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Convert a list of paths into its corresponding hierarchical tree (in XML). Can be used for webpages.
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| // This method accepts a list of strings, where each string is a path (eg. "home/user/max/pic.png") | |
| // and creates a hierarchical XML tree out of them | |
| using System.Collections.Generic; | |
| using System.Xml.Linq; | |
| using System.Linq; | |
| public string GetTreeViewXml(List<string> paths) | |
| { | |
| XDocument doc = new XDocument(new XElement("ul")); | |
| XElement currentNode, nextNode; | |
| foreach (string path in paths) | |
| { | |
| string[] asArray = path.Split('/'); | |
| int depth = asArray.Length; | |
| currentNode = doc.Root; | |
| for (int i = 0; i < depth; i++) | |
| { | |
| string directory = asArray[i]; | |
| nextNode = (from elem in currentNode.Elements("li") where elem.Nodes().OfType<XText>().First().Value == directory select elem.Element("ul")).FirstOrDefault(); | |
| /* this foreach does the same thing as previous line | |
| foreach (var elem in currentNode.Elements("li")) | |
| { | |
| if (elem.Nodes().OfType<XText>().First().Value == directory) | |
| { | |
| nextNode = elem.Element("ul"); | |
| break; | |
| } | |
| } */ | |
| if (nextNode == null) | |
| { | |
| var newChild = new XElement("li", directory); | |
| currentNode.Add(newChild); | |
| if (i == depth - 1) | |
| break; | |
| newChild.Add(new XElement("ul")); | |
| nextNode = newChild.Element(("ul")); | |
| } | |
| currentNode = nextNode; | |
| } | |
| } | |
| return doc.ToString(); | |
| } |
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