event-handling

问题 I have a site which is built out of many iframes. I am working on monitoring user activity - like when user clicks or keydown. This is only to see if user is idle or not. For this, I am drilling down to all iframes,its div tags and registering hover and click events. Meanwhile I dont want to override/break existing inline event handlers which are defined by the application. Will jquery override exiting eventhandlers? If yes, how can check this to make sure I dont do this? Here is my usage. $

问题 I want to delete an image every time I delete an item so I tried using an observer and put my code in deleted method, but I can't get deleted data although I'm using soft delete. I already try this in my observer, but it fail. public function deleted(Board $board) { $thisBoard = Board::withTrashed()->getDirty(); $imageName = $thisBoard['image']; Storage::delete("public/" . $board->getImageFolder() . $imageName); Storage::delete("public/" . $board->getImageFolder() . "thumbnail/{$imageName}");

问题 I’m using indexedDB for the first time, and the mozilla documentation states that errors bubble all the way to the “database” instance. It’s my understanding that event propagation in this system is entirely inherited from the DOM event model. I’m curious if what is meant is that errors will bubble all the way to IDBOpenDBRequest (that which is instantiated with indexedDB.open()). The documentation states that you can attach an onerror event handler to the top level IDB instances and it can

问题 We are creating a comic book application using C# and are having a mainForm created on startup as usual and then when pressing the '1' key a new form called detailForm pops up showing the details of the selected comic book. There is a also a third form that is created if you press '1' again on the detailForm that will bring up another form called comicForm that shows the actual comic book. Our problem begins when you press '1' to go to the detailForm from the mainForm and then immediately

问题 Public Event DocumentCompleted As WebBrowserDocumentCompletedEventHandler Dim arg() As Object = {homeTeam, guestTeam} AddHandler browser.DocumentCompleted, New WebBrowserDocumentCompletedEventHandler(AddressOf DoStuff) Private Sub DoStuff(ByVal sender As Object, ByVal e As WebBrowserDocumentCompletedEventArgs) End Sub How can I pass the homeTeam and guestTeam when firing the DocumentCompleted event. I want to ge the above to values to inside the Dostuff method. Please help. 回答1: First of all,

问题 Public Event DocumentCompleted As WebBrowserDocumentCompletedEventHandler Dim arg() As Object = {homeTeam, guestTeam} AddHandler browser.DocumentCompleted, New WebBrowserDocumentCompletedEventHandler(AddressOf DoStuff) Private Sub DoStuff(ByVal sender As Object, ByVal e As WebBrowserDocumentCompletedEventArgs) End Sub How can I pass the homeTeam and guestTeam when firing the DocumentCompleted event. I want to ge the above to values to inside the Dostuff method. Please help. 回答1: First of all,

问题 I'm using ItemAdding Event for one of my SPLists. The question is how I can get the new not yet added item from SPItemEventProperties? I've tried to ListItem.Item but the debuger shows that the property is set to Nothing. Any correction suggest? Best Regards T.S. 回答1: Ihe ItemAdding event fires before a recored is actually added so you can't access the fields using .Item. However you can access everything apart from ID (as its still not been created yet) in the .AfterProperties hash table.

问题 I'm using ItemAdding Event for one of my SPLists. The question is how I can get the new not yet added item from SPItemEventProperties? I've tried to ListItem.Item but the debuger shows that the property is set to Nothing. Any correction suggest? Best Regards T.S. 回答1: Ihe ItemAdding event fires before a recored is actually added so you can't access the fields using .Item. However you can access everything apart from ID (as its still not been created yet) in the .AfterProperties hash table.

问题 How to add event handlers to dynamic control( a button) in asp.net to do postback? Other than using Javascript, is it possible? 回答1: Yes, this is possible. So, for example, in your Page_Load you can create the button. This example is using VB This has to be recreated on postback, so DO NOT wrap it in an If (Not isPostBack) - otherwise it will not work Dim btn As Button = New Button() With {.Text = "Click Me", .ID = "MyId"} AddHandler btn.Click, AddressOf MyBtnClick ' This is the method to

问题 In Laravel 5.2 , i have added my Event Listener (into app\Providers\EventServiceProvider.php ), like: protected $listen = [ 'Illuminate\Auth\Events\Login' => ['App\Listeners\UserLoggedIn'], ]; Then generated it: php artisan event:generate Then in the Event Listener file itself app/Listeners/UserLoggedIn.php , it's like: <?php namespace App\Listeners; use App\Listeners\Request; use Illuminate\Queue\InteractsWithQueue; use Illuminate\Contracts\Queue\ShouldQueue; use Illuminate\Auth\Events\Login