File upload not working in update panel

Question

0.00/5 (No votes)

See more:

Hi,
i want to upload a picture using file upload control.i am using update panel.when i am submitting the form,fileupload.hasfile returns false.how do i solve this?

Posted 3-Feb-12 1:22am

kishorek206

Add a Solution

7 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Syed Salman Raza Zaidi · Answer 1 · 2012-02-03T01:26:00

Solution 1

just add the following code into your application.
that will cuse the panel to postback and eventually the fileupload control will start working.

XML

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="conditional">
 <Triggers>
  <asp:PostBackTrigger ControlID="Button1" />
 </Triggers>

Posted 3-Feb-12 1:26am

Syed Salman Raza Zaidi

Updated 3-Feb-12 2:31am

v2

Comments

miteshjain1 23-Jan-14 7:36am

as if i dont want to make page reload or refresh than what shall i have to do

kishorek206 · Answer 2 · 2012-02-03T01:46:00

Place the button into separate UpdatePanel and set the PostBack trigger there
Ex:

XML

<asp:updatepanel id=""up1"" runat=""server"><br" mode="hold" xmlns:asp="#unknown" /><ContentTemplate>
 <table><tr> <td>
<asp:Button ID="btnSubmit" runat="server" CssClass="tbutton" OnClick="btnSubmit_Click"Text="Submit" ToolTip="Click here to Submit"                   ValidationGroup="Save" /> </td >

XML

</tr>
 </table>
 </ContentTemplate>
 <Triggers>
 <asp:PostBackTrigger ControlID="btnSubmit" />
</Triggers>
 </asp:UpdatePanel>

Suvendu Shekhar Giri · Answer 3 · 2012-05-27T21:38:00

Solution 3

try this -

C#

Page.Form.Attributes.Add("enctype", "multipart/form-data");

Posted 27-May-12 21:38pm

Suvendu Shekhar Giri

Updated 27-May-12 21:41pm

v2

ujjwal uniyal · Answer 4 · 2012-05-27T21:40:00

Solution 4

Add this

HTML

Page.Form.Attributes.Add("enctype", "multipart/form-data");

it will start working.

Also set the update mode of the update panel to conditional. and add a trigger and set it's controlId to the upload button

Posted 27-May-12 21:40pm

ujjwal uniyal

Updated 27-May-12 21:41pm

v2

SumantaBanerjee · Answer 5 · 2013-04-17T00:16:00

Solution 5

Works for me! thanks :-)

Page.Form.Attributes.Add("enctype", "multipart/form-data");

My problem is :

Have used Fileupload control in update panel. failed to load file.
added this in Page load event and added a trigger (postbacktrigger) in update panel. Now Works perfectly.

Posted 17-Apr-13 0:16am

SumantaBanerjee

TrushnaK · Answer 6 · 2013-04-17T00:32:00

Solution 6

i also face same problem. i used postback trigger.

XML

<asp:updatepanel id="updPnl"  runat="server" UpdateMode="conditional">
<ContentTemplate>
</ContentTemplate>
<Triggers>
  <asp:PostBackTrigger ControlID="Button1" />
 </Triggers>

Posted 17-Apr-13 0:32am

TrushnaK

Rekhash · Answer 7 · 2013-04-17T01:20:00

Solution 7

Page.Form.Attributes.Add("enctype", "multipart/form-data");

You Refer This link
http://blog.anofsinger.com/2007/10/file-upload-not-working-on-first.html[^]

Posted 17-Apr-13 1:20am

Rekhash