protected override IEnumerable <string> GetCollapsedFolders()
{
return(folders.Where(pair => pair.Value.IsCollapsed).Select(pair => pair.Key));
}
public override IEnumerable <string> GetCheckedFiles()
{
return(checkedFileNodes.Where(pair => pair.Value.CheckState == CheckState.Checked).Select(pair => pair.Key));
}
public void Load(IEnumerable <ITreeData> data, string title)
{
var collapsedFoldersEnumerable = folders.Where(pair => pair.Value.IsCollapsed).Select(pair => pair.Key);
var collapsedFolders = new HashSet <string>(collapsedFoldersEnumerable);
string selectedNodeName = null;
if (SelectedNode != null)
{
selectedNodeName = SelectedNode.Name;
SelectedNode = null;
}
folders.Clear();
nodes.Clear();
var titleNode = new TreeNode()
{
Name = title,
Label = title,
Level = 0,
IsFolder = true
};
SetNodeIcon(titleNode);
nodes.Add(titleNode);
var hideChildren = false;
var hideChildrenBelowLevel = 0;
foreach (var d in data)
{
var parts = d.Name.Split('/');
for (int i = 0; i < parts.Length; i++)
{
var label = parts[i];
var level = i + 1;
var name = String.Join("/", parts, 0, level);
var isFolder = i < parts.Length - 1;
var alreadyExists = folders.ContainsKey(name);
if (!alreadyExists)
{
var isActive = false;
if (name == d.Name)
{
isActive = d.IsActive;
}
var node = new TreeNode
{
Name = name,
IsActive = isActive,
Label = label,
Level = level,
IsFolder = isFolder
};
if (selectedNodeName != null && name == selectedNodeName)
{
SelectedNode = node;
}
if (node.IsActive)
{
activeNode = node;
}
if (hideChildren)
{
if (level <= hideChildrenBelowLevel)
{
hideChildren = false;
}
else
{
node.IsHidden = true;
}
}
SetNodeIcon(node);
nodes.Add(node);
if (isFolder)
{
if (collapsedFolders.Contains(name))
{
node.IsCollapsed = true;
if (!hideChildren)
{
hideChildren = true;
hideChildrenBelowLevel = level;
}
}
folders.Add(name, node);
}
}
}
}
}
