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• XPages Extension Library - onShow event for xe:djxmHeading

  - by Martin Perrie

  I am trying to add an onShow event to a Mobile Page Heading as per p. 326 oF the XPages Extension Library book. My code is as follows :- <xe:djxmHeading id="djxmHeading1" back="All Areas" moveTo="byArea"> <xe:this.label><![CDATA[#{javascript:param.get("Rep")}]]></xe:this.label> <xp:this.onShow> <![CDATA[#{javascript:sessionScope.put("RepName", param.get("Rep"))}]]> </xp:this.onShow> </xe:djxmHeading> which looks similar to the example in the book. But I'm getting the following error: Unknown property this.onShow. It is not defined on tag xe:djxmHeading. Any ideas what I'm doing wrong? Thanks

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• Is there a way to automatically uppercase comments in Xcode?

  - by Martin

  Is there a way to automatically uppercase comments in Xcode? Either when typing individual comments or globally after the fact?

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• Insert multiple values using INSERT INTO

  - by Ben McCormack

  In SQL Server 2005, I'm trying to figure out why I'm not able to insert multiple fields into a table. The following query, which inserts one record, works fine: INSERT INTO [MyDB].[dbo].[MyTable] ([FieldID] ,[Description]) VALUES (1000,N'test') However, the following query, which specifies more than one value, fails: INSERT INTO [MyDB].[dbo].[MyTable] ([FieldID] ,[Description]) VALUES (1000,N'test'),(1001,N'test2') I get this message: Msg 102, Level 15, State 1, Line 5 Incorrect syntax near ','. When I looked up the help for INSERT in SQL Sever Management Studio, one of their examples showed using the "Values" syntax that I used (with groups of values in parentheses and separated by commas). The help documentation I found in SQL Server Management Studio looks like it's for SQL Server 2008, so perhaps that's the reason that the insert doesn't work. Either way, I can't figure out why it won't work.

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• Recommendations for easy jQuery Autocomplete using AJAX that will set form value based on selected t

  - by Ben Dauphinee

  I am looking for suggestions on the easiest to set up and use AJAX Autocomplete plugin that will use JSON key/value pairs. I want a plugin that supports setting the form value to the key of the name selected. I have been working with jQuery UI Autocomplete, but it is a total pain in the rear to get this working. Does anyone know of anything that actually supports this out of the box, or have a thread or page where this is already detailed?

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• Heroku powered private restricted beta

  - by Ben Sand

  I'd like to run an app in a restricted private beta on heroku. We're changing the app regularly and haven't done a security audit. To stop anyone exploiting stuff, we'd like to lock down the whole site, so you need a password to access anything. Ideally similar to using .htaccess and .htpasswd files to lock an entire site on an Apache server. Is there a simple one shot way to do this for a heroku hosted app?

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• ASMX Web Service online works when all of the code is in one file without code-behind

  - by Ben McCormack

  I have an ASMX Web Service that has its code entirely in a code-behind file, so that the entire contents of the .asmx file is: <%@ WebService Language="C#" CodeBehind="~/App_Code/AddressValidation.cs" Class="AddressValidation" %> On my test machine (Windows XP with IIS 5), I set up a virtual directory just for this ASP.NET 2.0 solution and everything works great. All my code is separated nicely and it just works. However, when we deployed this solution to our Windows Server 2003 development environment, we noticed that the code only compiled when all of the code was dropped directly into the .asmx file, meaning that the solution didn't work with code-behind. We can't figure out why this is happening. One thing that's different about our setup in our development environment is that instead of creating a separate virual directory just for this solution, we dropped it into an existing directory that runs a classic ASP application. So here we have a folder with an ASP.NET 2.0 application within a directory that contains a classic ASP application. Granted, everything in the ASP.NET 2.0 application works if all of the code is within the .asmx file and not in code-behind, but we'd really like to know why it's not recognizing the code-behind files and compiling it correctly.

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• When should I be cautious using data binding in .NET?

  - by Ben McCormack

  I just started working on a small team of .NET programmers about a month ago and recently got in a discussion with our team lead regarding why we don't use databinding at all in our code. Every time we work with a data grid, we iterate through a data table and populate the grid row by row; the code usually looks something like this: Dim dt as DataTable = FuncLib.GetData("spGetTheData ...") Dim i As Integer For i = 0 To dt.Rows.Length - 1 '(not sure why we do not use a for each here)' gridRow = grid.Rows.Add() gridRow(constantProductID).Value = dt("ProductID").Value gridRow(constantProductDesc).Value = dt("ProductDescription").Value Next '(I am probably missing something in the code, but that is basically it)' Our team lead was saying that he got burned using data binding when working with Sheridan Grid controls, VB6, and ADO recordsets back in the nineties. He's not sure what the exact problem was, but he remembers that binding didn't work as expected and caused him some major problems. Since then, they haven't trusted data binding and load the data for all their controls by hand. The reason the conversation even came up was because I found data binding to be very simple and really liked separating the data presentation (in this case, the data grid) from the in-memory data source (in this case, the data table). "Loading" the data row by row into the grid seemed to break this distinction. I also observed that with the advent of XAML in WPF and Silverlight, data-binding seems like a must-have in order to be able to cleanly wire up a designer's XAML code with your data. When should I be cautious of using data-binding in .NET?

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• Resources how to architect a iPhone application?

  - by Frank Martin

  What resources can you recommend for learning how to architect a iPhone application? Background of the question is that most of the resources explain the usage of a single class or concept (and i appreciate that a lot to learn something about the specific topic) but as far as i can see they lack unfortunately to describe how to put things together for typical real world applications.

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• Batch/Powershell to determine network ID

  - by ben

  i need to write a script that allows a network drive to be attached on a certain network

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• Summary of the last decade of garbage collection?

  - by Ben Karel

  I've been reading through the Jones & Lin book on garbage collection, which was published in 1996. Obviously, the computing world has changed dramatically since then: multicore, out-of-order chips with large caches, and even larger main memory in desktops. The world has also more-or-less settled on the x86 and ARM microarchitectures for most consumer-facing systems. How has the field of garbage collection changed since the seminal book was published?

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• JavaScript distributed computing project

  - by Ben L.

  I made a website that does absolutely nothing, and I've proven to myself that people like to stay there - I've already logged 11+ hours worth of cumulative time on the page. My question is whether it would be possible (or practical) to use the website as a distributed computing site. My first impulse was to find out if there were any JavaScript distributed computing projects already active, so that I could put a piece of code on the page and be done. Unfortunately, all I could find was a big list of websites that thought it might be a cool idea. I'm thinking that I might want to start with something like integer factorization - in this case, RSA numbers. It would be easy for the server to check if an answer was correct (simply test for modulus equals zero), and also easy to implement. Is my idea feasible? Is there already a project out there that I can use?

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• Remove gap in wordpress posts in IE

  - by Martin Ingolf

  I'm using a modified version of Modern Clix by Rodrigo Galindez on my website, and I've encountered a problem with gaps on top of every one of my posts in IE. The gap is the size of my left-hand sidebar and doesn't appear in firefox. Ex.: http://martiningolf.dk/?page%5Fid=273 If anyone knows how to solve this problem, It'd make me happy.

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• compare function for upper_bound / lower_bound

  - by Martin Beckett

  I want to find the first item in a sorted vector that has a field less than some value x. I need to supply a compare function that compares 'x' with the internal value in MyClass but I can't work out the function declaration. Can't I simply overload '<' but how do I do this when the args are '&MyClass' and 'float' ? float x; std::vector< MyClass >::iterator last = std::upper_bound(myClass.begin(),myClass.end(),x);

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• Debugging unexpected error message - possible memory management problem?

  - by Ben Packard

  I am trying to debug an application that is throwing up strange (to my untutored eyed) errors. When I try to simply log the count of an array... NSLog(@"Array has %i items", [[self startingPlayers] count]); ...I sometimes get an error: -[NSCFString count]: unrecognized selector sent to instance 0x1002af600 or other times -[NSConcreteNotification count]: unrecognized selector sent to instance 0x1002af600 I am not sending 'count' to any NSString or NSNotification, and this line of code works fine normally. A Theory... Although the error varies, the crash happens at predictable times, immediately after I have run through some other code where I'm thinking I might have a memory management issue. Is it possible that the object reference is still pointing to something that is meant to be destroyed? Sorry if my terms are off, but perhaps it's expecting the array at the address it calls 'count' on, but finds another previous object that shouldn't still be there (eg an NSString)? Would this cause the problem? If so, what is the most efficient way to debug and find out what is that address? Most of my debugging up until now involves inserting NSLogs, so this would be a good opportunity to learn how to use the debugger.

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• How to Canonicalize a Stax XML object.

  - by Enrique San Martín

  Hello, i want to Canonicalize a Stax object, the program it's doing it with DOM, but dom can't manage big XML documents (like 1GB), so STAX it's the solution. The Code that i have it's: File file=new File("big-1gb.xml"); org.apache.xml.security.Init.init(); DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance(); DocumentBuilder documentBuilder = dfactory.newDocumentBuilder(); Document doc = documentBuilder.parse(file); Canonicalizer c14n = Canonicalizer.getInstance("http://www.w3.org/TR/2001/REC-xml-c14n-20010315"); outputBytes = c14n.canonicalizeSubtree(doc.getElementsByTagName("SomeTag").item(0)); The idea it's do the code below with Stax... Thx :)

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• Is Win32_PerfFormattedData_PerfDisk_PhysicalDisk missing from WMI in Vista?

  - by Martin

  From what I understand, the following script should work in Windows XP and higher, but it doesn't work for me in Vista Business 32-bit Service Pack 2. Thus far I have been very unsuccessful googling for information about this performance class. strComputer = "." Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2") Set colApps = objWMIService.ExecQuery("Select * from Win32_PerfFormattedData_PerfDisk_PhysicalDisk") For Each objApp in colApps Wscript.Echo objApp.Caption Next Does this WMI class simply not exist in Vista? If it is just me, is there a way to fix WMI? I have already tried running winmgmt /resetrepository and winmgmt /resyncperf and neither helps.

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• "Invalid signature": oAuth provider with Django-piston

  - by Martin Eve

  Hi, I'm working with django-piston to attempt to create an API that supports oAuth. I started out using the tutorial at: http://blog.carduner.net/2010/01/26/django-piston-and-oauth/ I added a consumer to piston's admin interface with key and secret both set to "abcd" for test purposes. The urls are successfully wired-up and the oAuth provider is called. However, running my get request token tests with tripit (python get_request_token.py "http://127.0.0.1:8000/api" abcd abcd), I receive the following error: Invalid signature. Expected signature base string: GET&http%3A%2F%2F127.0.0.1%3A8000%2Fapi%2Foauth%2Frequest_token%2F&oauth_consumer_key%3Dabcd%26oauth_nonce%3D0c0bdded5b1afb8eddf94f7ccc672658%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1275135410%26oauth_version%3D1.0 The problem seems to lie inside the _check_signature method of Piston's oauth.py, where valid_sig = signature_method.check_signature(oauth_request, consumer, token, signature) is returning false. I can't, however, work out how to get the signature validated. Any ideas? -----Update----- If I remove the test consumer from piston's backend, the response returned is correctly set to "Invalid consumer", so this lookup appears to be working.

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• I have a page that contains both Flex and HTML at the same time. How do I make it cross resolution?

  - by ben

  Hey guys, In one of my pages, I use a Flex 4 app in a column on the left, and then normal HTML in a column to the right. Is there anyway I can make it so that the ratio between the two columns is the same no matter the resolution? Thanks for reading.

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• Resizing a UIButton programmatically by maintaining a margin

  - by Oscar Del Ben

  Hello, I'm adding a UIButton to a tableView footer programmatically. This button has a left and right margin that is equal to the tableView margin: UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; deleteButton.frame = CGRectMake(10, 60, 300, 34); deleteButton.autoresizingMask = UIViewAutoresizingFlexibleWidth I'm adding autoresizingMask because I want to support rotation. However, it does not work as I want, as the button stretches all the way down to the right, as shown by the image below. Any idea how to fix it? If I remove the autosizing property then the margin is correct.

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• How to use xcode compiler warnings to determine minimum IOS deployment target

  - by Martin Bayly

  I'm building an iOS app using Xcode 3.2.5 with the Base SDK set to iOS 4.2 I know I've used some api's from 4.0 and 4.1 but not sure about whether I actually require 4.2. According to the iOS Development Guide, "Xcode displays build warnings when it detects that your application is using a feature that’s not available in the target OS release". So I was hoping to use the compiler warnings to derive my minimum OS requirement. However, even when I set my iOS Deployment Target to iOS 3.0, I still don't get any compiler warnings. I must be doing something wrong, but not sure what? Can anyone confirm that they get compiler warnings when the iOS deployment target is less than the base SDK and the code uses base SDK functions? Or do the compiler warnings only show if you link a framework that didn't exist in the iOS deployment target version?

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• Best way to implement a 404 in ASP.NET

  - by Ben Mills

  I'm trying to determine the best way to implement a 404 page in a standard ASP.NET web application. I currently catch 404 errors in the Application_Error event in the Global.asax file and redirect to a friendly 404.aspx page. The problem is that the request sees a 302 redirect followed by a 404 page missing. Is there a way to bypass the redirect and respond with an immediate 404 containing the friendly error message? Does a web crawler such as Googlebot care if the request for a non existing page returns a 302 followed by a 404?

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• How to render the properties of the view model's base class first when using ViewData.ModelMetadata.

  - by Martin R-L

  When I use the ViewData.ModelMetadata.Properties in order to loop the properties (with an additional Where(modelMetadata => modelMetadata.ShowForEdit && !ViewData.TemplateInfo.Visited(modelMetadata))), and thereby create a generic edit view, the properties of the view model's base class are rendered last. Is it possible to use a clever OrderBy() or is there another way to first get the properties of the base class, and then the sub class'? Reverse won't do the trick since the ordering of each class' properties is perfectly fine. A workaround would of course be composition + delegation, but since we don't have mixins, it's too un-DRY IMHO, why I seek a better solution if possible.

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• Parsec Haskell Lists

  - by Martin

  I'm using Text.ParserCombinators.Parsec and Text.XHtml to parse an input and get a HTML output. If my input is: * First item, First level ** First item, Second level ** Second item, Second level * Second item, First level My output should be: <ul><li>First item, First level <ul><li>First item, Second level </li><li>Second item, Second level </li></ul></li><li>Second item, First level</li></ul> I wrote this, but obviously does not work recursively list= do{ s <- many1 item;return (olist << s) } item= do{ (count 1 (char '*')) ;s <- manyTill anyChar newline ;return ( li << s) } Any ideas? the recursion can be more than two levels Thanks!

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• Has anyone noticed that a WPF file dialog will pass a click through to the UI when double clicking t

  - by Ben

  I have some buttons on my WPF UI and I also need to choose files from time to time. I kept noticing strange problems where when I double-click an item in the file dialog, a button on the main UI would also get clicked. After experimenting, it seems that if you line up an item in the file dialog with a button behind it on the main UI and double click to select the file, it will single-click the button behind it as well. Has anyone else noticed this, or is it just a freak bug with the way I have my UI laid out?

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• Traceroute comparison and statistics

  - by ben-casey

  I have a number of traceroutes that i need to compare against each other but i dont know the best way to do it, ive been told that hash maps are a good technique but i dont know how to implement them on my code. so far i have: FileInputStream fstream = new FileInputStream("traceroute.log"); // Get the object of DataInputStream DataInputStream in = new DataInputStream(fstream); BufferedReader br = new BufferedReader(new InputStreamReader(in)); String strLine; // reads lines in while ((strLine = br.readLine()) != null) { System.out.println(strLine); } and the output looks like this: Wed Mar 31 01:00:03 BST 2010 traceroute to www.bbc.co.uk (212.58.251.195), 30 hops max, 40 byte packets 1 139.222.0.1 (139.222.0.1) 0.873 ms 1.074 ms 1.162 ms 2 core-from-cmp.uea.ac.uk (10.0.0.1) 0.312 ms 0.350 ms 0.463 ms 3 ueaha1btm-from-uea1 (172.16.0.34) 0.791 ms 0.772 ms 1.238 ms 4 bound-from-ueahatop.uea.ac.uk (193.62.92.71) 5.094 ms 4.451 ms 4.441 ms 5 gi0-3.norw-rbr1.eastnet.ja.net (193.60.0.21) 4.426 ms 5.014 ms 4.389 ms 6 gi3-0-2.chel-rbr1.eastnet.ja.net (193.63.107.114) 6.055 ms 6.039 ms * 7 lond-sbr1.ja.net (146.97.40.45) 6.994 ms 7.493 ms 7.457 ms 8 so-6-0-0.lond-sbr4.ja.net (146.97.33.154) 8.206 ms 8.187 ms 8.234 ms 9 po1.lond-ban4.ja.net (146.97.35.110) 8.673 ms 6.294 ms 7.668 ms 10 bbc.lond-sbr4.ja.net (193.62.157.178) 6.303 ms 8.118 ms 8.107 ms 11 212.58.238.153 (212.58.238.153) 6.245 ms 8.066 ms 6.541 ms 12 212.58.239.62 (212.58.239.62) 7.023 ms 8.419 ms 7.068 ms what i need to do is compare this trace against another one just like it and look for the changes and time differences etc, then print a stats page.

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