public List <String> GetLeaf(string path)
{
List <string> list = new List <string>();
Array branches = path.Substring(path.IndexOf("/") + 1, path.Length - path.IndexOf("/") - 1).Split('/');
opcBrowser.MoveTo(branches);
opcBrowser.ShowLeafs(false);
foreach (var branch in opcBrowser)
{
list.Add(branch.ToString());
}
opcBrowser.MoveToRoot();
return(list);
}
/// <summary>
/// OPCBrowser遍历组下一层节点，并构建Tree节点
/// </summary>
/// <param name="nodeId"></param>
public List <OpcNode> ShowBranches(string nodeId = "")
{
if (nodeId.IsNullOrEmpty())
{
//返回根节点，需要顺序执行下列3个函数。
oPCBrowser.MoveTo(oPCBrowser.CurrentPosition.Split('.'));
oPCBrowser.ShowLeafs(true);
oPCBrowser.MoveToRoot();
}
else
{
oPCBrowser.MoveTo(nodeId.Split('.'));
}
oPCBrowser.ShowBranches();
List <OpcNode> listNode = Task.Run(() =>
{
List <OpcNode> list = new List <OpcNode>();
foreach (object branch in oPCBrowser)
{
string key = "ClassIcon";
bool isExpand = false;
string branchNodeId = "";
//拼接nodeId
if (nodeId.IsNullOrEmpty())
{
branchNodeId = branch.ToString();
}
else
{
branchNodeId = nodeId + "." + branch.ToString();
}
oPCBrowser.MoveDown(branch.ToString());
oPCBrowser.ShowBranches();
if (oPCBrowser.Count > 0)
{
isExpand = true;
}
var child = new OpcNode(branch.ToString(), branchNodeId, key, isExpand);
list.Add(child);
oPCBrowser.MoveUp();
}
return(list);
}
).Result;
oPCBrowser.MoveToRoot();
return(listNode);
}
/// <summary>
/// 列出OPC服务器中所有节点
/// </summary>
/// <param name="oPCBrowser"></param>
private void RecurBrowse(OPCBrowser oPCBrowser)
{
ItemTreeNode.Nodes.Clear();
//建树
oPCBrowser.MoveToRoot();
TreeNode root = ItemTreeNode.Nodes.Add("Root");
BuildBranchTree(ref root, oPCBrowser);
}
public List <string> GetBranch(string position)
{
List <string> branchs = new List <string>();
string[] desName = position.ToString().Split('.');
Browser.MoveTo(desName);
Browser.ShowBranches();
IEnumerator enumerator = Browser.GetEnumerator();
//树
while (enumerator.MoveNext())
{
if (enumerator.Current != null)
{
branchs.Add(enumerator.Current.ToString());
}
}
Browser.MoveToRoot();
return(branchs);
}
/// <summary>
/// 遍历该分支节点下所有的叶节点
/// </summary>
/// <param name="node"></param>
/// <param name="oPCBrowser"></param>
private void ListLeaf(ref TreeNode node, OPCBrowser oPCBrowser)
{
if (null == node)
{
oPCBrowser.MoveToRoot();
node = ItemTreeNode.Nodes.Add("Root");
}
else
{//剔除无意义的Root根节点
List <string> BranchesList = new List <string>();
BranchesList.AddRange(node.FullPath.Split('\\'));
BranchesList.RemoveAt(0);
Array Branches = BranchesList.ToArray();
oPCBrowser.MoveTo(ref Branches);
}
oPCBrowser.ShowLeafs(false);//false不展开子集叶，true展开所有子集叶
foreach (object item in oPCBrowser)
{
node.Nodes.Add(item.ToString());
}
oPCBrowser.ShowBranches();
}