postback problem

i have asp.net web page,on page load i create a simple html table with fixed no of rows and no of columns and their names are determined dynamically.now i have few javascipt functions for adding a row to table,for adding another column to table and for removinga row from table.

also i have a asp:button on click of which a xml file is generated from the data filled in by user in the table.but as soon as i hit the asp button to generate xml all newley added rows and columns are deleated.Is it possible to call a server side function without posting the page back.

Yes, it is

take a look at this article about client scripts callbacks:

http://msdn.microsoft.com/msdnmag/issues/04/08/CuttingEdge/

Cheers,

Yani

hey went throught the article actually i mean new to all this so didnt get it completely some code help from ur side will be appriciated

actually i have a method on server side that accepts the html table parses it and writes the data of html table in a xml file.

and i want to call this method on click of a button and without postback.

thanx in advance

sandeep

Sorry man,

I haven't put the client scripts callbacks into practice yet too.

I was going to use them to create a dynamic progress bar, but then i've decided to use the ajax update panel.

It was much faster and cheaper.

Cheers,

Yani

Problem Adding Declarative Script to a Content Page

Problem Adding Declarative Script to a Content Page - I get this error:

"Assertion failed: could not find HTML element with ID "Wait" for control type Sys.UI.Image"

I have the following:

<asp:ContentID="Content1"ContentPlaceHolderID="ContentPlaceHolder1"Runat="Server">

<atlas:ScriptManagerID="ScriptManager1"runat="server"EnablePartialRendering="True">

</atlas:ScriptManager>

<scripttype="text/xml-script">

<page xmlns:script="http://schemas.microsoft.com/xml-script/2005">

<components>

<image id="Wait" visibilityMode="Collapse" />

</components>

</page>

</script>

<imgid=Waitrunat=serversrc="Images/spinner.gif"/>

Server controls do not always have the same client ID as the ID you specify - instead, they are given a unique ID based on what naming containers they live in. If you do a View Source on the client, you'll see this.

There are two ways to solve this:

1) Don't make the img a server control. This makes sense if you're not doing anything dynamic with the image on the client - there's no value in making it a server control.

2) If you do need to make the image a server control, you can obtain the ClientID property of the control and databind that into your script:

<image id="<%# Wait.ClientID %>" visibilityMode="Collapse" />

You'll need to call DataBind on the page (or on a container control that contains the script) to get this databinding to happen.

Thanks,

Thank you.

Side question: Does it matter 'where' on the page the xml script tags are located?

The reason I ask: In the examples they are usually located outside of the form tags - but since the content pages do not have form tags.

Thanks again for the quick response.

Problem converting inserted html to ajax client control

Hi,

im inserting a htmltable which is returned by a webservice into a div container.
My problem is that i am not able to create a client control out of this htmltable (or its child elements)
although its inserted properly. It seems that inserted HTML is not available in the dom right after insertion.
Any suggestions?

thank you!
spoekes

Try to post some codes and give us some brief description here.We will try our best to help you.