event-bubbling | 易学教程

Preventing WPF TreeView's SelectedItemChanged event from bubbling

阅读更多关于 Preventing WPF TreeView's SelectedItemChanged event from bubbling

I have a WPF TreeView which triggers a SelectedItemChanged event. Whenever I select an item in the TreeView , the SelectedItemChanged event is triggered for the selected item and all of the selected node's ancestors in the tree . How do I prevent the SelectedItemChanged event from firing more than once? Set the e.Handled to true in the handler. EDIT As an update to this subject, view this blog post . 来源： https://stackoverflow.com/questions/1127614/preventing-wpf-treeviews-selecteditemchanged-event-from-bubbling

jquery accordion prevent bubbling / allow default link action

阅读更多关于 jquery accordion prevent bubbling / allow default link action

问题 I have an accordion setup as so: $('.shortheadline').accordion({ active: false, header: '.headline', autoHeight: false, animated: 'slowslide', changestart: function(event, ui) { $('.brief').css('min-height','0') }, change: function(event, ui) { $('.brief:visible').css('min-height','80px'); $('.headline').blur(); } }); I want the click to only register on the .headline div, not the link inside. The link should take you to the article page. <div class="shortheadline"> <div class="entry"> <div

Checkbox inside an anchor click behavior

阅读更多关于 Checkbox inside an anchor click behavior

Consider following snippet: <!DOCTYPE html> <html> <head> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> </head> <body> <form> <a id="a" href="http://google.com">Goooooogle</a> </form> <script> $(function() { var checkbox = $('<input type="checkbox"></input>'); checkbox.prependTo($('#a')); checkbox.click(function(e) { e.stopPropagation(); // do something useful }); }); </script> </body> </html> I want to get a checkbox inside <a> , and get following on-click behavior: Toggle check mark normally as usual Do something useful like

Checkbox inside an anchor click behavior

阅读更多关于 Checkbox inside an anchor click behavior

问题 Consider following snippet: <!DOCTYPE html> <html> <head> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> </head> <body> <form> <a id="a" href="http://google.com">Goooooogle</a> </form> <script> $(function() { var checkbox = $('<input type="checkbox"></input>'); checkbox.prependTo($('#a')); checkbox.click(function(e) { e.stopPropagation(); // do something useful }); }); </script> </body> </html> I want to get a checkbox inside <a>

Event bubbling and the onblur event

阅读更多关于 Event bubbling and the onblur event

I'm writing a form validation script and would like to validate a given field when its onblur event fires. I would also like to use event bubbling so i don't have to attach an onblur event to each individual form field. Unfortunately, the onblur event doesn't bubble. Just wondering if anyone knows of an elegant solution that can produce the same effect. ppk has a technique for this, including the necessary workarounds for IE: http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html You're going to need to use event capturing (as opposed to bubbling) for standards-compliant browsers

AS3 Event Bubbling outside of the Scenegraph/DisplayList

阅读更多关于 AS3 Event Bubbling outside of the Scenegraph/DisplayList

问题 Hi just wondering if it is possible to take advantage of event bubbling in non display list classes in AS3. For example in the model of an application where there is a City class that contains many Cars. What methods are there to attach an event listener to a City object and receive events that bubble up from the child Cars. To clarify The City and Car objects are not part of the display list, they are not DisplayObjects. So can bubbling be implemented outside of the display list somehow? As

disable event-bubbling c# wpf

阅读更多关于 disable event-bubbling c# wpf

I'm having the following problem: When I got two labels into each other: <Label x:Name="First" MouseUp="Label_MouseUp"> <Label x:Name="Second" MouseUp="Label_MouseUp_1">This is a label into another label</Label> </Label> And the following code: private void Label_MouseUp(object sender, MouseButtonEventArgs e) { Console.WriteLine("Do NOT show me"); } private void Label_MouseUp_1(object sender, MouseButtonEventArgs e) { Console.WriteLine("Show me"); } When i click "Second", I want it to trigger only "Label_MouseUp_1". But in my console i get: Show me Do NOT show me Is there a way to turn off the

Prevent event bubbling in Vue

阅读更多关于 Prevent event bubbling in Vue

问题 <div id="largeArea" v-on:click="do_X"> <button>Button</button> </div> So I have this issue in Vue where I don't want "do_X" to trigger when I click on the button, although its a part of the largeArea. 回答1: From the documentation, use the self event modifier to only capture events originating on the element itself... <div id="largeArea" v-on:click.self="do_X"> new Vue({ el: '#app', methods: { do_X () { console.log(Date.now(), 'do_X') } } }) #largeArea { padding: 20px; border: 1px solid black;

Ember: nested components events bubbling

阅读更多关于 Ember: nested components events bubbling

问题 I've created a set of nested components. The code is here: http://emberjs.jsbin.com/hasehija/2/edit. HTML: {{#level-1}} {{#level-2}} {{#level-3}} <button {{action 'handleAction'}}> Click me (yielded) </button> {{/level-3}} {{/level-2}} {{/level-1}} JS: App.ApplicationController = Ember.Controller.extend({ actions: { handleAction: function() { alert('Handled in ApplicationController'); } } }); App.Level1Component = Ember.Component.extend({ actions: { handleAction: function() { alert('Handled

Ember: nested components events bubbling

阅读更多关于 Ember: nested components events bubbling

I've created a set of nested components. The code is here: http://emberjs.jsbin.com/hasehija/2/edit . HTML: {{#level-1}} {{#level-2}} {{#level-3}} <button {{action 'handleAction'}}> Click me (yielded) </button> {{/level-3}} {{/level-2}} {{/level-1}} JS: App.ApplicationController = Ember.Controller.extend({ actions: { handleAction: function() { alert('Handled in ApplicationController'); } } }); App.Level1Component = Ember.Component.extend({ actions: { handleAction: function() { alert('Handled in Level 1'); } } }); App.Level2Component = Ember.Component.extend({ actions: { handleAction: function(