<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Data" %>
<%@ page Language="C#" debug="true" %>
<html>
<head>
<title>一个HTMLINPUTFILE实现多文件上传示例</title>
<script language="C#" runat="server">
public static DataTable upfiles;
public void CreatTable()
{
upfiles = new DataTable("upfile");
DataColumn[] keys= new DataColumn[1];
keys[0]= upfiles.Columns.Add("filename",typeof(string));
keys[0].AllowDBNull=false;
upfiles.PrimaryKey= keys;
upfiles.Columns.Add("filelength",typeof(Int32));
upfiles.Columns.Add("filestream",typeof(Stream));
Span1.InnerHtml ="";
fcount.Text="";
fname.Text="";
fsize.Text="";
}
public void AddFile(object sender , EventArgs E)
{
if (upfiles==null){
CreatTable();
}
if(myFile.PostedFile.FileName!="")
{
string nam = myFile.PostedFile.FileName ;
int i= nam.LastIndexOf("\\") ;
string filename =nam.Substring(i+1) ;
if(upfiles.Rows.Find(filename)==null)
{
int filelen=myFile.PostedFile.ContentLength;
Stream fstream=myFile.PostedFile.InputStream;
DataRow dr=upfiles.NewRow();
dr[0]=filename;//获取文件名
dr[1]=filelen;//文件长度
dr[2]=fstream;//文件流
upfiles.Rows.Add(dr);//增加
ArrayList dc=new ArrayList();
for(int j=0;j<upfiles.Rows.Count;j++)
{
DataRow df=upfiles.Rows[j];
dc.Add(df[0].ToString());
}
files.DataSource=dc;
files.DataBind();
// fname.Text+=" "+filename+"<br/>";
// fcount.Text=upfiles.Rows.Count.ToString();
// fsize.Text+=filelen.ToString()+"<br/>";
}
}
else{
Span1.InnerHtml ="<font color=red>请选择文件！</font>";
}
}
public void RemoveFile(object sender , EventArgs E)
{
if(files.SelectedItem.Value!=null){
string fname=files.SelectedItem.Value;
DataRow foundRow= upfiles.Rows.Find(fname);
if(foundRow!=null)
upfiles.Rows.Remove(foundRow);
ArrayList dc=new ArrayList();
for(int j=0;j<upfiles.Rows.Count;j++)
{
DataRow df=upfiles.Rows[j];
dc.Add(df[0].ToString());
}
files.DataSource=dc;
files.DataBind();
}
else{
Span1.InnerHtml ="<font color=red>请选择文件！</font>";
}
}
public void UploadFile(object sender , EventArgs E)
{
fcount.Text=upfiles.Rows.Count.ToString();
if(upfiles.Rows.Count>0)
{
fname.Text="";
fsize.Text="";
for(int j=0;j<upfiles.Rows.Count;j++)
{
DataRow dr=upfiles.Rows[j];
string topath=Server.MapPath(".\\"+dr[0]);
int FileLen=Convert.ToInt32(dr[1]);
byte[] input = new byte[FileLen];
((System.IO.Stream)dr[2]).Read(input, 0, FileLen);
FileStream fw = new FileStream(topath,FileMode.Create,FileAccess.Write);
fw.Write(input,0,FileLen);
fw.Close();
fname.Text+=" "+dr[0].ToString()+"<br/>";
fsize.Text+=" "+dr[1].ToString()+"<br/>";
Span1.InnerHtml +="<font color=Blue>文件"+(j+1).ToString()+"上传成功！<br/></font>";
}
}
upfiles=null;
}
</script>
</head>
<body>
<center><br/><br/>
<h3> 一个HTMLINPUTFILE实现多文件同时上传示例 </h3>
<form id="uploderform" method="post" action="upload.aspx" enctype="multipart/form-data" runat="server" >
<table border="1" cellspacing="0" cellpadding="0" >
<tr><td> 请选择上传文件
<input type="file" id="myFile" MaxLength="50" Size="40" runat="server" >
</td><td><input type="button" value="添加到列表" OnServerClick="AddFile" runat="server" ></td></tr>
<tr><td width=250 align=center>已选择的上传文件列表<br/>
<asp:DropDownList id="files" runat="server"></asp:DropDownList>
</td>
<td align=center><input type="button" value="移走文件" OnServerClick="RemoveFile" runat="server" ><br/>
</td></tr>
<tr><td colspan=2 align=cneter >注意：上传文件大小限制在XXM以下！
<input type="button" value="上传全部文件" OnServerClick="UploadFile" runat="server" >
</td></tr>
</table>
</form>
<br/>
<br/>
<table border="1" cellspacing="0">
<tr><td td colspan=2 align=center><b>多文件上传情况</b></td>
</tr>
<tr><td colspan=2 align=center><b><span id="Span1" runat="server" />
</b></td><tr>
</tr>
<tr>
<td>文件个数 :</td>
<td><asp:label id="fcount" text="" runat="server" /></td></tr>
<tr>
<td>文件名称 :</td>
<td><asp:label id="fname" text="" runat="server" /></td></tr>
<tr>
<td>文件类型 :</td>
<td><asp:label id="fenc" runat="server" /></td></tr>
<tr>
<td>文件大小 :(in bytes)</td>
<td><asp:label id="fsize" runat="server" /></td></tr>
</table>
<br/>
<br/>
<br/>
<h5><a href="http://www.eq-hi.ac.cn/">lzx制作</a></h5>
</center>
</body>
</html>
