This is a CollapsiblePanelExtender with the usual extend and collapse buttons.here yuou can click event fire off when the extender is extended and a different click event fire off when the extender is collapsed.
Read The Full Tutorial.
This is a CollapsiblePanelExtender with the usual extend and collapse buttons.here yuou can click event fire off when the extender is extended and a different click event fire off when the extender is collapsed.
Here is the code you can check:
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'); });
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