public static void AddNodeToTree(TreeNode rootNode, string key, string value)
{
string[] directories = key.Split('_');
if (null == directories)
return;
TreeNode parentNode = rootNode;
int currentCount = 0;
string DirPath = "";
foreach (string directory in directories) {
if(directory.Length != 0)
{
if (0 == parentNode.children.Count
|| false == parentNode.children.ContainsKey (directory)) {
TreeNode childNode = null;
string val = string.Format(directories[currentCount] + System.Environment.NewLine + "uploaded on: - Owner: - Size: -");
if (currentCount == directories.Length - 1) {
DirPath = string.Format(DirPath + directory);
childNode = new TreeNode (directory, value, DirPath);
} else {
DirPath = string.Format(DirPath + directory + "_");
childNode = new TreeNode (directory, val, DirPath);
}
parentNode.children.Add (directory, childNode);
parentNode = childNode;
} else {
if (currentCount != directories.Length - 1)
{
DirPath = string.Format(DirPath + directory + "_");
}
parentNode = parentNode.children[directory];
}
currentCount++;
}
}
}
public static List<string> deleteNodeAndGetAllAffected(string key, TreeNode rootNode)
{
string[] directories = key.Split('_');
if (null == directories) {
return null;
}
TreeNode parentNode = rootNode;
TreeNode grandParent = rootNode;
foreach (string directory in directories) {
if (directory.Length != 0) {
if (false == parentNode.children.ContainsKey (key)) {
return null;
}
grandParent = parentNode;
parentNode = parentNode.children [directory];
}
}
grandParent.children.Remove (parentNode.nodeKey);
List<string> allChildren = makeCombinedInfo(parentNode,key);
if (parentNode == grandParent) {
parentNode.children.Clear ();
}
return allChildren;
}
public static List<string> makeCombinedInfo(TreeNode rootnode, string currentPath)
{
List<string> allNames = new List<string> ();
if (0 != rootnode.children.Count) {
foreach (KeyValuePair<string, TreeNode> item in rootnode.children) {
List<string> childEntries = null;
if (currentPath.Equals ("_")) {
childEntries = makeCombinedInfo (item.Value, currentPath + item.Key);
} else {
childEntries = makeCombinedInfo (item.Value, currentPath + "_" + item.Key);
}
allNames.AddRange (childEntries);
}
} else if(false == rootnode.nodeKey.Equals("_")){
allNames.Add (currentPath);
}
return allNames;
}
public static List<TreeNode> fetcAllChildren(string key, TreeNode rootNode)
{
string[] directories = key.Split('_');
if (null == directories) {
return null;
}
TreeNode parentNode = rootNode;
foreach (string directory in directories) {
if (directory.Length != 0) {
if (false == parentNode.children.ContainsKey (directory)) {
return null;
}
parentNode = parentNode.children [directory];
}
}
return parentNode.getAllChildrenInfo ();
}