tab container selected - all things are disappear
<p>I am using a ASP.Net and AJAX web which contain </p>

<ol>
<li><p>TabContainer </p></li>
<li><p>gridView(grid view generated in run time and make 1 of
    the column as the tab page header)</p></li>
<li><p>combobox</p></li>
<li><p>2 textbox(date fr/to)<br>
button</p></li>
</ol>

<p>Problem is.. after the data was retrieved.. everything look find. now i want to fire the tab container event.. <strong>autopostback set to true</strong>.. once user selected the tabs.. all the things from the page are <strong>disappear</strong>..(actually i test for other component which is set the autopost to true.. it will make some effect) its seem to be reload without pulling back the existing movement.. what can i do to enhance it? is it anything related to my coding? or setting? or concept was wrong already?
before tab click
<img src="http://i.stack.imgur.com/tBbUX.jpg" alt="enter image description here">
after tab is selected
<img src="http://i.stack.imgur.com/W00p5.png" alt="enter image description here"></p>
