(1) collapsiblepanelextender expansion/collapse: the length and width of the target control are incorrect and there are several pixel deviations.
Original application: collapsiblepanelextender uses the standard boxing model to calculate the size of the target control. However, some earlier versions of IE do not support this calculation method.
A: Add the following sentence to the first line of the page to display the browser in a standard format: <! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
(2) control collapsiblepanelextender programmatically expand and collapse: CPE. clientstate = "false"; CPE. Collapsed = false; (expand)
(3) Solve the Problem of asymmetry of dropshadowextender shadow position: Set trackposition = "true ";
(4) hovermenuextender flashes if the hovermenu is loaded too slowly: Add: Style = "visibility: hidden;" to the target panl ;"