internal HdaBrowseNode Browse(string address)
{
var browseElements = _browser.Browse(new ItemIdentifier(string.IsNullOrWhiteSpace(address) ? null : address));
var root = new HdaBrowseNode {
Tag = string.IsNullOrEmpty(address) ? "" : address, Name = string.IsNullOrEmpty(address) ? "Root" : address, Root = true, HasChildren = browseElements.Length > 0
};
this.GetNodes(root, browseElements);
return(root);
}
private void GetNodes(HdaBrowseNode node, BrowseElement[] browseElements)
{
foreach (var browseElement in browseElements)
{
node.Nodes.Add(new HdaBrowseNode {
Tag = browseElement.ItemName, Item = browseElement.IsItem, Name = browseElement.Name, HasChildren = browseElement.HasChildren, OpcBrowseElement = browseElement
});
}
foreach (var hdaBrowseNode in node.Nodes.Where(x => x.HasChildren).ToList())
{
var elements = _browser.Browse(new ItemIdentifier(hdaBrowseNode.Tag));
GetNodes(hdaBrowseNode, elements);
}
}
private string GetNodes(HdaBrowseNode node, int level)
{
Func <string, int, string> repeat = (str, count) =>
{
var res = "";
for (var i = 0; i < count; i++)
{
res += str;
}
return(res);
};
var sb = new StringBuilder();
sb.AppendLine(repeat(" ", level) + $"Name: {node.Name}, Address: {node.Tag}, IsItem: {node.Item}");
foreach (var hdaBrowseNode in node.Nodes)
{
sb.Append(GetNodes(hdaBrowseNode, level + 1));
}
return(sb.ToString());
}
