Hi rakeshkuma,

CollapsiblePanel does not have any property to set the speed up or slow down the collapsing or expanding feature.

The expanding depends on how fast the content come from the server. The next (after the first) expand could be faster if caching of the content is done.

So you can't handle this.

Hi rakeshkuma,

You can do it from server side aswell.

Write index or id of accordion pane in which the button was pressed using ClientScript.RegisterStartupScript.

Let user clicks button which is in pane 3 then it will work like.

protected void btnSubmitClick(object sender, EventArgs e)
{
    // Button click event code.
    int index = 1;
    string script = "<script type=\"text/javascript\">var paneIndex = " + index + "</script>"; 
    ClientScript.RegisterStartupScript(typeof(this, script);
}

JavaScript

$(function(){
    if(paneIndex){
        $('.selector').accordion({active: paneIndex});
    } else {
        $('.selector').accordion();
    }
});