (int i = 1; i < grupitems.Count; i++)
{
//' Load the name of then item to be added to this group. You can add
//' as many items as you want to the group in a single call by building these
//' arrays as needed.
List <OpcItems> item = grupitems.FindAll(p => p != null && p.GrupAdresNo == i);
OPCItemIDs.Add(item[0].OPCItemName);
//' ASSume all aren't an array. If it is, this holds size and is set in
//' Data change event.
OPCItemIsArray.Add(0);
//' The client handles are given to the OPC Server for each item you intend
//' to add to the group. The OPC Server will uses these client handles
//' by returning them to you in the 'DataChange' event. You can use the
//' client handles as a key to linking each valued returned from the Server
//' back to some element in your application. In this example we are simply
//' placing the Index number of each control that will be used to display
//' data for the item. In your application the ClientHandle value you use
//' can by whatever you need to best fit your program. You will see how
//' these client handles are used in the 'DataChange' event handler.
ClientHandles.Add(i);
//' Make the Items active start control Active, for the demo I want all items to start active
//' Your application may need to start the items as inactive.
item[0].OPCItemActiveState = true;
}
ConnectedGroup.OPCItems.DefaultIsActive = true;
System.Array clienthandles = ClientHandles.ToArray <int>();
System.Array oPCitemIDs = OPCItemIDs.ToArray <string>();
ConnectedGroup.OPCItems.AddItems(ItemCount, ref oPCitemIDs, ref clienthandles, out ItemServerHandles, out AddItemServerErrors);
bool AnItemIsGood;
AnItemIsGood = false;
for (int i = 1; i < grupitems.Count; i++)
{
List <OpcItems> item = grupitems.FindAll(p => p != null && p.GrupAdresNo == i);
if ((int)AddItemServerErrors.GetValue(i) == 0) //'If the item was added successfully then allow it to be used.
{
AnItemIsGood = true;
}
else
{
ItemServerHandles.SetValue(0, i); // ' If the handle was bad mark it as empty
item[0].OPCItemValue = "OPC Add Item Fail";
}
}
for (int i = 1; i < grupitems.Count; i++)
{
List <OpcItems> item = grupitems.FindAll(p => p != null && p.GrupAdresNo == i);
if ((int)AddItemServerErrors.GetValue(i) == 0) //'If the item was added successfully then allow it to be used.
{
AnItemIsGood = true;
}
else
{
ItemServerHandles.SetValue(0, i); // ' If the handle was bad mark it as empty
item[0].OPCItemValue = "OPC Add Item Fail";
}
}
//' Disable the Add OPC item button if any item in the list was good
Object Response;
//if (!AnItemIsGood)
// MessageBox.Show("The OPC Server has not accepted any of the item you have entered, check your item names and try again.", "OPC Add Item", MessageBoxButtons.OK);
}
catch (Exception ex)
{
MessageBox.Show("OPC server add items failed with exception: " + ex.Message, "SimpleOPCInterface Exception", MessageBoxButtons.OK);
}
}
}