动态添加到表单的input 在表单提交到ashx文件后不能获取提交的值？
0
[待解决问题]
如题====
代码如下(所有代码)：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="FileUpload.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<link href="lib/ligerUI/skins/Silvery/css/ligerui-all.css" rel="stylesheet" type="text/css" />
<title>文件上传</title>
<script language="javascript" type="text/javascript">
var flag=0;//是否有文件
var count=1;
var idd=1;
var filename="";
function GetQueryString(name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)","i");
var r = window.location.search.substr(1).match(reg);
if (r!=null) return unescape(r[2]); return null;
}
function check(id)
{
if(document.getElementById(id).value=="")
{
document.getElementById("Label1").style.display="block";
$("idBtnupload").disabled = $("idBtndel").disabled=true;
}
else
{
document.getElementById("Label1").style.display="none";
if(flag=="1")
{
$("idBtnupload").disabled = $("idBtndel").disabled=false;
}
else
{
$("idBtnupload").disabled = $("idBtndel").disabled=true;
}
}
}
</script>
</head>
<body>
<style>
.fu_list {
width:600px;
background:#ebebeb;
font-size:12px;
}
.fu_list td {
padding:5px;
line-height:20px;
background-color:#fff;
}
.fu_list table {
width:100%;
border:1px solid #ebebeb;
}
.fu_list thead td {
background-color:#f4f4f4;
}
.fu_list b {
font-size:14px;
}
/*file容器样式*/
a.files {
width:90px;
height:30px;
overflow:hidden;
display:block;
border:1px solid #BEBEBE;
background:url(img/fu_btn.gif) left top no-repeat;
text-decoration:none;
}
a.files:hover {
background-color:#FFFFEE;
background-position:0 -30px;
}
/*file设为透明，并覆盖整个触发面*/
a.files input {
margin-left:-350px;
font-size:30px;
cursor:pointer;
filter:alpha(opacity=0);
opacity:0;
}
/*取消点击时的虚线框*/
a.files, a.files input {
outline:none;/*ff*/
hide-focus:expression(this.hideFocus=true);/*ie*/
}
</style>
<style type="text/css">
.l-table-edit {}
.l-table-edit-td{ padding:4px;}
.l-button-submit{width:60px; float:left; margin-left:10px}
</style>
<form id="uploadForm" runat="server" action="File.ashx" method="get">
<table border="0" cellspacing="1" class="fu_list" align="center">
<thead>
<tr>
<td colspan="2"><b>上传文件</b></td>
</tr>
</thead>
<tbody>
<tr>
<td align="right" width="15%" style="line-height:35px;">添加文件：</td>
<td><a href="javascript:void(0);" class="files" id="idFile"></a> <img id="idProcess" style="display:none;" src="img/loading.gif" /></td>
</tr>
<tr>
<td colspan="2"><table border="0" cellspacing="0">
<thead>
<tr>
<td>文件路径</td>
<td width="100"></td>
<td width="100"></td>
</tr>
</thead>
<tbody id="idFileList">
</tbody>
</table></td>
</tr>
<tr><td colspan="2" style="color:gray"><asp:Label ID="Label1" runat="server" Text="所有文件说明都不能为空" ForeColor="Red" style="display:none" ></asp:Label><input id="oid" name="oid" type="hidden" runat="server"/></td></tr>
<tr>
<td colspan="2" style="color:gray">温馨提示：最多可同时上传 <b id="idLimit"></b> 个文件。 </td>
</tr>
<tr>
<td colspan="2" align="center" id="idMsg">
<input type="hidden" name="fullpath" id="fullpath" runat="server"/>
<input type="hidden" name="realname" id="realname" runat="server"/>
<input type="button" value="开始上传" id="idBtnupload" class="l-button l-button-submit" disabled="disabled"/>
<input type="button" value="全部取消" class="l-button l-button-submit" id="idBtndel" disabled="disabled" />
</td>
</tr>
</tbody>
</table>
</form>
<script src="lib/jquery/jquery-1.3.2.min.js" type="text/javascript"></script>
<script src="lib/ligerUI/js/plugins/ligerDrag.js" type="text/javascript"></script>
<script src="lib/ligerUI/js/plugins/ligerDialog.js" type="text/javascript"></script>
<script type="text/javascript">
function getFileName(path){
var pos1 = path.lastIndexOf('/');
var pos2 = path.lastIndexOf('\\');
var pos = Math.max(pos1, pos2)
if( pos<0 )
return path;
else
return path.substring(pos+1);
}
var isIE = (document.all) ? true : false;
var $ = function (id) {
return "string" == typeof id ? document.getElementById(id) : id;
};
var Class = {
create: function() {
return function() {
this.initialize.apply(this, arguments);
}
}
}
var Extend = function(destination, source) {
for (var property in source) {
destination[property] = source[property];
}
}
var Bind = function(object, fun) {
return function() {
return fun.apply(object, arguments);
}
}
var Each = function(list, fun){
for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
};
//文件上传类
var FileUpload = Class.create();
FileUpload.prototype = {
//表单对象，文件控件存放空间
initialize: function(form, folder, options) {
this.Form = $(form);//表单
this.Folder = $(folder);//文件控件存放空间
this.Files = [];//文件集合
this.SetOptions(options);
this.FileName = this.options.FileName;
this._FrameName = this.options.FrameName;
this.Limit = this.options.Limit;
this.Distinct = !!this.options.Distinct;
this.ExtIn = this.options.ExtIn;
this.ExtOut = this.options.ExtOut;
this.onIniFile = this.options.onIniFile;
this.onEmpty = this.options.onEmpty;
this.onNotExtIn = this.options.onNotExtIn;
this.onExtOut = this.options.onExtOut;
this.onLimite = this.options.onLimite;
this.onSame = this.options.onSame;
this.onFail = this.options.onFail;
this.onIni = this.options.onIni;
if(!this._FrameName){
//为每个实例创建不同的iframe
this._FrameName = "uploadFrame_" + Math.floor(Math.random() * 1000);
//ie不能修改iframe的name
var oFrame = isIE ? document.createElement("<iframe name=\"" + this._FrameName + "\">") : document.createElement("iframe");
//为ff设置name
oFrame.name = this._FrameName;
oFrame.style.display = "none";
//在ie文档未加载完用appendChild会报错
document.body.insertBefore(oFrame, document.body.childNodes[0]);
}
//设置form属性，关键是target要指向iframe
this.Form.target = this._FrameName;
this.Form.method = "post";
//注意ie的form没有enctype属性，要用encoding
this.Form.encoding = "multipart/form-data";
//整理一次
this.Ini();
},
//设置默认属性
SetOptions: function(options) {
this.options = {//默认值
FileName: "",//文件上传控件的name，配合后台使用
FrameName: "",//iframe的name，要自定义iframe的话这里设置name
onIniFile: function(){},//整理文件时执行(其中参数是file对象)
onEmpty: function(){},//文件空值时执行
Limit: 0,//文件数限制，0为不限制
onLimite: function(){},//超过文件数限制时执行
Distinct: true,//是否不允许相同文件
onSame: function(){},//有相同文件时执行
ExtIn: [],//允许后缀名
onNotExtIn: function(){},//不是允许后缀名时执行
ExtOut: [],//禁止后缀名，当设置了ExtIn则ExtOut无效
onExtOut: function(){},//是禁止后缀名时执行
onFail: function(){},//文件不通过检测时执行(其中参数是file对象)
onIni: function(){}//重置时执行
};
Extend(this.options, options || {});
},
//整理空间
Ini: function() {
//整理文件集合
this.Files = [];
//整理文件空间，把有值的file放入文件集合
Each(this.Folder.getElementsByTagName("input"), Bind(this, function(o){
if(o.type == "file"){ o.value && this.Files.push(o); this.onIniFile(o); }
}))
//插入一个新的file
var file = document.createElement("input");
file.name = this.FileName; file.type = "file"; file.onchange = Bind(this, function(){ this.Check(file); this.Ini(); });
this.Folder.appendChild(file);
//执行附加程序
this.onIni();
},
//检测file对象
Check: function(file) {
//检测变量
var bCheck = true;
//空值、文件数限制、后缀名、相同文件检测
if(!file.value){
bCheck = false; this.onEmpty();
} else if(this.Limit && this.Files.length >= this.Limit){
bCheck = false; this.onLimite();
} else if(!!this.ExtIn.length && !RegExp("\.(" + this.ExtIn.join("|") + ")$", "i").test(file.value)){
//检测是否允许后缀名
bCheck = false; this.onNotExtIn();
} else if(!!this.ExtOut.length && RegExp("\.(" + this.ExtOut.join("|") + ")$", "i").test(file.value)) {
//检测是否禁止后缀名
bCheck = false; this.onExtOut();
} else if(!!this.Distinct) {
Each(this.Files, function(o){ if(o.value == file.value){ bCheck = false; } })
if(!bCheck){ this.onSame(); }
}
//没有通过检测
!bCheck && this.onFail(file);
},
//删除指定file
Delete: function(file) {
//移除指定file
$("idBtnupload").disabled = $("idBtndel").disabled=true;
this.Folder.removeChild(file); this.Ini();
},
//删除全部file
Clear: function() {
//清空文件空间
$("idBtnupload").disabled = $("idBtndel").disabled=true;
Each(this.Files, Bind(this, function(o){ this.Folder.removeChild(o); })); this.Ini();
}
}
var fu = new FileUpload("uploadForm", "idFile", { Limit: 3,
onIniFile: function(file){ file.value ? file.style.display = "none" : this.Folder.removeChild(file);
document.getElementById("fullpath").value=file.value;document.getElementById("realname").value=getFileName(file.value).substring(0,getFileName(file.value).indexOf("."));
document.getElementById("oid").value=GetQueryString("oid");
filename=getFileName(file.value).substring(0,getFileName(file.value).indexOf("."));//获取文件名
flag=1;document.getElementById("Label1").style.display="none";
},
onEmpty: function(){ alert("请选择一个文件"); },
onLimite: function(){ alert("超过上传限制"); },
onSame: function(){ alert("已经有相同文件");},
onNotExtIn: function(){ alert("只允许上传" + this.ExtIn.join("，") + "文件"); },
onFail: function(file){ this.Folder.removeChild(file); },
onIni: function(){
//显示文件列表
var arrRows = [];
if(this.Files.length){
var oThis = this;
idd=1;
Each(this.Files, function(o){
var a = document.createElement("a"); a.innerHTML = "取消"; a.href = "javascript:void(0);";
a.onclick = function(){ oThis.Delete(o); return false;};
var inputt= document.createElement("input");
//idd=count;
inputt.id="txt"+idd.toString();
inputt.type="text";
inputt.runat="server"
inputt.name="name"+idd.toString();
inputt.value=getFileName(o.value).substring(0,getFileName(o.value).indexOf("."));
inputt.onchange=function(){check(this.id);};
arrRows.push([o.value, a,inputt]);
idd++;
});
} else { arrRows.push(["<font color='gray'>没有添加文件</font>", " "]); }
AddList(arrRows);
//设置按钮
$("idBtnupload").disabled = $("idBtndel").disabled = this.Files.length <= 0;
}
});
$("idBtnupload").onclick = function(){
//显示文件列表
var arrRows = [];
Each(fu.Files, function(o){ arrRows.push([o.value, " "]); });
AddList(arrRows);
fu.Folder.style.display = "none";
$("idProcess").style.display = "";
$("idMsg").innerHTML = "正在添加文件，请稍候……<br />有可能因为网络问题，出现程序长时间无响应，请点击“<a href='?'><font color='red'>取消</font></a>”重新上传文件";
fu.Form.submit();
}
//用来添加文件列表的函数
function AddList(rows){
//根据数组来添加列表
var FileList = $("idFileList"), oFragment = document.createDocumentFragment();
//用文档碎片保存列表
Each(rows, function(cells){
var row = document.createElement("tr");
Each(cells, function(o){
var cell = document.createElement("td");
if(typeof o == "string"){ cell.innerHTML = o; }else{ cell.appendChild(o); }
row.appendChild(cell);
});
oFragment.appendChild(row);
})
//ie的table不支持innerHTML所以这样清空table
while(FileList.hasChildNodes()){ FileList.removeChild(FileList.firstChild); }
FileList.appendChild(oFragment);
}
$("idLimit").innerHTML = fu.Limit;
//$("idExt").innerHTML = fu.ExtIn.join("，");
$("idBtndel").onclick = function(){ fu.Clear(); }
//在后台通过window.parent来访问主页面的函数
function Finish(msg){ alert(msg);window.parent.location.reload(); }
</script>
</body>
</html>
所有回答(1)
0
<form runat="server" action="File.ashx" method="get">
首先，上传文件不能用get，要用post
其次，你这个表单是把文件提交到File.ashx文件去了，如果那个文件里获取不到，看下那个文件的代码
