C#两种方式获取指定文件夹下所有子目录及文件

 /****************************************     * 函数名称：GetFoldAll(string Path)     * 功能说明：获取指定文件夹下所有子目录及文件(树形)     * 参 数：Path:详细路径     * 调用示列：     * string strDirlist = Server.MapPath("templates");     * this.Literal1.Text = EC.FileObj.GetFoldAll(strDirlist);     *****************************************/    /// <summary>     /// 获取指定文件夹下所有子目录及文件     /// </summary>     /// <param name="Path">详细路径</param>     public static string GetFoldAll(string Path)    {        string str = "";        DirectoryInfo thisOne = new DirectoryInfo(Path);        str = ListTreeShow(thisOne, 0, str);        return str;    }    /// <summary>     /// 获取指定文件夹下所有子目录及文件函数     /// </summary>     /// <param name="theDir">指定目录</param>     /// <param name="nLevel">默认起始值,调用时,一般为0</param>     /// <param name="Rn">用于迭加的传入值,一般为空</param>     /// <returns></returns>     public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn)//递归目录 文件     {        DirectoryInfo[] subDirectories = theDir.GetDirectories();//获得目录         foreach (DirectoryInfo dirinfo in subDirectories)        {            if (nLevel == 0)            {                Rn += "├";            }            else            {                string _s = "";                for (int i = 1; i <= nLevel; i++)                {                    _s += "│ ";                }                Rn += _s + "├";            }            Rn += "<b>" + dirinfo.Name.ToString() + "</b><br />";            FileInfo[] fileInfo = dirinfo.GetFiles(); //目录下的文件             foreach (FileInfo fInfo in fileInfo)            {                if (nLevel == 0)                {                    Rn += "│ ├";                }                else                {                    string _f = "";                    for (int i = 1; i <= nLevel; i++)                    {                        _f += "│ ";                    }                    Rn += _f + "│ ├";                }                Rn += fInfo.Name.ToString() + " <br />";            }            Rn = ListTreeShow(dirinfo, nLevel + 1, Rn);

        }        return Rn;    }

    /****************************************     * 函数名称：GetFoldAll(string Path)     * 功能说明：获取指定文件夹下所有子目录及文件(下拉框形)     * 参 数：Path:详细路径     * 调用示列：     * string strDirlist = Server.MapPath("templates");     * this.Literal2.Text = EC.FileObj.GetFoldAll(strDirlist,"tpl","");     *****************************************/    /// <summary>     /// 获取指定文件夹下所有子目录及文件(下拉框形)     /// </summary>     /// <param name="Path">详细路径</param>     ///<param name="DropName">下拉列表名称</param>     ///<param name="tplPath">默认选择模板名称</param>     public static string GetFoldAll(string Path, string DropName, string tplPath)    {        string strDrop = "<select name=\"" + DropName + "\" id=\"" + DropName + "\"><option value=\"\">--请选择详细模板--</option>";        string str = "";        DirectoryInfo thisOne = new DirectoryInfo(Path);        str = ListTreeShow(thisOne, 0, str, tplPath);        return strDrop + str + "</select>";    }    /// <summary>     /// 获取指定文件夹下所有子目录及文件函数     /// </summary>     /// <param name="theDir">指定目录</param>     /// <param name="nLevel">默认起始值,调用时,一般为0</param>     /// <param name="Rn">用于迭加的传入值,一般为空</param>     /// <param name="tplPath">默认选择模板名称</param>     /// <returns></returns>     public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn, string tplPath)//递归目录 文件     {        DirectoryInfo[] subDirectories = theDir.GetDirectories();//获得目录         foreach (DirectoryInfo dirinfo in subDirectories)        {            Rn += "<option value=\"" + dirinfo.Name.ToString() + "\"";            if (tplPath.ToLower() == dirinfo.Name.ToString().ToLower())            {                Rn += " selected ";            }            Rn += ">";            if (nLevel == 0)            {                Rn += "┣";            }            else            {                string _s = "";                for (int i = 1; i <= nLevel; i++)                {                    _s += "│ ";                }                Rn += _s + "┣";            }            Rn += "" + dirinfo.Name.ToString() + "</option>";

            FileInfo[] fileInfo = dirinfo.GetFiles(); //目录下的文件             foreach (FileInfo fInfo in fileInfo)            {                Rn += "<option value=\"" + dirinfo.Name.ToString() + "/" + fInfo.Name.ToString() + "\"";                if (tplPath.ToLower() == fInfo.Name.ToString().ToLower())                {                    Rn += " selected ";                }                Rn += ">";                if (nLevel == 0)                {                    Rn += "│ ├";                }                else                {                    string _f = "";                    for (int i = 1; i <= nLevel; i++)                    {                        _f += "│ ";                    }                    Rn += _f + "│ ├";                }                Rn += fInfo.Name.ToString() + "</option>";            }            Rn = ListTreeShow(dirinfo, nLevel + 1, Rn, tplPath);

        }        return Rn;    }

转载自： http://www.cnblogs.com/cosiray/archive/2009/08/24/1552706.html

转载于:https://www.cnblogs.com/wuhenke/archive/2009/11/05/1597013.html

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