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  • Translating delegate usage from C# to VB

    - by Homeliss
    ContactManager.PostSolve += PostSolve; I am having a problem converting this piece of code from C# to VB.NET. ContactManager.PostSolve is a delegate. I tried the following but it doesn't work, it says PostSolve is not an event of ContactManager: AddHandler ContactManager.PostSolve, AddressOf PostSolve The following works, but this only allows me to have one handler for the delegate: ContactManager.PostSolve = new PostSolveDelegate(AddressOf PostSolve) Is there a way for me to do the same thing in VB that was done in the first piece of code? Thanks!

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  • javascript removeChild(this) from input[type="submit"] onclick breaks future use of form.submit() un

    - by maximumduncan
    I have come across some strange behaviour, and I'm assuming a bug in firefox, when removing a input submit element from the DOM from within the click event. The following code reproduces the issue: <form name="test_form"> <input type="submit" value="remove me" onclick="this.parentNode.removeChild(this);" /> <input type="submit" value="submit normally" /> <input type="button" value="submit via js" onclick="document.test_form.submit();" /> </form> To reproduce: Click "remove me" Click "submit via js". Note that the form does not get submitted, this is the problem. Click "submit normally". Note that the form still gets submitted normally. It appears that, under Firefox, if you remove a submit button from within the click event it puts the form in an invalid state so that any future calls to form.submit() are simply ignored. But it is a javascript-specific issue as normal submit buttons within this form still function fine. To be honest, this is such a simple example of this issue that I was expecting the internet to be awash with other people exeriencing it, but so far searching has yealded nothing useful. Has anyone else experienced this and if so, did you get to the bottom of it? Many thanks

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  • Event taps: Varying results with CGEventPost, kCGSessionEventTap, kCGAnnotatedSessionEventTap, CGEve

    - by kevingessner
    I'm running into a thorny problem with posting an event from an event tap. I'm tapping for NSSystemDefined at kCGHIDEventTap, then replacing the event with a new one. The problem I'm running in to is that depending on how I post the event, it's being seen only by some applications. My test applications are Opera, Firefox, Quicksilver, and Xcode. Here are the different techniques I've tried within my event tap callback, with results. I'm expecting an action (the "correct response") from each app; "system beep" means the nothing-is-bound-to-that-key system sound. Create a new event, and return it from the callback. Opera: no response/system beep, Firefox: no response/system beep, Quicksilver: correct response, Xcode: no response/system beep Create a new event, post to kCGSessionEventTap with CGEventPost, return null. Opera: no response/system beep, Firefox: no response/system beep, Quicksilver: correct response, Xcode: no response/system beep Create a new event, post to kCGAnnotatedSessionEventTap with CGEventPost, return null. Opera: correct response, Firefox: correct response, Quicksilver: no response/system beep, Xcode: no response/system beep Create a new event, post with CGEventTapPostEvent, return null. Opera: no response/system beep, Firefox: no response/system beep, Quicksilver: correct response, Xcode: no response/system beep Create a new event, post to kCGSessionEventTap with CGEventPost, and return new event. Opera: no response/system beep, Firefox: no response/system beep, Quicksilver: correct response, Xcode: no response/system beep Create a new event, post to kCGAnnotatedSessionEventTap with CGEventPost, and return new event. Opera: correct response and system beep, Firefox: correct response and system beep, Quicksilver: correct response and system beep, Xcode: no response/double system beep Create a new event, post with CGEventTapPostEvent, and return new event. Opera: no response/system beep, Firefox: no response/system beep, Quicksilver: correct response, Xcode: no response/system beep (6) is the best, but users are complaining about the extra system beep on correct responses, which I'm guessing is coming from the double-posting of the event. I'm not sure of other combinations to try, or where else to look. Can anyone offer any guidance? Is there any way to get the results of both returning the event from my callback and posting to the annotated tap without doing both? Sorry for the lengthy question; I've been doing a lot of experimenting. Thanks in advance Update: this is the code I use to create the event tap: CFMachPortRef eventTap; eventTap = CGEventTapCreate(kCGHIDEventTap, kCGHeadInsertEventTap, 0,CGEventMaskBit(NX_SYSDEFINED) | (1 << kCGEventKeyDown) | (1 << kCGEventKeyUp), myCGEventCallback, (void *)hidEventQueue);

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  • remove a:hover using javascript (not using jquery... don't ask)

    - by Cyprus106
    I thought this would be pretty simple.... Basically, it's a 5-star rating system. When a user clicks, for example, three stars... I want to freeze those three stars right where they're at. I've been trying to simply remove the hover for the a href so it stays what it was at... maybe that's not the right method. I've exhausted absolutely everything I can think of... By the way this is straight javascript, not jquery or anything. It's crazy, I know but all of the JS was written straight.... I've got this class: .star-rating li a{ display:block; width:25px; height: 25px; text-decoration: none; text-indent: -9000px; z-index: 20; position: absolute; padding: 0px; } .star-rating li a:hover{ background: url(images/alt_star.png) left bottom; z-index: 2; left: 0px; } .star-rating a:focus, .star-rating a:active{ border:0; -moz-outline-style: none; outline: none; } .star-rating a.one-star{ left: 0px; } .star-rating a.one-star:hover{ width:25px; } and this code: <ul class='star-rating'> <li><a href="#" onclick="javascript: vote(<?=$id;?>, 1); disableStars(); return false;" title='1 star out of 5' id="1s" class='one-star'>1</a></li>

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  • In Javascript event handling, why "return false" or "event.preventDefault()" and "stopping the event

    - by Jian Lin
    It is said that when we handle a "click event", returning false or calling event.preventDefault() makes a difference, in which the difference is that preventDefault will only prevent the default event action to occur, i.e. a page redirect on a link click, a form submission, etc. and return false will also stop the event flow. Does that mean, if the click event is registered several times for several actions, using $('#clickme').click(function() { … }) returning false will stop the other handlers from running? I am on a Mac now and so can only use Firefox and Chrome but not IE, which has a different event model, and tested it on FF and Chrome and all 3 handlers ran without any stopping…. so what is the real difference, or, is there a situation where "stopping the event flow" is not desirable? this is related to http://stackoverflow.com/questions/3042036/using-jquerys-animate-if-the-clicked-on-element-is-a-href-a and http://stackoverflow.com/questions/2017755/whats-the-difference-between-e-preventdefault-and-return-false

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  • How to expand on mouse click

    - by shamim
    http://findaccountingsoftware.com/directory/gba-systems/fams-fixed-assets-management-system/ this site contain a tab container .On Applications tab clicking on + sign it goes to expand ,i want to know this process name.How to do it?.There is a strange thing occur clicking on + sign expand automatically scroll move and focus on text .what this process name is .how to do that?

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  • Is there a workaround for JDBC w/liquibase and MySQL session variables & client side SQL instructions

    - by David
    Slowly building a starter changeSet xml file for one of three of my employer's primary schema's. The only show stopper has been incorporating the sizable library of MySQL stored procedures to be managed by liquibase. One sproc has been somewhat of a pain to deal with: The first few statements go like use TargetSchema; select "-- explanatory inline comment thats actually useful --" into vDummy; set @@session.sql_mode='TRADITIONAL' ; drop procedure if exists adm_delete_stats ; delimiter $$ create procedure adm_delete_stats( ...rest of sproc I cut out the use statement as its counter-productive, but real issue is the set @@session.sql_mode statement which causes an exception like liquibase.exception.MigrationFailedException: Migration failed for change set ./foobarSchema/sprocs/adm_delete_stats.xml::1293560556-151::dward_autogen dward: Reason: liquibase.exception.DatabaseException: Error executing SQL ... And then the delimiter statement is another stumbling block. Doing do dilligence research I found this rejected MySQL bug report here and this MySQL forum thread that goes a little bit more in depth to the problem here. Is there anyway I can use the sproc scripts that currently exist with Liquibase or would I have to re-write several hundred stored procedures? I've tried createProcedure, sqlFile, and sql liquibase tags without much luck as I think the core issue is that set, delimiter, and similar SQL commands are meant to be interpreted and acted upon by the client side interpreter before being delivered to the server.

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  • ComboBox doesn't fire SelectionChanged event

    - by Budda
    Subj. I am using Silverlight 4 with VS2010, here is a source code: <ComboBox Grid.Row="4" Grid.Column="1" Name="Player2All" MinWidth="50" ItemsSource="{Binding PlayersAll}" SelectionChanged="Player2All_SelectionChanged"> <ComboBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding ShortName}"/> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> Here is code behind function: private void Player2All_SelectionChanged(object sender, SelectionChangedEventArgs e) { OpenFileDialog ofd = new OpenFileDialog(); ofd.ShowDialog(); string strPlayerSelected = sender.ToString(); DebugTextBlock.Text = "hoho"; } This function is not called when I change selected item... Why? How can I get that workable? many thanks for any help.

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  • Javascript Onclick Problem with Table Rows

    - by Shane Larson
    Hello. I am having problems with my JScript code. I am trying to loop through all of the rows in a table and add an onclick event. I can get the onclick event to add but have a couple of problems. The first problem is that all rows end up getting set up with the wrong parameter for the onclick event. The second problem is that it only works in IE. Here is the code excerpt... shanesObj.addTableEvents = function(){ table = document.getElementById("trackerTable"); for(i=1; i<table.getElementsByTagName("tr").length; i++){ row = table.getElementsByTagName("tr")[i]; orderID = row.getAttributeNode("id").value; alert("before onclick: " + orderID); row.onclick=function(){shanesObj.tableRowEvent(orderID);}; }} shanesObj.tableRowEvent = function(orderID){ alert(orderID);} The table is located at the following location... http://www.blackcanyonsoftware.com/OrderTracker/testAJAX.html The id's of each row in sequence are... 95, 96, 94... For some reason, when shanesObj.tableRowEvent is called, the onclick is set up for all rows with the last value id that went through iteration on the loop (94). I added some alerts to the page to illustrate the problem. Thanks. Shane

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  • Javascript onbeforeunload Issue

    - by Nik
    Alright, I have an issue with the following code. What happens is when a user closes their browser, it should prompt them to either click OK or click CANCEL to leave the page. Clicking OK would trigger a window.location to redirect to another page for user tracking (and yes, to avoid flame wars, there is a secondary system in place to assure accurate tracking, in the event of the user killing the browser from the task manager (as mentioned in similar questions)). CANCEL would remain on the page, the issue being that no matter what button you hit, you get redirected as if you wanted to leave the page. The relevant code is below. window.onbeforeunload = confirmExit; function confirmExit() { var where_to = confirm("Click OK to exit, Click CANCEL to stay."); if (where_to == true) { window.location="logout.php"; } if (where_to == false){ alert("Returning..."); } }

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  • Long Press in JavaScript?

    - by Randy Mayer
    Hi, Is it possible to implement "long press" in JavaScript (or jQuery)? How? HTML <a href="" title="">Long press</a> JavaScript $("a").mouseup(function(){ // Clear timeout return false; }).mousedown(function(){ // Set timeout return false; }); Thank you!

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  • Silverlight handling multiple key press combinations.

    - by SilverDark
    I have a Silverlight application in which I catch certain key presses such as TAB or CTRL to perform some action. However, I want to be able to handle multiple keys pressed at the same time such as CTRL + R or something like that. Is there any way to do that in Silverlight, and if so, how? Thank you in advance.

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  • Need Help With This Simple Script (JavaScript Noob Question)

    - by three3
    Hi everyone, I am new to JavaScript (only a couple of days of reading a book) and I am stuck on this code snippet. I have looked at it over and over again but cannot seem to figure out why it is not working. I am sure it is something really simple that I have just looked over but I really just need a fresh pair of eyes to look at this. The code is supposed to update a placeholder image on a page without the page having to reload. But when I am clicking on the link of an image, it is taking me to the link where the image is located instead of replacing the placeholder image. Here is my HTML code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Image Gallery</title> <script type="text/javascript" src="scripts/showPic.js"></script> </head> <body> <h1>Snapshots</h1> <ul> <li> <a href="images/cat.jpg" onclick="showPic(this); return false;" title="A Cat">Cat</a> </li> <li> <a href="images/night.jpg" onclick="showPic(this); return false;" title="Night">Night</a> </li> <li> <a href="images/coke.jpg" onclick="showPic(this); return false;" title="Coke">Coke</a> </li> <li> <a href="images/sport.jpg" onclick="showPic(this); return false;" title="Sports">Sport</a> </li> <li> <a href="images/mnms.png" onclick="showPic(this); return false;" title="MnM's">MnM's</a> </li> <li> <a href="images/kid.jpg" onclick="showPic(this); return false;" title="A Kid">Kid</a> </li> </ul> <br /> <img src="images/placeholder.jpg" title="Place Holder Image"> </body> </html> And here is the JavaScript function I am using to get this done: <script type="text/javascript"> function showPic(whichpic) { var source = whichpic.getAttribute("href"); var placeholder = document.getElementById("placeholder"); placeholder.setAttribute("src",source); } </script> Any help is greatly appreciated and thanks in advance for the help.

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  • javascript using 'this' in global object

    - by Marco Demaio
    What does 'this' keyword refer to when used in gloabl object? Let's say for instance we have: var SomeGlobalObject = { rendered: true, show: function() { /* I should use 'SomeGlobalObject.rendered' below, otherwise it won't work when called from event scope. But it works when called from timer scope!! How can this be? */ if(this.rendered) alert("hello"); } } Now if we call in an inline script in the HTML page: SomeGlobalObject.show(); window.setTimeout("Msg.show()", 1000); everything work ok. But if we do something like AppendEvent(window, 'load', Msg.show); we get an error because this.rendered is undefined when called from the event scope. Do you know why this happens? Could you explain then if there is another smarter way to do this without having to rewrite every time "SomeGlobalObject.someProperty" into the the SomeGlobalObject code? Thanks! AppendEvent is just a simple cross-browser function to append an event, code below, but it does not matter in order to answer the above questions. function AppendEvent(html_element, event_name, event_function) { if(html_element.attachEvent) //IE return html_element.attachEvent("on" + event_name, event_function); else if(html_element.addEventListener) //FF html_element.addEventListener(event_name, event_function, false); }

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  • How to use visibilitychange event on Firefox Extensions

    - by Tom S.
    I'm trying to learn how to make a firefox extension. I want to create a toolbar that only shows up on a specific page. I can make the toolbar appear, but then it should become hidden when I open or switch to a new tab, or close the tab with that specific page. I don't understand how to make the visibilitychange event work though, no matter what I try nothing happens. window.addEventListener("load", function load(event){ window.removeEventListener("load", load, false); myExtension.init(); },false); var myExtension = { init: function (aEvent) { gBrowser.addEventListener("DOMContentLoaded", this.showToolbar, false); }, showToolbar: function(aEvent) { var doc = aEvent.originalTarget; if(doc.location.href=="http://www.google.ca/"){ eToolbar=document.getElementById("nav-toolbar"); eToolbar.hidden=false; //no matter how I change this line below it never does anything gBrowser.addEventListener("mozvisibilitychange", this.toggleToolbar, false); } }, toggleToolbar: function(aEvent) { eToolbar=document.getElementById("nav-toolbar"); if(document["mozVisibilityState"]=="mozHidden"){ eToolbar.hidden=true; } else { eToolbar.hidden=false; } } }

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  • You do not need a separate SQL Server license for a Standby or Passive server - this Microsoft White Paper explains all

    - by tonyrogerson
    If you were in any doubt at all that you need to license Standby / Passive Failover servers then the White Paper “Do Not Pay Too Much for Your Database Licensing” will settle those doubts. I’ve had debate before people thinking you can only have a single instance as a standby machine, that’s just wrong; it would mean you could have a scenario where you had a 2 node active/passive cluster with database mirroring and log shipping (a total of 4 SQL Server instances) – in that set up you only need to buy one physical license so long as the standby nodes have the same or less physical processors (cores are irrelevant). So next time your supplier suggests you need a license for your standby box tell them you don’t and educate them by pointing them to the white paper. For clarity I’ve copied the extract below from the White Paper. Extract from “Do Not Pay Too Much for Your Database Licensing” Standby Server Customers often implement standby server to make sure the application continues to function in case primary server fails. Standby server continuously receives updates from the primary server and will take over the role of primary server in case of failure in the primary server. Following are comparisons of how each vendor supports standby server licensing. SQL Server Customers does not need to license standby (or passive) server provided that the number of processors in the standby server is equal or less than those in the active server. Oracle DB Oracle requires customer to fully license both active and standby servers even though the standby server is essentially idle most of the time. IBM DB2 IBM licensing on standby server is quite complicated and is different for every editions of DB2. For Enterprise Edition, a minimum of 100 PVUs or 25 Authorized User is needed to license standby server.   The following graph compares prices based on a database application with two processors (dual-core) and 25 users with one standby server. [chart snipped]  Note   All prices are based on newest Intel Xeon Nehalem processor database pricing for purchases within the United States and are in United States dollars. Pricing is based on information available on vendor Web sites for Enterprise Edition. Microsoft SQL Server Enterprise Edition 25 users (CALs) x $164 / CAL + $8,592 / Server = $12,692 (no need to license standby server) Oracle Enterprise Edition (base license without options) Named User Plus minimum (25 Named Users Plus per Core) = 25 x 2 = 50 Named Users Plus x $950 / Named Users Plus x 2 servers = $95,000 IBM DB2 Enterprise Edition (base license without feature pack) Need to purchase 125 Authorized User (400 PVUs/100 PVUs = 4 X 25 = 100 Authorized User + 25 Authorized Users for standby server) = 125 Authorized Users x $1,040 / Authorized Users = $130,000  

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  • Can this be considered Clean Code / Best Practice?

    - by MRFerocius
    Guys, How are you doing today? I have the following question because I will follow this strategy for all my helpers (to deal with the DB entities) Is this considered a good practice or is it going to be unmaintainable later? public class HelperArea : AbstractHelper { event OperationPerformed<Area> OnAreaInserting; event OperationPerformed<Area> OnAreaInserted; event OperationPerformed<Area> OnExceptionOccured; public void Insert(Area element) { try { if (OnAreaInserting != null) OnAreaInserting(element); DBase.Context.Areas.InsertOnSubmit(new AtlasWFM_Mapping.Mapping.Area { areaDescripcion = element.Description, areaNegocioID = element.BusinessID, areaGUID = Guid.NewGuid(), areaEstado = element.Status, }); DBase.Context.SubmitChanges(); if (OnAreaInserted != null) OnAreaInserted(element); } catch (Exception ex) { LogManager.ChangeStrategy(LogginStrategies.EVENT_VIEWER); LogManager.LogError(new LogInformation { logErrorType = ErrorType.CRITICAL, logException = ex, logMensaje = "Error inserting Area" }); if (OnExceptionOccured != null) OnExceptionOccured(elemento); } } I want to know if it is a good way to handle the event on the Exception to let subscribers know that there has been an exception inserting that Area. And the way to log the Exception, is is OK to do it this way? Any suggestion to make it better?

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  • Force repaint after button click

    - by coubeatczech
    consider this piece of scala swing code detail.reactions +={ case ButtonClicked(but) = detail.contents += new Label(but.text) detail.background = new java.awt.Color(0,255,0) } the detail is of FlowPanel type. When the button is clicked, the color is instantly repainted, but the Label is not. It gets visible as I click the area. How can I force the detail to repaint its contents after a click?

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  • Keep focus on blur event

    - by Jim
    I am using jquery to keep the focus on a text box when you click on a specific div. It works well in Internet Explorer but not in Firefox. Any suggestions? var clickedDiv = false; $('input').blur(function() { if (clickedDiv) { $('input').focus(); } }); $('div').mousedown(function() { clickedDiv = true; }) .mouseup(function() { clickedDiv = false }); If you need anymore specifics let me know.

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  • input type text and onKeyDown not working under IE

    - by dygi
    Hi there. I am writing a WWW application, it has to run under IE. I have the problem with the code that runs under FF, but i can't get it running under IE. // JS code function test() { if (window.event.keyCpde == 13) window.location.href.ssign("myPage.php"); } I've tried some similar ways around window.location and location.href, also document.location. I've read that IE has problems with that, so i ask for a solution. The goal is, that page reloads after typing in some text into <input type='text' name='item_code' onKeyDown='test()'> and click enter. So the result is similar to pressing submit type button below the text input. Within IE it reloads the same page and nothing happens. In FF it correctly works.

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  • onchange event not fire in google chrome

    - by purnang.advant
    I have a web application build on asp.net, the Textbox onchange event not working in chrome? On page load i wrote this code, textbox1.Attributes.Add("onchange", "SetEditDataFlag();"); SetEditDataFlag() -- it is a javascript function. When I browse the application in chrome then this function is not called when i changed some value on the textbox.Its working properly in IE. Thanks in advance.Please help me.

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