Animating the smooth collapse of panels within listviews

I have successfully implemented a smooth animation code for a collapsible panel, and it is working wonderfully:

<script type="text/javascript">

    function pageLoad(sender, args) {
        smoothAnimation();
    }


    function smoothAnimation() {
        var collPanel = $find(("<%= CollapsiblePanelExtender.ClientID %>"));
        collPanel._animation._fps = 30;
        collPanel._animation._duration = 0.5;
    }

</script>

However, I also have a listview with separate collapsible panel extenders inside each item. I would like to apply the same "smoothAnimation()" function to all of them, but dealing with unique IDs due to data-binding poses a challenge.

Can anyone provide guidance on how to handle this in JavaScript? Your assistance would be greatly valued.

javascriptasp.netajaxanimation

Answer №1

To implement the collapsible panel functionality, utilize the OnItemCreated event with the following code snippet:

protected void ListItems_Created(object sender, ListViewItemEventArgs e)
{
    CollapsiblePanelExtender cpe = (CollapsiblePanelExtender)e.Item.FindControl("collapsePanelID");
    cpe.Attributes.Add("onload", cpe.ClientID + "._animation._fps = 30;");
    cpe.Attributes.Add("onload", cpe.ClientID + "._animation._duration = 0.5;");

}

Note that this code has not been tested, but it should be sufficient to get your functionality up and running.

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