events

问题 I've a trigger that detects a change on a field PHONE_EXT and POSTs an EVENT. I would like to post the Phone_ID with the event in order to use this ID in the client. Is this possible? How? CREATE TRIGGER tr2 FOR employee ACTIVE AFTER UPDATE POSITION 0 AS BEGIN IF (new.PHONE_EXT <> old.PHONE_EXT) THEN POST_EVENT 'phone_ext_changed'; <-- I would like to pass a string parameter with record ID END 回答1: AFAIK, you cannot pass parameters, but you can get what you want with one of this ideas: If in

问题 Before I start writing huge swathes of code that don't work I thought I'd ask this question. event.preventDefault() only cancels the default action of the click event doesn't it? Theoretically I should be able to bind mutiple click event handlers in jQuery to a given target to perform different actions like Ajax posts and Google tracking. Am I wrong? 回答1: event.preventDefault() only cancels the default action of the click event doesn't it? It cancels the browser's default action of the event

问题 Before I start writing huge swathes of code that don't work I thought I'd ask this question. event.preventDefault() only cancels the default action of the click event doesn't it? Theoretically I should be able to bind mutiple click event handlers in jQuery to a given target to perform different actions like Ajax posts and Google tracking. Am I wrong? 回答1: event.preventDefault() only cancels the default action of the click event doesn't it? It cancels the browser's default action of the event

问题 Before I start writing huge swathes of code that don't work I thought I'd ask this question. event.preventDefault() only cancels the default action of the click event doesn't it? Theoretically I should be able to bind mutiple click event handlers in jQuery to a given target to perform different actions like Ajax posts and Google tracking. Am I wrong? 回答1: event.preventDefault() only cancels the default action of the click event doesn't it? It cancels the browser's default action of the event

问题 This has been bugging me for more than two days now, so i thought i should ask. I am using Qt 4.5.3 (compiled with VC2008) on Win7. I have MyGraphicsView (inherits QGraphicsView) and MyFilter (inherits QObject) classes. When i install the MyFilter object as an event filter to MyGraphicsView, Mouse events are delivered to MyFilter after they are delivered to MyGraphicsView whereas Key events are delivered to MyFilter before they are delivered to MyGraphicsView. In the second case, i install

问题 How do I catch if map type was changed? catch if maptype id = roadmap/satellite/hybrid/terrain catch if streetview was used 回答1: Both of these are pretty straightforward - you simply listen to the proper events: Map Type Changed: google.maps.event.addListener(map, 'maptypeid_changed', function() { console.log("map type changed"); }); Streetview Activated: var pano = map.getStreetView(); google.maps.event.addListener(pano, 'visible_changed', function() { if (pano.getVisible()) { console.log(

问题 here is my js fiddle : http://jsfiddle.net/pYM38/16/ var box = document.getElementById('box'); var colors = ['purple', 'yellow', 'orange', 'brown', 'black']; box.onclick = function () { for (i = 0; i < colors.length; i++) { box.style.backgroundColor = colors[i]; } }; I'm in the process of learning JavaScript. I was trying to get this to loop through each color in the array, but when i click the box (demonstration on jsfiddle) it goes to the last element in the array. 回答1: Here are two methods

问题 here is my js fiddle : http://jsfiddle.net/pYM38/16/ var box = document.getElementById('box'); var colors = ['purple', 'yellow', 'orange', 'brown', 'black']; box.onclick = function () { for (i = 0; i < colors.length; i++) { box.style.backgroundColor = colors[i]; } }; I'm in the process of learning JavaScript. I was trying to get this to loop through each color in the array, but when i click the box (demonstration on jsfiddle) it goes to the last element in the array. 回答1: Here are two methods

问题 here is my js fiddle : http://jsfiddle.net/pYM38/16/ var box = document.getElementById('box'); var colors = ['purple', 'yellow', 'orange', 'brown', 'black']; box.onclick = function () { for (i = 0; i < colors.length; i++) { box.style.backgroundColor = colors[i]; } }; I'm in the process of learning JavaScript. I was trying to get this to loop through each color in the array, but when i click the box (demonstration on jsfiddle) it goes to the last element in the array. 回答1: Here are two methods

问题 I just can't understand what window.event() does in JavaScript. It is used without any definition. Same thing for document.event() . I also don't understand the difference between these two. Do they accept any arguments? 回答1: An event is something that is called when something happens, so for example click and keypress are events. The reason however for window.event() is for cross browser compatibility. So here is some javascript: object.onclick = function(e) { // e holds all of the