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。该如何解决
日期：2014-05-19 浏览次数：20418 次
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();
}
------解决方案--------------------
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 ", &q
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();
}
------解决方案--------------------
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 ", &q
免责声明： 本文仅代表作者个人观点，与爱易网无关。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，请读者仅作参考，并请自行核实相关内容。
