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DataGrid中使用链接下载当下载文件是

发布时间: 2012-02-21 16:26:23 作者: rapoo

DataGrid中使用链接下载,当下载文件是IE能直接读的,要强制下载,求一方法,C#代码。
描述:
C:\Inetpub\wwwroot\mdown\aa\ 目录下有2个文件,(.ppt文件 ,xml文件各一)
将这2文件名显示在DataGrid网格中,并将文件名做成下载链接
当访问.aspx文件(C:\Inetpub\wwwroot\mdown 目录下)能通过文件名链接下载,对于IE可读的xml,强制下载而不显示

问题:
DataGrid链接中的xml文件怎么不读取而强制下载(注:按纽事件下的对xml文件强制下载我知道,但DataGrid链接的强制下载的代码该写在那里呢?)

附代码:
WebForm1.apsx:

<%@ Page language= "c# " Codebehind= "WebForm1.aspx.cs " AutoEventWireup= "false " Inherits= "mdown.WebForm1 " %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN " >
<HTML>
<HEAD>
<title> WebForm1 </title>
<meta name= "GENERATOR " Content= "Microsoft Visual Studio .NET 7.1 ">
<meta name= "CODE_LANGUAGE " Content= "C# ">
<meta name= "vs_defaultClientScript " content= "JavaScript ">
<meta name= "vs_targetSchema " content= "http://schemas.microsoft.com/intellisense/ie5 ">
</HEAD>
<body MS_POSITIONING= "GridLayout ">
<form id= "Form1 " method= "post " runat= "server ">
<asp:datagrid id= "DataGrid1 " style= "Z-INDEX: 101; LEFT: 56px; POSITION: absolute; TOP: 56px " runat= "server "
Width= "96px " Height= "160px " AutoGenerateColumns= "False ">
<Columns>
<asp:HyperLinkColumn DataTextField= "name " DataNavigateUrlField= "name " DataNavigateUrlFormatString= "aa/{0} "> </asp:HyperLinkColumn>
</Columns>
</asp:datagrid>
</form>
</body>
</HTML>


WebForm1.cs

private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面

// 在此处放置用户代码以初始化页面

System.IO.DirectoryInfo dinfo = new DirectoryInfo(Server.MapPath( "/mdown/aa/ "));
System.IO.FileInfo[] fileinfos = dinfo.GetFiles();


DataTable dt = new DataTable();
dt.Columns.Add( "name ");

foreach(FileInfo fi in fileinfos)
{
System.IO.FileInfo fileinfo= fi;

DataRow dr = dt.NewRow();
dr[ "name "] = fileinfo.FullName.Substring(fileinfo.FullName.LastIndexOf( "\\ ") + 1);
dt.Rows.Add(dr);

}

DataGrid1.DataSource = dt.DefaultView;
DataGrid1.DataBind();


}


[解决办法]
用流进行下载
例:
System.IO.FileInfo file = new System.IO.FileInfo( "F:\\mp3\\mp3\\别哭我最爱的人.mp3 ");
Response.Clear();
Response.ClearHeaders();
Response.Buffer = false;
Response.Charset= "GB2312 ";
Response.ContentEncoding=System.Text.Encoding.UTF8;
Response.ContentType = "application/octet-stream ";

Response.AddHeader( "Content-Disposition ", "attachment; filename= "+Server.UrlEncode( "别哭我最爱的人.mp3 "));


Response.AddHeader( "Content-Length ", file.Length.ToString());


Response.WriteFile(file.FullName);
Response.Flush();
Response.End();

你修改一下就可以用了
[解决办法]
帮顶,我也想知道有什么方法
[解决办法]
绑定时加个函数处理咯, 给你说个类似的
protected string Query(object o)
{
string temp = "../Anyone/Topic.aspx?ClassId= " + Request.QueryString[ "ClassId "] + "&TopicId= " + o.ToString();
return temp;

}

页面端是
<ItemTemplate>
<asp:HyperLink ID= "HyperLink1 " runat= "server " NavigateUrl= ' <%# Query(Eval( "T_id ", "{0} ") ) %> '
Target= "_blank " Text= ' <%# Eval( "T_title ") %> '> </asp:HyperLink>
</ItemTemplate>


[解决办法]
然后把前面说的代码加到那个函数里
[解决办法]
帮顶
[解决办法]
在ItemCreated事件里找到项加函数

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