//此方法通过OPCBrowser将数据结节加载到TreeView中.
private bool LoadDataToTree(TreeNode node, string nodeName)
{
TreeNode childNode = null;
OPCGroup group = null;
try
{
this.opcBrowser.ShowBranches();
int count = this.opcBrowser.Count;
if (count == 0)
{
this.opcBrowser.ShowLeafs(true);
group = this.kepServer.OPCGroups.Add(nodeName);
group.UpdateRate = 1000;
group.IsSubscribed = true;
group.IsActive = true;
node.Tag = group;
this.groupMap.Add(nodeName, group);
}
HashSet <string> itemList = new HashSet <string>();
foreach (object turn in this.opcBrowser)
{
string path = nodeName;
string name = turn.ToString();
if (count != 0)
{
childNode = node.Nodes.Add(name);
if (path != "")
{
path += ".";
}
path += name;
this.opcBrowser.MoveDown(name);
LoadDataToTree(childNode, path);
this.opcBrowser.MoveUp();
}
else
{
OPCItem opcItem = group.OPCItems.AddItem(name, 0);
itemList.Add(name);
if (!this.itemMap.ContainsKey(opcItem.GetHashCode()))
{
this.itemMap.Add(opcItem.GetHashCode(), opcItem);
}
}
}
this.opcBrowser.ShowLeafs(false);
List <string> leafItems = new List <string>();
foreach (object t in this.opcBrowser)
{
string itemId = this.opcBrowser.GetItemID(t.ToString());
if (itemList.Contains(itemId))
{
continue;
}
leafItems.Add(itemId);
}
if (leafItems.Count != 0)
{
group = this.kepServer.OPCGroups.Add(nodeName);
group.UpdateRate = 1000;
group.IsSubscribed = true;
group.IsActive = true;
this.groupMap.Add(nodeName, group);
node.Tag = group;
foreach (string t in leafItems)
{
OPCItem opcItem = group.OPCItems.AddItem(t, 0);
//childNode = node.Nodes.Add(t.ToString());
if (!this.itemMap.ContainsKey(opcItem.GetHashCode()))
{
this.itemMap.Add(opcItem.GetHashCode(), opcItem);
}
}
}
}
catch (Exception ex)
{
LogHelper.Error(ex);
}
return(true);
}
