How to download a file from server

Question

1.00/5 (1 vote)

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Dear Friends,
I have a excel file in server. And i have a button in a web form. When user clicks that button it will download that excel file to client machine.

~~I need that code urgently.~~

I am using this below code

C#

Response.ContentType = "image/jpeg";
        Response.AppendHeader("Content-Disposition", "attachment; filename=Image.xml");
        Response.TransmitFile(Server.MapPath("XML/Image.xml"));
        Response.End();

It is working fine but when i keeping it within Update Panel not working. Any suggestion.

Posted 17-Aug-12 2:55am

Sunil Kumar Pandab

Updated 17-Aug-12 3:27am

RaviRanjanKr

v3

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Comments

[no name] 17-Aug-12 9:08am

www.vworker.com

I.explore.code 17-Aug-12 9:24am

this is not a code shop mate! the only reason i have suggested a solution is because you have shown your own efforts first unlike some people who say "i want do xyz. give me codes". And hence I have struck out that line in your question.

RaviRanjanKr 17-Aug-12 9:31am

Always wrap your code in pre tag.

3 solutions

Solution 1

try this on the button click event:

VB

Dim dlScript As String = String.Format("window.open('{0}');", "/XML/image.xml")
            ScriptManager.RegisterStartupScript(Page, GetType(String), "fileDownloadScript", dlScript, True)

it should work...it uses ScriptManager to register script to show the download dialog

Posted 17-Aug-12 3:20am

I.explore.code

Solution 3

Thanks kamalakanta nayak,
I used your suggestion for using Trigger

XML

<Triggers>
      <asp:PostBackTrigger  ControlID="Button1"  />
      </Triggers>

and it works fine..

Posted 17-Aug-12 3:56am

Sunil Kumar Pandab

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Kamalkant(kk) · Accepted Answer · 2012-08-17T03:44:00

XML

<div>
      <asp:ScriptManager ID="ScriptManager1" runat="server" >
      </asp:ScriptManager>
      <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
     <ContentTemplate>
      <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
      </ContentTemplate>
      <Triggers>
      <asp:PostBackTrigger  ControlID="Button1"  />
      </Triggers>

       </asp:UpdatePanel>
  </div>