时间:2016-02-15 23:34 来源: 我爱IT技术网 作者:佚名
欢迎您访问我爱IT技术网，今天小编为你分享的编程技术是：【ASP.NET 多附件上传实现代码】，下面是详细的讲解！
ASP.NET 多附件上传实现代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<!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 runat="server">
<title></title>
<script src="MultiAffix.js" type="text/javascript"></script>
<script type="text/javascript">
var controlName=1; // This variable is for the dynamic file controls's name.
function addImg(targetElement, savestatsElement, oldimgElement) {
var browseimgElement=$get("browseimg");
var arr=browseimgElement.getElementsByTagName('input');
if (arr.length==0 || arr[0].value.length==0) {
alert('No file inputs.');
return;
}
var oldbrowser=arr[0];
var filename=getfilename(oldbrowser.value);
if (!validateimgtype(oldbrowser.value)) return;
if (!validateimgcount(targetElement, 3)) return;
var imgtitles=savestatsElement.value + oldimgElement.value;
if (validateimgexist(filename, imgtitles)) { alert('You have already added this image!'); return; }
if (oldbrowser !=undefined) {
var newbrowser=oldbrowser.cloneNode(true);
newbrowser.value='';
var newfile=document.createElement('div');
newfile.innerHTML=filename + ' ';
// Create a button element for delete the image.
var newfileimgbutton=document.createElement('img');
newfileimgbutton.src='ShoutOut_Close.gif';
newfileimgbutton.alt='Delete';
newfileimgbutton.onclick=function() {
this.parentNode.parentNode.removeChild(this.parentNode);
savestatsElement.value=updatehiddenimgs(filename, savestatsElement.value);
}
newfileimgbutton.onmouseover=function() {
this.src='ShoutOut_Close_rollover.gif';
}
newfileimgbutton.onmouseout=function() {
this.src='ShoutOut_Close.gif';
}
browseimgElement.replaceChild(newbrowser, oldbrowser);
oldbrowser.name=++controlName;
oldbrowser.style.display='none';
newfile.appendChild(oldbrowser);
newfile.appendChild(newfileimgbutton);
targetElement.appendChild(newfile);
$get("chkAgree").checked=false;
$get("btAdd").disabled=true;
savestatsElement.value +=filename + '|';
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div>
<div>
Description:
<asp:TextBox ID="tbDescription" MaxLength="2000" runat="server" TextMode="MultiLine"></asp:TextBox>
</div>
<div>
Location:
<asp:DropDownList ID="ddlLocation" runat="server">
</asp:DropDownList>
</div>
<div>
Display Posted By User:
<asp:CheckBox ID="chkPostedByUser" Checked="true" runat="server" />
</div>
<div>
Notify Shout out User:
<asp:CheckBox ID="chkNotifyUser" runat="server" />
</div>
<div>
Notify Shout out to Email:
<asp:TextBox ID="tbShoutoutToEmail" MaxLength="25" runat="server"></asp:TextBox>
</div>
<div>
Images:
<div id="saveshoutoutimgs" runat="server">
</div>
<input id="btAddImage" type="button" onclick="$get('saveshoutoutaddimgs').style.display='block';this.disabled=true;"
value="Click here to Add Image" />
</div>
<div id="saveshoutoutdetailshowimg">
<div id="saveshoutoutaddimgs" style="display: none;">
<div>
Add Image:</div>
<div id="browseimg">
<input type="file" />
</div>
<div>
Size limit of the images is 100kb. Hieght and Width of the images should not exceed
200px.</div>
<div>
<input id="chkAgree" type="checkbox" onclick="$get('btAdd').disabled=!this.checked;" />I
agree.legal signoff text to be defined.
</div>
<div>
<input id="btAdd" disabled="disabled" type="button" value="Add" runat="server" />
</div>
</div>
</div>
</div>
<asp:TextBox ID="tbImgs" runat="server" Text="|" Style="display: none;"></asp:TextBox>
<asp:TextBox ID="tbOldImgs" runat="server" Text="|" Style="display: none;"></asp:TextBox>
</form>
</body>
</html>
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