I have a a CollapsiblePanelExtender with the usual extend and collapse buttons....I would like to have a click event fire off when the extender is extended and a different click event fire off when the extender is collapsed. But the most important event is when it is extended. I could live without a click even on collapse.
Most of the examples I've found online searching using: "CollapsiblePanelExtender" "click event" is having the extender react based on a click even else where...
I want the extender to fire off a JS when clicked.
How should I go about accomplishing this? Am I asking the wrong question/using the wrong search strings?
CollapsiblePanelExtender extendatron = new CollapsiblePanelExtender();
extendatron.ID = "cpe" + MenuId;
extendatron.TargetControlID = "pnlContent" + strMenuId;
extendatron.ExpandControlID = "pnlMenu" + strMenuId;
extendatron.CollapseControlID = "pnlMenu" + strMenuId;
extendatron.Collapsed = bCollapsed;
extendatron.TextLabelID = strMenuName;
extendatron.ExpandedText = m_strButtonLabelHide;
extendatron.CollapsedText = m_strButtonLabelShow;
extendatron.ImageControlID = "imglnk" + strMenuId;
extendatron.CollapsedImage = "~/App_Themes/default/nbExpand.gif";
extendatron.ExpandedImage = "~/App_Themes/default/nbCollapse.gif";
extendatron.SuppressPostBack = true;
extendatron.ScrollContents = false;
var extender = $find('extendatron'); //this would be <%=myExtender.ClientID%>
extender.add_collapsed( function() { alert('collapsed'); });
extender.add_expanded( function() { alert('expanded'); });
I assume you're talking about the ASP.Net AJAX Control Toolkit. You can add handlers to the collapsed and expanded events as follows:
//this would be <%=myExtender.ClientID%> when using a master page
var extender = $find('myExtender_ClientId');
extender.add_collapsed( function() { alert('collapsed'); });
extender.add_expanded( function() { alert('expanded'); });
Let me know if you have any questions...I've done a fair bit of customizing some of these objects in various solutions.