从路径列表填充树视图 [英] populate treeview from a list of path

问题描述

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

解决方案

私人无效Form1_Load的（对象发件人，EventArgs的）     {         VAR路径=新的名单，其中，串＆GT;                         {                             @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 \加载项，                             @C：\ WINDOWS \ AppPatch文件，                             @C：\ WINDOWS \ AppPatch文件\ MUI，                             @C：\ WINDOWS \ Microsoft.NET \框架\ V2.0.50727 \ MUI \ 0409                         };         treeView1.PathSeparator = @\;         PopulateTreeView（为TreeView1，路径，'\\'）; } 私有静态无效PopulateTreeView（TreeView的树视图，IEnumerable的＆LT;字符串＆GT;路径，焦炭pathSeparator）     {         树节点lastNode = NULL;         串subPathAgg;         的foreach（在路径字符串路径）         {             subPathAgg =的String.Empty;             的foreach（在path.Split串子路径（pathSeparator））             {                 subPathAgg + = SUBPATH + pathSeparator;                 树节点[]节点= treeView.Nodes.Find（subPathAgg，真正的）;                 如果（nodes.Length == 0）                     如果（lastNode == NULL）                         lastNode = treeView.Nodes.Add（subPathAgg，子路径）;                     其他                         lastNode = lastNode.Nodes.Add（subPathAgg，子路径）;                 其他                     lastNode =节点[0];             }         }     }

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

C:\WINDOWS\addins
C:\WINDOWS\AppPatch
C:\WINDOWS\AppPatch\MUI
C:\WINDOWS\AppPatch\MUI\040C
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\MUI
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\MUI\0409

with an ouput like this:

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

Notice there's no 'C:\WINDOWS\Microsoft.NET' or 'C:\WINDOWS\Microsoft.NET\Framework' 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

解决方案

private void Form1_Load(object sender, EventArgs e)
    {
        var paths = new List<string>
                        {
                            @"C:\WINDOWS\AppPatch\MUI\040C",
                            @"C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727",
                            @"C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\MUI",
                            @"C:\WINDOWS\addins",
                            @"C:\WINDOWS\AppPatch",
                            @"C:\WINDOWS\AppPatch\MUI",
                            @"C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\MUI\0409"
                        };

        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];
            }
        }
    }

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