c# - How to open a document onclick of linkbutton according -


i want open uploaded document in new window based on respective linkbutton id's. document saved full path in db.

<asp:linkbutton id="lnkstdres" runat="server" text='<%#eval("alias") %>' commandargument='<%#eval("idinst") %>' commandname="studentres" onclick="lnkstdres_click"></asp:linkbutton>    protected void lnkstdres_click(object sender, eventargs e)     {      }

i have no idea how that. thank 

if( ( file1.postedfile != null ) && ( file1.postedfile.contentlength > 0 ) ) {     string fn = system.io.path.getfilename(file1.postedfile.filename);     string savelocation = server.mappath("data") + "\\" +  fn;     try     {         file1.postedfile.saveas(savelocation);         response.write("the file has been uploaded.");     }     catch ( exception ex )     {         response.write("error: " + ex.message);         //note: exception.message returns detailed message describes current exception.          //for security reasons, not recommend return exception.message end users in          //production environments. better put generic error message.      } } else {     response.write("please select file upload."); }

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