AJAX :: Execute Javascript After Modal Popup Shown

Nov 3, 2010

Using ASP.NET 2.0, VB code behind, I am using a ModalPopupExtender to show some dynamic content on my site inside an update panel. The problem I am having is that sometimes the content stretches the modal pop-up panel (div) so that it flows off the screen. In cases where the height of the popup panel exceeds some defined height I would like to limit the height and add a vertical scroll bar (otherwise the panel should have no height minimum).

I have written a JavaScript to perform this task (see below). I use my code behind to display the modal popup... so now my problem is how (when) do I kick-off my javascript to limit the height of my modal popup. Kicking off the script on pageLoaded finds that the popup container's display setting has not been set yet, therefore ConstrainPanelHeight is never executed... how can I kick off my javascript after the model popup is shown?


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