event-handling

问题 I'm trying to implement a TransactionEventHandler like the one used in neo4j-versioning in order to create a time-machine style, versioned Neo4j database, now using Neo4j 2.x. It fails with the following infinite stack trace: javax.transaction.SystemException: TM has encountered some problem, please perform necessary action (tx recovery/restart) at org.neo4j.kernel.impl.transaction.TxManager.assertTmOk(TxManager.java:349) at org.neo4j.kernel.impl.transaction.TxManager.setRollbackOnly

问题 I'm trying to make a Win32/*nix console-based ASCII game. I want to use no libraries whatsoever that aren't standard C++ or on *nix/windows(.h). I want it to be structured like a game loop. Aka: while (!WIN_CLOSE_FUNCTION()) { //Do crap } //Do other shutdown crap return 0; Can anyone point me to what function this would be? If it is platform dependent, give me one example on Windows and *nix. 回答1: Similar question that might help you What happens when you close a c++ console application The

问题 I want to react, whenever an integer value has changed. So, is there a possibility to write an own eventhandler? I need to get the old value and the new one, because I have to de-reference some events for an object in a list with the index of the old value and reference these events to the listitem with the index of the new value. Something like this (really abstract): value.Changed += new Eventhandler(valuechanged); private void valuechanged(object sender, eventargs e) { list[e.Oldvalue] -=

问题 I have the code included below that allows me to do something the first time a user mouses over an element and then remove the event. It plays nice in the W3C event model browsers but keeps throwing an error in IE6-8. I got the code from another question and believed it would handle IE. Anyone see what I'm doing wrong? <script type="text/javascript"> function setMouseEvent() { //Tel: 01 8279 400 event = addEvent(document.getElementById('contactButton'), 'mouseover', changeText); } function

问题 How to insert an event to the aspx.cs page. I have one asp:button and i wish to add an event of that button in the aspx.cs page. how it done 回答1: Assume that you have a button like that : <asp:Button runat="server" ID="myButton" /> You can add Click event at your code-behind like that : myButton.Click += new EventHandler(myButton_Click); Or you can specify your event at design like that : <asp:Button runat="server" ID="myButton" OnClick="myButton_Click" /> 回答2: Just add the following to your

问题 I am using jquery datatables to display some data. Each row has an edit button for which I register a click handler with live(), so that it works with pagination. I am doing it by class since I have to do it for every row. Something like: Datatables with live click event function This works fine. But the problem happens when user does a search again and I do an ajax request to fetch a new set of results. I just replace the existing table in the dom with a new one. Now when I click on row 1 it

问题 I'm using a MouseMoveListener on a composite to update the image on another canvas. Basically, if the user drags Composite1 to somewhere on his screen, that will call the mouseMoveEventListener everytime the mouse moves, which will get the x,y location of the mouse, take a screenshot using Awt.robot.captureScreenRegion , and try to update the image of Canvas1 by calling its repaint() method. The purpose is just to show the user a preview of what's under the composite as he's dragging it. Here

问题 For Flot, is there an event that fires after the user has completed panning or zooming using the mouse scroll wheel(after the range.xaxis.to/from and range.yaxis.to/from have settled)? I am trying to use the line below to update the selection on an overview plot after the user has panned or zoomed in the main plot, but am finding that either the update to the overview plot happens after panning or zooming(not both). $("#plot").bind("mouseup scroll",updateOverviewSelection); Thanks in advance.

问题 I need to reset notification when user removes my app from background.So I need to have an event of remove app from background. Please help me out. Suggestion appreciated. Thanks. Kind Regards. 回答1: Official android documentation Activity.onDestroy() The final call you receive before your activity is destroyed. This can happen either because the activity is finishing (someone called finish() on it, or because the system is temporarily destroying this instance of the activity to save space.

问题 I have created two unrelated daemon processes in C in Linux Ubuntu. These processes are in the sleeping mode, they only wake up when the data is received, and perform the action implemented in the signal handler and again sleep. I have implemented this communication using SIGNAL IPC and message queue. Before sending the message, I send the signal SIGUSR1 and then send the data, and I wrote the signal handler for SIGUSR1 to perform required action. I would like to implement the same way of