Asp.net Ajex not working.

**thirith** · Aug 9th, 2009, 08:21 PM

Hi all,

I am new in Asp.net Ajex. I am trying to use Ajex in my project but it doesnot working as I expected.

When i click on the button to change text of label, it refresh whole page not only label control.
my asp.net code:

HTML Code:

asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:TextBox ID="txt" runat="server">
            </asp:TextBox>
            <asp:Label ID="lbl" runat="server">
            </asp:Label>
            <asp:Button ID="btn" runat="server" />
        </ContentTemplate>
    </asp:UpdatePanel>

**gep13** · Aug 10th, 2009, 02:19 AM

Hey,

Is that the only code that you have on your page? Or do you have any other markup on the screen?

Which version of Visual Studio are you using? If you are using Visual Studio 2005 have you added the necessary references to the AJAX Extensions?

Have a look at the following videos which should give you some tips:

http://www.asp.net/learn/ajax-videos/

Hope that helps!!

Gary

**thirith** · Aug 10th, 2009, 02:26 AM

Originally Posted by gep13

Hey,

Is that the only code that you have on your page? Or do you have any other markup on the screen?

Which version of Visual Studio are you using? If you are using Visual Studio 2005 have you added the necessary references to the AJAX Extensions?

Have a look at the following videos which should give you some tips:

http://www.asp.net/learn/ajax-videos/

Hope that helps!!

Gary

Yes, I did watch sample Video on Asp.net web site. I also pratice with that too and it was successed.

The project that is not working did not show any error on the page.
The problem is only, when i click on button it refresh a whole page not only control in update panel.

Anyway, I used VS 2008.

**rjv_rnjn** · Aug 10th, 2009, 10:32 AM

That's surprising. I took your HTML code and the page doesn't do a full postback. Here is the code

Code:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="ForumTest.aspx.vb" Inherits="ForumTest" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    
    <asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:TextBox ID="txt" runat="server"  Width="20em">
            </asp:TextBox>
            <asp:Label ID="lbl" runat="server">
            </asp:Label>
            <asp:Button ID="btn" runat="server" Text="Click Me!" />
        </ContentTemplate>
    </asp:UpdatePanel>
</div>
    </form>
</body>
</html>

And code behind

Code:

Partial Class ForumTest
    Inherits System.Web.UI.Page

    Protected Sub OnClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click
        txt.Text = "Updated time:" + DateTime.Now()
    End Sub
End Class

**mendhak** · Aug 10th, 2009, 01:58 PM

Is this a brand new project or an existing project to which you are adding this page?

**thirith** · Aug 10th, 2009, 09:19 PM

Originally Posted by mendhak

Is this a brand new project or an existing project to which you are adding this page?

It is an exist project.

For branch new project it works.

**thirith** · Aug 10th, 2009, 09:24 PM

Originally Posted by rjv_rnjn

That's surprising. I took your HTML code and the page doesn't do a full postback. Here is the code

Code:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="ForumTest.aspx.vb" Inherits="ForumTest" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    
    <asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:TextBox ID="txt" runat="server"  Width="20em">
            </asp:TextBox>
            <asp:Label ID="lbl" runat="server">
            </asp:Label>
            <asp:Button ID="btn" runat="server" Text="Click Me!" />
        </ContentTemplate>
    </asp:UpdatePanel>
</div>
    </form>
</body>
</html>

And code behind

Code:

Partial Class ForumTest
    Inherits System.Web.UI.Page

    Protected Sub OnClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click
        txt.Text = "Updated time:" + DateTime.Now()
    End Sub
End Class

Yes, it is. the same code but new project and it works. I think because of configuration. But I cannot find what's wrong in my configuration file. Because when I did a comparison line by line with work project, it is the same.

**thirith** · Aug 15th, 2009, 01:32 PM

Hey all,

I found what is the solution.
Because XHTMLConformance mode set to "Legacy".

Useful link:
http://sankarsan.wordpress.com/2008/...l-conformance/

Thanks,
Chan

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