详解asp.net读取磁盘文件、删除_.Net教程

2024-07-10 12:51:54

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推荐：浅析asp.net的web打印功能简单实现
具体实现如下： 1. OBJECTid=WebBrowserclassid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2height=0width=0 /OBJECT pinputtype=buttonvalue=打印预览onclick=document.all.WebBrowser.ExecWB(7,1);//p 将以上代码贴入aspx文件中，点击”打印

    protected void ReadFile()     //读取文件夹，文件
    {
        string savePath = @"common";
        StringBuilder outstring = new StringBuilder();
        string absSavePath = Server.MapPath(savePath);
        string[] Directorys = Directory.GetDirectories(absSavePath + @"/" + Page.User.Identity.Name);
        //for (int i = 0; i < Directorys.Length; i++)
        //{
        //    Response.Write(Directorys[i] + " <br/ >");
        //}
        //Response.Write("Directorys count：" + Directorys.Length + "个  <br/ >--------- <br >");
        string[] Files = Directory.GetFiles(absSavePath + @"" + Page.User.Identity.Name, "*");
        outstring.Append("<ul>");
        for (int i = 0; i < Files.Length; i++)
        {
            if (Path.GetFileName(Files[i]) != "Thumbs.db")
            {
                outstring.Append("<li><img src=/"common/" + Path.GetFileName(Files[i]) + "/" style=/"width:100px;height:100px;/" /><br/><input type=/"checkbox/" value=/"common/" + Path.GetFileName(Files[i]) + "/" name=/"picname/" onclick=/"getpicid();/" id=/"imgid" + i.ToString() + "/" /><label for=/"imgid" + i.ToString() + "/">" + Path.GetFileName(Files[i]) + "</label></li>");
            }
        }
        outstring.Append("</ul>");
        Response.Write(outstring.ToString());
    }

//删除文件
        string[] strpicname = Request["imgids"].Split(new char[] { ’,’ });
        for (int i = 0; i < strpicname.Length; i++)
        {
            File.Delete(Server.MapPath(strpicname[i].ToString()));
        }
//循环遍历复选框
<script language="javascript" type="text/javascript" defer="defer">
    var imgnum = document.getElementsByTagName("input");
    var imgids = "";
    function getpicid()
    {
        document.getElementById("hidimgid").value = "";
        for (var i=0;i<imgnum.length;i++)
        {
            if ( imgnum[i].type == "checkbox" && imgnum[i].name == "picname" && imgnum[i].checked)
            {
                imgids += imgids == "" ? imgnum[i].value : "," + imgnum[i].value;
            }
        }
        document.getElementById("hidimgid").value = imgids;
    }
    </script>

分享：解读Web.config简要配置说明
?xmlversion=1.0standalone=yes? configurationxmlns=http://schemas.microsoft.com/.NetConfiguration/v2.0 !--配置全局变量-- appSettings addkey=examstrvalue=server=.;database=myweb_exam_db;uid=exam_login;pwd=xxd_examadmin/ /appSettings

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