Button is not working with Update Panel in asp.net

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Hi,

In my online test site I have placed a timer and a label for displaying countdown time in an update panel. I have placed the next button for displaying the next question outside the update panel.

My problem is that the button click is not working with the update panel. Without using the update panel and the timer it works well. How can I solve the problem?

I have also tried to place whole tools inside the update panel. It didn't help me.

Here is my code:

XML

<asp:UpdatePanel ID="UpdatePanel1" runat="server">

  <ContentTemplate>
    <table class="style1">

        <tr>
            <td class="style2">

                <asp:Timer ID="Timer1" runat="server" Interval="1000" ontick="Timer1_Tick">
                </asp:Timer>
                <asp:Label ID="lblTimer" runat="server"></asp:Label>

        </tr>
        <tr>
            <td style="margin-left: 40px" class="style3">
                <asp:Label ID="lblQuestion" runat="server"></asp:Label>
            </td>
        </tr>
        </table>
         </ContentTemplate>
                 </asp:UpdatePanel>
        <table>
        <tr>
            <td style="margin-left: 40px" class="style2">
                <asp:RadioButtonList ID="rblOptions" runat="server">
                </asp:RadioButtonList>
            </td>
        </tr>
        <tr>
            <td style="margin-left: 40px" class="style2">
                <table class="style1">
                    <tr>
                        <td class="style2">
                            <asp:Button ID="btnNext" runat="server" onclick="btnNext_Click" Text="Next"
                                Width="75px" />

                        </td>
                        <td>

                            <asp:Button ID="btnFinish" runat="server" onclick="btnFinish_Click"
                                Text="Finish" Width="75px" />
                        </td>
                    </tr>
                    <tr>
                        <td class="style2">
                            &nbsp;</td>
                        <td>
                            <asp:Label ID="lblScore" runat="server">Score : </asp:Label>
                        </td>
                    </tr>
                </table>

I added the following code.

XML

<Triggers>
     <asp:AsyncPostBackTrigger ControlID="btnNext" EventName="Click"/>
</Triggers>

Still it didn't work. Could you please help me....

The selection of radio button is automatically cleared when using update panel. Any help....?

Thank you....

Posted 23-Oct-11 19:35pm

Neha Thanka

Updated 22-Oct-19 12:40pm

v8

Add a Solution

9 solutions

Solution 8

Hi, check the required field validator in the page ,may be it will restrict the click event, the same is happened for me, and now get solved

I am set the causes validation = False for that button

Posted 8-Sep-15 21:10pm

dinesh8

Comments

Member 13757434 12-Jun-19 19:03pm

Absolutely that's my problem... And now Solved...
Goodjob 👍👍

Solution 3

yes as AmarSingh answered.. you need to register NEXT button to update panel. for registration you need to use <asp:asyncpostbacktrigger xmlns:asp="#unknown"> inside the UpdatePanel

i.e.

C#

<updatepanel>
   <contenttemplate>
       ... body ......
   </contenttemplate>

  <triggers>
     <asp:asyncpostbacktrigger controlid="btnNext" eventname="Click" />
  </triggers>
<updatepanel></updatepanel></updatepanel>

Hope it will help you :)

Posted 23-Oct-11 21:02pm

Zubair Alie

Updated 23-Oct-11 21:06pm

v2

Solution 2

You can use this

ASP.NET

<asp:AsyncPostBackTrigger ControlID="btnNext" />

or

please provide some code.

Posted 23-Oct-11 19:44pm

AmarSinghRawat

Updated 23-Oct-11 19:45pm

v2

Comments

Neha Thanka 24-Oct-11 2:26am

Sir, I have updated my question with code. Please help me.

AmarSinghRawat 24-Oct-11 3:04am

I am unable to find any problem in your code except missing <td> <tr> and <table> tags.

Please paste this code.

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<contenttemplate>
<table class="style1">
<tr>
<td class="style2">
<asp:Timer ID="Timer1" runat="server" Interval="1000" OnTick="Timer1_Tick">

<asp:Label ID="lblTimer" runat="server">
</td>
</tr>
<tr>
<td style="margin-left: 40px" class="style3">
<asp:Label ID="lblQuestion" runat="server">
</td>
</tr>
</table>

<table>
<tr>
<td style="margin-left: 40px" class="style2">
<asp:RadioButtonList ID="rblOptions" runat="server">

</td>
</tr>
<tr>
<td style="margin-left: 40px" class="style2">
<table class="style1">
<tr>
<td class="style2">
<asp:Button ID="btnNext" runat="server" OnClick="btnNext_Click" Text="Next" Width="75px" />
</td>
<td>
<asp:Button ID="btnFinish" runat="server" OnClick="btnFinish_Click" Text="Finish"
Width="75px" />
</td>
</tr>
<tr>
<td class="style2">
</td>
<td>
<asp:Label ID="lblScore" runat="server">Score :
</td>
</tr>
</table>
</td>
</tr>
</table>

AmarSinghRawat 25-Oct-11 1:43am

Have to try this code?

Solution 4

check below.. Use everything in content template

XML

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
   <contenttemplate>

            <table class="style1">
                <tr>
                    <td class="style2">
                        <asp:Timer ID="Timer1" runat="server" Interval="1000" OnTick="Timer1_Tick">

                        <asp:Label ID="lblTimer" runat="server">
                    </td>
                </tr>
                <tr>
                    <td style="margin-left: 40px" class="style3">
                        <asp:Label ID="lblQuestion" runat="server">
                    </td>
                </tr>
            </table>


    <table>
        <tr>
            <td style="margin-left: 40px" class="style2">
                <asp:RadioButtonList ID="rblOptions" runat="server">

            </td>
        </tr>
        <tr>
            <td style="margin-left: 40px" class="style2">
                <table class="style1">
                    <tr>
                        <td class="style2">
                            <asp:Button ID="btnNext" runat="server" OnClick="btnNext_Click" Text="Next" Width="75px" />
                        </td>
                        <td>
                            <asp:Button ID="btnFinish" runat="server" OnClick="btnFinish_Click" Text="Finish"
                                Width="75px" />
                        </td>
                    </tr>
                    <tr>
                        <td class="style2">
                        </td>
             <td> <asp:Label ID="lblScore" runat="server">Score : </td> </tr> </table> </td> </tr> </table>

 </contenttemplate>
 
  <triggers>
     <asp:asyncpostbacktrigger controlid="btnNext" xmlns:asp="#unknown" />
  </triggers>

Posted 26-Oct-11 23:14pm

kishorekke

Comments

Kailash_Singh 6-Jul-12 6:12am

My code is working fine when it is running locally. But after publishing it in web server, its not working....

my code is:
<tr><td><asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<contenttemplate>
<asp:ListBox ID="lstEmployee" runat="server" Width="200px">
<asp:Button ID="btnMoveRight" runat="server" Text=">>" OnClick="btnMoveRight_Click" />
<asp:Button ID="btnMoveLeft" runat="server" Text="<<" OnClick="btnMoveLeft_Click1" />
<asp:ListBox ID="ddlFor" runat="server" Width="300px" SelectionMode="Multiple">

</td></tr>

Solution 7

Inside "contenttemplate" use single div to wrap whole data it may be due to mulitiple table tags in "contenttemplate" use a div to wrap them all...
Like this .....

<contenttemplate>
<div>

<table />
<table />
<table />
<table />

</div>
</contenttemplate>

Posted 16-Dec-14 18:45pm

Kumar Pankaj Verma

Updated 16-Dec-14 18:46pm

v2

Comments

Deepu S Nair 17-Dec-14 7:30am

Answering for older and solved questions may cause downvoting.so please avoid it.

Solution 6

Hey its not the problem with updatepanel
check your code by removing all try catch inside the button...there might be some error...correct it..then it will work fine...I was also having same problem and i corrected it.

Posted 13-Jul-12 16:36pm

Raghava40

Comments

amruta khare 8-Oct-12 2:51am

i have used update panel in my desgin (aspx) page when i remove update panel at that time its working means text box text is change to respective language but when i put update panel the code is not working means text box language change on page load and on page refresh.but when i change drop down value or click any button event for eg click on reset button or cancel button or update button,it doesnot change the text box language.it remains in english text only this is major problem in my project pls help me out.thanku so much

Solution 9

C#

 This question has been long asked without an answer.
I faced a similar problem and discovered I had double <' form> tags defined in my HTML source code. As soon  As I removed this extra <form> tag everything in the update panel worked perfectly.
Hope this helps someone.

Posted 2-Jul-16 0:05am

Member 12615068

Comments

CHill60 3-Jul-16 17:31pm

"Without an answer".. this is solution 9 and the OP accepted a solution over 4 years ago!

Solution 10

try this
<triggers> <asp:PostBackTrigger ControlID="btnEdit" />

Posted 31-Dec-17 22:43pm

Member 11797705

Updated 31-Dec-17 22:44pm

v2

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sabbi26 · Accepted Answer · 2011-10-27T03:00:00

Solution 5

Hi,
If ur using master page than add this code in ur page load event

using AjaxControlToolkit;

ToolkitScriptManager objScriptManager = (ToolkitScriptManager)this.Master.FindControl("ScriptManager1");
        objScriptManager.AsyncPostBackTimeout = 36000;

I hope it will help

Thanks...

Posted 27-Oct-11 3:00am

sabbi26

Comments

Neha Thanka 28-Oct-11 1:35am

Thank you sir.....