c# - To download selected filename in grid view -

in below code attachment file names in session have bind documnetid,attachmentname , download.but when select 1st attachmnet filename downloading second attchmt filename.my aim download select in grid view. eg

document id  attchfilename   download 1             xxx               view 2             yyy               view    

markup

<asp:gridview id="attchdwnld" runat="server"          allowpaging="true"          allowsorting="true"         alternatingrowstyle-cssclass="alt"          autogeneratecolumns="false"         cellpadding="4"          cssclass="mgrid"          forecolor="#333333"          pagesize="10"          pagesize-mode="numericpages"         pagerstyle-cssclass="pgr"         pagerstyle-visible="true"          showfooter="false"          width="100%"         onrowcommand="attchdwnld_rowcommand" >     <columns>         <asp:templatefield headertext="documentid" itemstyle-width="200px">             <itemtemplate>                 <asp:label id="documentid" runat="server" text='<%#eval("documentid") %>'>                 </asp:label>             </itemtemplate>         </asp:templatefield>         <asp:templatefield headertext="attachmentfilename" itemstyle-width="200px">             <itemtemplate>                 <asp:label id="attachmentfilename" runat="server" text='<%#eval("attachmentfilename") %>'>                 </asp:label>             </itemtemplate>         </asp:templatefield>         <asp:templatefield headertext="download" itemstyle-width="150px">             <itemtemplate>                 <asp:linkbutton id="lnlbtnattch" runat="server" text="view" commandname="edit">                 </asp:linkbutton>             </itemtemplate>         </asp:templatefield>     </columns>     <headerstyle font-bold="true" forecolor="white" /> </asp:gridview> 

code-behind

protected void attchdwnld_rowcommand(object sender, gridviewcommandeventargs e) {     var searchdoc = (searchdoc)session["documentname"];     lblmessage.text = searchdoc.attachmentfilename;     string fileurl = "c:\\search\\" + stname + "\\" + strtfolder + "\\" + lblmessage.text;     string filename = fileurl;     if (filename != "")     {         string path = filename;         system.io.fileinfo file = new system.io.fileinfo(path);         if (file.exists)         {             response.clear();             response.addheader("content-disposition", "attachment; filename=" + file.name);             response.addheader("content-length", file.length.tostring());             response.contenttype = "application/octet-stream";             response.writefile(file.fullname);             response.end();         }         else         {             response.write("this file not exist.");         }     } } 

i don't see why should store session["documentname"] in code @ all. omitting part.

try code

protected void attchdwnld_rowcommand(object sender, gridviewcommandeventargs e) {     // gets clicked row of gridview     var row = ((linkbutton)e.commandsource).namingcontainer gridviewrow;     //gets filename in cliked row     var attachmentnamelabel = row.findcontrol("attachmentfilename") label;     //store lblmessage's text     lblmessage.text = attachmentnamelabel.text;     var filepath = string.format("c:\\search\\{0}\\{1}\\{2}",         stname, strtfolder, lblmessage.text);      var file = new system.io.fileinfo(filepath);     if (file.exists)     {         response.clear();         response.addheader("content-disposition", "attachment; filename=" + file.name);         response.addheader("content-length", file.length.tostring());         response.contenttype = "application/octet-stream";         response.writefile(file.fullname);         response.end();     }     else     {         response.write("this file not exist.");     } }