I'm using the BalloonPopupExtender on a text box in order to say : "Unknown input" because its the only one that allows me to have a panel in which i can insert whatever controls i want.
i want from a button push to show it and from a text change in the textbox to hide it. i noticed there is no visibility property for BalloonPopupExtender, only the DisplayOnFocus, DisplayOnClick.... properties. but no way to control it from another button or function.
how can i hide/show the BalloonPopupExtender?
Ok i found the answer:
in the javascript i wrote :
var ctrl = $find('PopupCnt');
event.cancelBubble = true;
if (ctrl._popupVisible == true)
ctrl.hidePopup();
else
ctrl.showPopup();
the 'event.cancelBubble = true' row did the thing.
and another thing - i was pushing a button that caused a postback so even if the popup showed it would reset when the new page is up so it looked like it didn't work. i just created a button with no postback and it worked.