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• NSFetchedResultsControllerDelegate in a second view controller (not firing?)

  - by MTBPatriot

  I am running into an issue similar to the one described here: http://stackoverflow.com/questions/1319940/nsfetchedresultscontrollerdelegate-not-firing (the delegate for my NSFetchedResultsControllerDelegate are not being called on my second view controller) I can't seem to get the proposed solutions to work. I have a main view that loads information from Core Data just fine, but when it pushes a separate controller (and passes the managed object to it), the delegate methods won't fire. I've read about 'mergeChangesFromContextDidSaveNotification' but I don't understand how to synchronize the two manage objects and/or get the delegate methods to be called. Any help would be greatly appreciated. Thank you, Mike

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• Android: custom view onClickEvent with X & Y locations

  - by Martyn

  Hi, I've got a custom view and I want to get the X and Y coordinates of a user click. I've found that I can only get the coordinates from the onTouchEvent and an onClickEvent won't fire if I have an onTouchEvent. Unfortunately the onTouchEventfires when the user drags the screen as well as clicking. I've tried to differentiate between the two, but I still get the code firing when I'm dragging: public boolean onTouchEvent(MotionEvent event) { int action = event.getAction(); if (action == MotionEvent.ACTION_DOWN) { //fires on drag and click I've had a look at this but as I mentioned above I don't think the solution there will work as I can't get the onClick and the onTouch events working at the same time. Maybe I'm doing something wrong in this respect, is there a normal way of dealing with capturing user input on custom events? Should I be able to use the onClick and onTouch events at the same time? Thanks, Martyn

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• JQuery UI Drop Disable on selected elements

  - by Suneth Kalhara

  i want to add drop limit on circles, i wrote a scrit for dragging circles the problem is user can drop circle on another circle, i don't want to allow it, simply i need to revert if the user drag and drop circle on another circle. i write some codes for this. but this not working for me, it always revert the dropped circle. here is my example url http://webxtreams.net/demoprofiles004/circledragger.html here is js code i run on fire bug $(".circle").draggable({ revert: 'invalid' }); $(".circle").droppable({ accept: function(el) { return el.hasClass('.circle'); } }); please help me to do that. have another little question - can we track the reverting event on this, i need to repaint the lines when reverting the circle :)

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• iPhone UIWebView becomeFirstResponder

  - by user505618

  I have an UIWebView with an <input type="text"/> html element in it. I want to focus the input element in the html and show the keyboard on the iPhone programmatically, without tapping the screen. I've tried the following: set the focus from JavaScript (in this case the onFocus JS event will fire but the keyboard won't show up) [webView becomeFirstresponder] (returns NO) set the first subview of the webView to be the firstResponder (returns NO) subclass UIWebView to return YES to canBecomeFirstResponder: (nothing happens) I'm trying to find the solution since yesterday but I couldn't find it. Please help.

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• How can I throttle user login attempts in PHP

  - by jasondavis

  I was just reading this post http://stackoverflow.com/questions/549/the-definitive-guide-to-website-authentication-beta#477585 on Preventing Rapid-Fire Login Attempts. Best practice #1: A short time delay that increases with the number of failed attempts, like: 1 failed attempt = no delay 2 failed attempts = 2 sec delay 3 failed attempts = 4 sec delay 4 failed attempts = 8 sec delay 5 failed attempts = 16 sec delay etc. DoS attacking this scheme would be very impractical, but on the other hand, potentially devastating, since the delay increases exponentially. I am curious how I could implement something like this for my login system in PHP?

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• prototype/javascript - firefox not firing keypress/keydown event unless focus is in textbox

  - by Chloraphil

  The following works fine on IE6, IE7, and chrome. Not working on ff 3.0.7. <html><head> <script src="prototype.js" type="text/javascript" ></script> <script type="text/javascript"> Event.observe(window, 'load', function(){ Event.observe(document.body, 'keydown', myEventHandler); alert('window load'); }); function myEventHandler(evt) { alert(evt); } </script> </head> <body > <input type="text" /><br><br> </body></html> EDIT: By "not working" I mean myEventHandler is not firing in firefox. EDIT2: Furthermore, it works fine when focus is on the input element. I want it fire for all keydowns.

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• Is it Pythonic to have a class keep track of its instances?

  - by Lightbreeze

  Take the following code snippet class Missile: instances = [] def __init__(self): Missile.instances.append(self) Now take the code: class Hero(): ... def fire(self): Missile() When the hero fires, a missile needs to be created and appended to the main list. Thus the hero object needs to reference the list when it fires. Here are a few solutions, although I'm sure there are others: Make the list a global, Use a class variable (as above), or Have the hero object hold a reference to the list. I didn't post this on gamedev because my question is actually more general: Is the previous code considered okay? Given a situation like this, is there a more Pythonic solution?

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• Dynamically bind argument and default value to existing function in Javascript

  - by Scott

  Let's suppose you have some function someFunc() already defined in javascript, that may or may not have its own argument set defined. Is it possible to write another function to add a required argument and set that argument to a default for someFunc()? Something like: var someFunc = function(arg1, arg2 ...){ Do stuff...} var addRequired = function(argName, argValue, fn) { Add the required default arg to a function... } addRequired("x", 20, someFunc); Now someFunc would be defined roughly like so: someFunc = function(x, arg1, arg2...) { x = 20; Do stuff... } What I am really seeking is to not only bind a this value to a function (which I already know how to achieve), but also bind another object reference to that same function (the function not being known ahead of time, as a user will define it, but then the user's code has access to this second object reference for use in their own function). So in my simple example above, the "20" value will actually be an object reference. Thanks for any help you can offer.

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• Web Application within a Web Site in Visual Studio?

  - by Sean

  Visual Studio allows you to make "Web Sites" and "Web Applications", but, inside a project, can you have one within the other? Say I have my website "www.mysite.com" and I have an application called "BudgetCalculator". One the production server, this is supposed to be located at: www.mysite.com/BudgetCalculator And the BudgetCalculator app contains links back to other parts of the website, like "/page1" and "/page2". However in Visual Studio, when they're listed as two different projects, they're on the same level. When I fire up the debugger for the BudgetCalculator app, those links aren't going to point back to the main website, like they should. Is there a way around this?

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• How to avoid using this in a constructor

  - by Paralife

  I have this situation: interface MessageListener { void onMessageReceipt(Message message); } class MessageReceiver { MessageListener listener; public MessageReceiver(MessageListener listener, other arguments...) { this.listener = listener; } loop() { Message message = nextMessage(); listener.onMessageReceipt(message); } } and I want to avoid the following pattern: (Using the this in the Client constructor) class Client implements MessageListener { MessageReceiver receiver; MessageSender sender; public Client(...) { receiver = new MessageReceiver(this, other arguments...); sender = new Sender(...); } . . . @Override public void onMessageReceipt(Message message) { if(Message.isGood()) sender.send("Congrtulations"); else sender.send("Boooooooo"); } } The reason why i need the above functionality is because i want to call the sender inside the onMessageReceipt() function, for example to send a reply. But I dont want to pass the sender into a listener, so the only way I can think of is containing the sender in a class that implements the listener, hence the above resulting Client implementation. Is there a way to achive this without the use of 'this' in the constructor? It feels bizare and i dont like it, since i am passing myself to an object(MessageReceiver) before I am fully constructed. On the other hand, the MessageReceiver is not passed from outside, it is constructed inside, but does this 'purifies' the bizarre pattern? I am seeking for an alternative or an assurance of some kind that this is safe, or situations on which it might backfire on me.

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• Multiple JS effects on one event

  - by Cylindric

  I've got a bunch of Ajax links in a menu that reload a div called #ajaxupdatediv. I want to display another div while that's loading the new content, so how would I fire off both effects? <div id="#ajaxupdatediv"> Content will go here </div> <div id="ajaxloadingdiv"> ...Loading... </div> Here's a bit of the PHP array( 'update' => '#ajaxupdatediv', 'before' => $this->Js->get('#ajaxupdatediv')->effect('fadeOut'), 'complete' => $this->Js->get('#ajaxupdatediv')->effect('fadeIn'), )

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• Sync Framework: SqlSyncProvider ItemConflicting vs ApplyChangeFailed

  - by Paul Smith

  I'm trying to use design a syncronisation application that syncs changes between different SQL Server databases. I came up with a design based around receiving the ItemConflicting event, storing the knowledge associated with the conflict, and resolving all conflicts off-line. However, it seems that I can only get the ApplyChangeFailed event to fire. Is there some reason why SqlSyncProvider does not use the ItemConflicting event? Am I just hooking up to the event wrongly? The reason I care is that the ItemConlficting event allows me to simply log the conflict and continue with the rest of the synchronisation in a way that I can't seem to achieve with the ApplychangeFailed event.

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• WPF Visual States and the transitions between them

  - by Mark

  I'm trying to define many different states in my app (around 7 in my case) and I have defined each one of them with a "Default Transition" of zero seconds, but the animation that accompanies each state goes for 1 second. When I fire up my app I have a button than goes through the states one by one, when I go "State1" - "State2" it looks perfect, but when I tell my app (which should be in State2 now) to go to "State3" it reverts all the objects in my scene back to their base state, and then animates to "State3", why doesnt it go from "State2" to "State3". I was hoping to only define each state's end position without defining a starting position as this would really take a long time to do. Can this be done? Any examples? Cheers, Mark

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• Javascript: Do processing when user has stopped typing

  - by Midhat

  I have a text box on a web page, whose value I want to send to a XMLHttpRequest. Now I want the user to just type the value, without pressing a button. But If i just send the request int he keyboard events, it will fire every time a key is pressed. So basically I want something liek this function KeyUpEvent() { if (user is still typing) return; else do processing } It would be great if the solution could come from plain javascript or mootools. I dont want to use any other library.

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• Using one sqlconnection/sqlcommand through 2 DB-bound methods

  - by dotnetdev

  I have a class with a method which gets data from a database through a SELECT stored proc. This method uses a SqlDbReader by returning ExecuteReader() on a SqlCommand. The connection and everything is made in this method, with fields (such as connection string) set as class level fields. I now need to populate an array based on the results of this query (so the columns of each row will go into the array with its own index). However, this query will not select all of the data from one table which is involved. I can write the queries to get what I need, but how can I use one connection throughout the class? If I instantiate the connection object and call Open() in the constructor, I get an exception @ runtime. I'm hoping for something like this: // At class level: sqlconn.Open(); // sqlcommand set up Method() { // Fire stored proc // Insert results in a collection } Method2() { // Pass same collection in (use same one), // Add new row columns into same collection } How can I do this with strict performance in mind? Thanks

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• UIWebViewNavigationTypeLinkClicked event not getting fired for certain links

  - by userlite

  Hi, I am using a UIWebView as an embedded browser within my iphone app. I am using the shouldStartLoadWithRequest function to handle UIWebViewNavigationTypeLinkClicked events for links clicked by a user. It is working as expected for a number of sites, but not for all. For example: when I click on any of the links on website http://www.foxnews.mobi, the UIWebViewNavigationTypeLinkClicked event is not getting fired. Same thing happens for some other sites. I read somewhere that links with blank target do not fire the event, however this is not the cause of the problem in my case. Any help is appreciated. Thanks.

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• calling facebox in a google maps balloon

  - by XGreen

  Hi Guys, I have a gmap balloon. var marker = createMarker(point, '<div style="width:240px" id="mapsball"><h2>Splash of London</h2><img src="_assets/images/themes/shop.jpg" id="mapThumb" width="100" align="right" /><p>110-112 Hoxton Street</p><p>London</p><p>N1 6SH</p><\/div>'); map.addOverlay(marker, icon); and a facebox attached to the click event of the image ('#mapsball') which opens it in a facebox $(function() { $("body").delegate("#mapThumb", "click", function(){ jQuery.facebox('<img src="_assets/images/themes/shop.jpg" align="right"/>'); }); }); this works fine in ff and safari and chrome. but doesn't fire in ie. I don't get a js error in ie so I am assuming it just doesn't get binded. any help would be greatly appreciated.

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• c# compact-framework textbox mouseleave

  - by arnoldino

  hello, I would like to leave the textbox via code. when user clicks in the textbox, and types in something , and then the user will click outside the textbox. on the screen there are just labels. only this one textbox is on the form. my problem is, that the textbox does not lost focus when I click everywhere on the screen. the texbox it still has the focus. this textbox is used to filter a list, built from labels. the complete story is: - I have no mainmenu on the screen, so the Sip icon is not visible - user clicks in the textbox, and i bring up the SIP, in the textbox.GotFocus event - user types in some letters, the list is filtered - if user clicks away, the SIP disappears (textbox.lostfocus), but the textbox still has the focus, I mean the cursor remains in the textbox - when user wants to type some other letters for filtering, it clicks in the textbox, but GotFocus does not fire how can I make the texbox to loose the focus?

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• Execute an autocommand only once

  - by Andrej M.

  I have an issue with using GVim on Windows. I have set up the following in my .vimrc: if has("gui_running") autocmd VIMEnter * :source C:/session.vim endif Unfortunately this creates a problem. If I'm a the top of the file and try to move up a line (k), the screen flashes. If I hold the key for just a second it will flash a few dozen times, it is really nasty too look at. I've tried using GUIEnter instead but I got the same results. The docs mention that I can fire an autocommand only once, but I couldn't figure out the exact syntax. Care to help?

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• Ms Access Save record in subform

  - by LanguaFlash

  I have a main form with a tab control containing multiple subforms. I need to be sure that the data in a subform is saved when the user switches tabs. The problem is that DoCmd.RunCommand acCmdSaveRecord seems only applies to the current form so it doesn't save the data in the subform. I have tried different events on the subform such as deactivate, OnLostFocus etc but they don't fire until another field somewhere else gets the focus. The ideal solution would seem to be to put something on the OnChange event of the tab control to be sure that all the data is saved. That is my question, how to do I save the record in a subform?

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• Raise the time-out for a single webservice

  - by Carra

  My web configuration looks as follows: <system.web> <compilation debug="false"/> <httpRuntime executionTimeout="90"/> </system.web> This is fine for most webservices but one webservice has a query that is running a very long (5 minutes) time and will be stopped before it has finished. Is it possible to set the runtime to 5 minutes for this webservice alone? I've thought about running the database query async (fire and forget) but it doesn't seem possible with sybase/oracle through ODBC.

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• jquery mouseout problem

  - by From.ME.to.YOU

  hello my html <div id="parent"> <div id="child">cx</div> </div> when i use jquery $('#parent').mouseout(function(){ //something here }); i wonder why when my mouse enter the child div the function fires. i'm still inside parent div. i want that mouseout function to fire only when i leave the parent div not when i'm on any child div http://jsbin.com/esiju/ << example Cheers

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• What might cause SQL error Cannot find the object "dbo.InspectionEvents" because it does not exist o

  - by mrtrombone

  Hi My ASP.Net app is periodically getting the error 'Cannot find the object dbo."XXXX" because it does not exist or you do not have permissions' when it tries to execute a specific stored procedure that writes to the database. I have seen a few forum posts about this issue but the strange thing is that the method works fine almost all of the time, just every now and then I see it in my error logs. Can anyone tell me why this might works Ok most of the time but occassionally fire the error? Application is C# using Enterprise Library 4.1 Data Access. Database is SQL Server 2005 Cheers

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• How to handle empty return from getJSON

  - by Gee

  Alright so I have a php script which gets results from a DB, and to get those results I'm using a jQuery script to pull the results via getJSON. It works perfectly but now I want to do something if the php script returns no results (empty). I tried: $.getJSON('path/to/script'), {parameter:parameter}, function(data){ if (data) { alert('Result'); } else { alert('Empty); } }); But it's no good. I've tried different things like if (data.length) but still nothing. I've noticed that if there is no returned data the callback will never fire at all. So if that's the case, how do I handle a empty return?

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• Modify EXE to stop launching firefox

  - by Random Joe

  I'm using a wireless modem program from my ISP. This program automatically disconnect when it detects the line is idle. It does so in 2-5 minutes of idle time. Whenever I reconnect, It will automatically fire up my default browser to the ISP portal. I DID NOT pay them to shove their web portal in my face 50 times a day. The ISP provides no options for disabling this behavior. Can someone please show me how to hex edit the EXE program to stop it from annoying the hell out of me?

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