Question

非常简单的概念，但我在这里引人注目。我正在尝试构建一个像Path这样的简单文件浏览器，但我似乎无法直截了当。

构建Path的方法是：

private string BuildFullPath(List<Project> Children)
    {
        string path = string.Empty;
        foreach(Project project in Children)
        {
            if (this.ParentFolder == null)
            {
                path = this.Name;
            }
            else 
            {
                path += this.ParentFolder.Name + " > " + this.Name;
            }
        }
        return path;
    }

假数据是

Projects = new ObservableCollection<Project>();
        Project parentOne = new Project("Apple", true, null);
        Project parentTwo = new Project("Samsung", true, null);
        Project parentThree = new Project("Google", true, null);
        Project parentFour = new Project("Amazon", true, null);

        Project parentOneChildOne;
        parentOneChildOne = new Project("Mac", true, parentOne);
        Project parentOneChildTwo;
        parentOneChildTwo = new Project("iPhone", true, parentOne);
        Project parentOneChildThree;
        parentOneChildThree = new Project("iPad", true, parentOne);
        parentOne.Children.Add(parentOneChildOne);
        parentOneChildOne.Children.Add(new Project("MacBook", true, parentOneChildOne));
        parentOneChildOne.Children.Add(new Project("MacBook Pro", true, parentOneChildOne));
        parentOneChildOne.Children.Add(new Project("MacBook Air", true, parentOneChildOne));
        projects.Add(parentOne);

所以MacBook Pro的路径应该是Apple - ＆gt; Mac-＆gt; MacBook - ＆gt; MacBook Pro和Mac的路径应该只是Apple - ＆gt; Mac但似乎无法动摇它。

Answer 1

沿着这条路线......

private string BuildFullPath(Project project)
    {
        string path = string.Empty;
        while(project != null) {
           if(path != string.Empty)
               path = "->" + path;
           path = project.Name + path
           project = project.ParentFolder;
        }
        return path;
    }

连接String以构建文件路径

1 个答案: