我想从文件夹路径列表填充一个TreeView，例如：

  C： WINDOWS 加载项
C： WINDOWS  AppPatch文件
C： WINDOWS  AppPatch文件 MUI
C： WINDOWS  AppPatch文件 MUI  040C
C： WINDOWS  Microsoft.NET 框架 V2.0.50727
C： WINDOWS  Microsoft.NET 框架 V2.0.50727  MUI
C： WINDOWS  Microsoft.NET 框架 V2.0.50727  MUI  0409
 

有一个这样的输出中：

 ├───addins
├───AppPatch
│└───MUI
│└───040C
├───Microsoft.NET
│└───Framework
│└───v2.0.50727
│└───MUI
│└───0409
 

注意有没有C： WINDOWS Microsoft.NET'或'C： WINDOWS Microsoft.NET 框架在列表中。我一直在这方面的工作了差不多两天，有一个在我的code一堆错误的。希望我可以在这里得到帮助。

感谢。

埃里克

I'm trying to populate a treeview from a list of folder path, for example:

C:WINDOWSaddins
C:WINDOWSAppPatch
C:WINDOWSAppPatchMUI
C:WINDOWSAppPatchMUI40C
C:WINDOWSMicrosoft.NETFrameworkv2.0.50727
C:WINDOWSMicrosoft.NETFrameworkv2.0.50727MUI
C:WINDOWSMicrosoft.NETFrameworkv2.0.50727MUI409

with an ouput like this:

├───addins
├───AppPatch
│   └───MUI
│       └───040C
├───Microsoft.NET
│   └───Framework
│       └───v2.0.50727
│           └───MUI
│               └───0409

Notice there's no 'C:WINDOWSMicrosoft.NET' or 'C:WINDOWSMicrosoft.NETFramework' in the list. I've been working on this for almost two days and there's a bunch of bug in my code. Hope I can get help from here.

Thanks.

Eric

private void Form1_Load(object sender, EventArgs e)
    {
        var paths = new List<string>
                        {
                            @"C:WINDOWSAppPatchMUI40C",
                            @"C:WINDOWSMicrosoft.NETFrameworkv2.0.50727",
                            @"C:WINDOWSMicrosoft.NETFrameworkv2.0.50727MUI",
                            @"C:WINDOWSaddins",
                            @"C:WINDOWSAppPatch",
                            @"C:WINDOWSAppPatchMUI",
                            @"C:WINDOWSMicrosoft.NETFrameworkv2.0.50727MUI409"
                        };

        treeView1.PathSeparator = @"";

        PopulateTreeView(treeView1, paths, '\');
}


private static void PopulateTreeView(TreeView treeView, IEnumerable<string> paths, char pathSeparator)
    {
        TreeNode lastNode = null;
        string subPathAgg;
        foreach (string path in paths)
        {
            subPathAgg = string.Empty;
            foreach (string subPath in path.Split(pathSeparator))
            {
                subPathAgg += subPath + pathSeparator;
                TreeNode[] nodes = treeView.Nodes.Find(subPathAgg, true);
                if (nodes.Length == 0)
                    if (lastNode == null)
                        lastNode = treeView.Nodes.Add(subPathAgg, subPath);
                    else
                        lastNode = lastNode.Nodes.Add(subPathAgg, subPath);
                else
                    lastNode = nodes[0];
            }
        }
    }