请问怎样在Grid中显示连接？

Question

我用Gridview显示数据库中记录,但是有个字段是文件路径，我希望在表格中，文件名直接显示为连接，可以点文件直接下载，应该怎么办？

Answer 1

直接绑定<asp:BoundField DataField="FILEPATH" HeaderText="文件路径"  DataFormatString="&lt;a href='#'&gt;{0}&lt;/a&gt;">
或者在后台，组合好下载URL的字符串后，直接赋值给这个单元格也行。

Answer 2

直接绑定<asp:BoundField DataField="FILEPATH" HeaderText="文件路径"  DataFormatString="&lt;a href='#'&gt;{0}&lt;/a&gt;">
或者在后台，组合好下载URL的字符串后，直接赋值给这个单元格也行。

Answer 3

 <asp:HyperLinkField DataTextField="cTitle" HeaderText="标题" SortExpression="cTitle"
                        DataNavigateUrlFields="userial" DataNavigateUrlFormatString="~/Information/IM_ReceiveInfo.aspx?ID={0}" Target="_self">
                        <ControlStyle Width="300px" />
                    </asp:HyperLinkField>protected void GridViewInformationList_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {//标题
                string cTitle = ((HyperLink)(e.Row.Cells[1].Controls[0])).Text;                
                ((HyperLink)(e.Row.Cells[1].Controls[0])).Text = CommonBusinessService.SubStr(cTitle, 100);
                ((HyperLink)(e.Row.Cells[1].Controls[0])).ToolTip = cTitle;
                

Answer 4

可以这样用，在模板列中下面FileName是文件名，不是路径，根据实际情况填写<asp:GridView ID="GridView1" runat="server">
<Columns>
<asp:TemplateField>
   <ItemTemplate>
      <a href='download.ashx?url=<%# Server.UrlEncode(Eval("FileName").ToString()) %>' ><%#Eval("FileName") %> </a>
  </ItemTemplate>
</asp:TemplateField>
</Columns>      
</asp:GridView>
建立一个download.ashx
<%@ WebHandler Language="C#" Class="download" %>
using System;
using System.Web;
public class download : IHttpHandler {    public void ProcessRequest (HttpContext context) {
        string url = HttpContext.Current.Server.UrlDecode(context.Request.QueryString["url"]);
        downloadfile(url);
    }    public bool IsReusable {
        get {
            return false;
        }
    }
    public void downloadfile(string s_fileName)
    {
      HttpContext.Current.Response.ContentType = "application/ms-download";
      string s_path = HttpContext.Current.Server.MapPath("~/") + s_fileName; //这里根据实际路径填写
      System.IO.FileInfo file = new System.IO.FileInfo(s_path);
      HttpContext.Current.Response.Clear();
      HttpContext.Current.Response.AddHeader("Content-Type", "application/octet-stream");
      HttpContext.Current.Response.Charset = "utf-8";
      HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(file.Name, System.Text.Encoding.UTF8));
      HttpContext.Current.Response.AddHeader("Content-Length", file.Length.ToString());
      HttpContext.Current.Response.WriteFile(file.FullName);
      HttpContext.Current.Response.Flush();
      HttpContext.Current.Response.Clear();
      HttpContext.Current.Response.End();
    }
} 

Answer 5

<asp:GridView ID="GridView1" runat="server" onrowcommand="GridView1_RowCommand"> 
<Columns> 
<asp:TemplateField> 
  <ItemTemplate> 
  <asp:LinkButton ID="lnkbtnDown" runat="server" CommandName="DownLoad" 
Text='<%#Eval("文件名") %>' CommandArgument=<%#Eval("文件路径") %>></asp:LinkButton>
  </ItemTemplate> 
</asp:TemplateField> 
</Columns>      
</asp:GridView> protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "DownLoad")
            {
                HttpContext.Current.Response.ContentType = "application/ms-download";
                string strPath = HttpContext.Current.Server.MapPath("~/") + e.CommandArgument;
                System.IO.FileInfo file = new System.IO.FileInfo(strPath);
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.AddHeader("Content-Type", "application/octet-stream");
                HttpContext.Current.Response.Charset = "utf-8";
                HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(file.Name, System.Text.Encoding.UTF8));
                HttpContext.Current.Response.AddHeader("Content-Length", file.Length.ToString());
                HttpContext.Current.Response.WriteFile(file.FullName);
                HttpContext.Current.Response.Flush();
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.End();            }
        }

Answer 6

方法都没错，按照楼主说的，要先把文件名提取出来，SubString

Answer 7

在gridview中加个超链接列,在databound事件里绑定该字段

Answer 8

 8               <asp:GridView ID="GridView" runat="server" Width="100%" AutoGenerateColumns="False" AllowPaging="True" OnPageIndexChanging="GridView_PageIndexChanging" PageSize="12" >
 9                 <Columns>
10                       <asp:BoundField DataField="UserID" HeaderText="UserID" />
11                       <asp:BoundField DataField="C_Name" HeaderText="中文名字"  />
12                       <asp:BoundField DataField="E_Name" HeaderText="英文名字"  />   
13                       <asp:BoundField DataField="salary" HeaderText="薪水" DataFormatString="{0:C}"  HtmlEncode ="False"/>               
14                       <asp:HyperLinkField DataNavigateUrlFields="C_Name" DataNavigateUrlFormatString="Demo28_Url.aspx?para={0}"  DataTextField="C_Name"
15                         HeaderText="点击打开新页面" />
16                       <asp:HyperLinkField DataNavigateUrlFields="UserID" DataNavigateUrlFormatString="Demo28_Url.aspx?para={0}"  DataTextField="C_Name"
17                         HeaderText="传递不同的参数(UserID)" />
18                   </Columns>
19                   <RowStyle HorizontalAlign="Center" />  
20                   <PagerStyle HorizontalAlign="Right" />
21               </asp:GridView>
请参考GridView控件实现HyperLinkField列打开新页面