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• A very weird problem with texbox control in .net

  - by Kazoom

  Well i know textbox is a very simple user control, perhaps the first input control ever made. I have been facing a very frustrating problem with this simple control. I programatically add a textbox in my user control. From ui i am able to edit it like a normal textbox. however, i am not able to read the user inputed value in the program. my program all the time sees the old value with which my text box was initialized. i textchange event getting triggered but the value never gets updated. This seemingly looks to be some innocuous bug in the code, but the program is very simple and it does not seem to be having any bug. Any guidelines on this issue?

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• Someone is using the struct name as a variable name too. What does the code really say? (c++)

  - by EvilTeach

  This morning we found an old chunk of code that was causing a library call to crash. struct fred { int a; int b; int c; }; fred fred[MAX_SIZE+1]; memset( fred, 0, sizeof(fred) * MAX_SIZE+1 ); It appears that the sizeof(fred) may have been the full array size, rather than the structure size, as it was overwriting a great deal of memory. The fact that it compiled without warning on several different systems seemed odd. Is there a correct semantic for this case where the type and variable name are colliding? or is this some sort of undefined behavior? or just a defect? I haven't been been clever enough to find anything on Google or our language help. Thanks Evil

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• How do I bring Set Focus of MDI Child Window using UIAutomation

  - by Scott Ferguson

  We have an old legacy application we need to automate. It uses MDI Windows. We're using UIAutomation and I can succesfully get the appropriate AutomationElement for each MDI Child window. What I cannot do is bring that element into focus. Here is some example code that I tried, that fails: var desktop = AutomationElement.RootElement; var dolphin = desktop.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Dolphin for Windows", PropertyConditionFlags.IgnoreCase)); dolphin.SetFocus(); var workspace = dolphin.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Workspace", PropertyConditionFlags.None)); var childWindow = workspace.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Sharp ")); childWindow.SetFocus(); The last line in this code fails with System.InvalidOperationException Experimenting, I tried finding a control on the childWindow, and calling SetFocus on it. It DID correctly set the focus on the right control, but it did not bring the MDI window to the foreground. Any ideas?

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• how to specify which port to use using INET in perl

  - by alex

  Hi: I am using perl INET to create inter-process communication in my program. I need to use a specific port number in my TCP client. I was following the example in Perl doc, but it doesn't work. Here is my code: old code(working): tx_socket = new IO::Socket::INET-new('127.0.0.1:8001') || die "Can't connect to 127.0.0.1:8001 : $!\n"; new code(not working): tx_socket = new IO::Socket::INET-new('127.0.0.1:8001', LocalPort=9000 ) || die "Can't connect to 127.0.0.1:8001 : $!\n"; Does anyone know what's wrong? Thanks

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• Image selector/picker

  - by MrThomas

  Using Ruby on Rails what steps can I take to create a image picker. This is a image object which I can use all over my app: Using paperclip and a polymathic association making images available to all other models. I wish to list the images in each model and chose which of them is associated to a individual new or old record. for example: I could use the image as a sidebar image or a banner or advert image etc. I would be great full for any help. Thanks Dan

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• How do I upgrade my MacPorts Perl installation?

  - by sfactor

  I have installed MacPorts in my MacBook Pro with Snow Leopard. I hadn't explicitly installed perl there but I guess it either came installed with the default macports install or was installed as a dependency by any other port I installed. I want to upgrade the Perl v5.8.9 there with the latest stable Perl version. Whichever it may be currently (I see it is 5.12.2). So, my question is simply how do I do a complete replacement of the old Perl with the new in macports. Will sudo port upgrade perl5 work or do I need to do something else as well. I just wanted to make sure this was the right command so as to avoid screwing up my macports install.

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• Is this code thread safe?

  - by Shawn Simon

  ''' <summary> ''' Returns true if a submission by the same IP address has not been submitted in the past n minutes. ''' </summary> Protected Function EnforceMinTimeBetweenSubmissions() As Boolean Dim minTimeBetweenRequestsMinutes As Integer = 0 Dim configuredTime = ConfigurationManager.AppSettings("MinTimeBetweenSchedulingRequestsMinutes") If String.IsNullOrEmpty(configuredTime) Then Return True If (Not Integer.TryParse(configuredTime, minTimeBetweenRequestsMinutes)) _ OrElse minTimeBetweenRequestsMinutes > 1440 _ OrElse minTimeBetweenRequestsMinutes < 0 Then Throw New ApplicationException("Invalid configuration setting for AppSetting 'MinTimeBetweenSchedulingRequestsMinutes'") End If If minTimeBetweenRequestsMinutes = 0 Then Return True End If If Cache("submitted-requests") Is Nothing Then Cache("submitted-requests") = New Dictionary(Of String, Date) End If ' Remove old requests. Dim submittedRequests As Dictionary(Of String, Date) = CType(Cache("submitted-requests"), Dictionary(Of String, Date)) Dim itemsToRemove = submittedRequests.Where(Function(s) s.Value < Now).Select(Function(s) s.Key).ToList For Each key As String In itemsToRemove submittedRequests.Remove(key) Next If submittedRequests.ContainsKey(Request.UserHostAddress) Then ' User has submitted a request in the past n minutes. Return False Else submittedRequests.Add(Request.UserHostAddress, Now.AddMinutes(minTimeBetweenRequestsMinutes)) End If Return True End Function

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• ESRI frameworks: java vs javascript

  - by Luke

  I'm about to develop a web mapping application with ESRI Products like ArcGIS Server and Image Server. I can't find a good comparison between the Java Web ADF and the Javascript Framework. They're of course different because one is a full environment and the other is only client side but it's much more concise and the step to start is minimal. Another problem is that the Java Web ADF is not compatible with our current application server (JBoss 4.2.2) and require an old 4.0.2 version. Someone out there has experience that can help me? Many thanks.

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• enums in C# - assignment

  - by Zka

  How does one do this in c#? Let's say that myclass has : private enum Days{}; 1) How does one add data to the enum inside the myclass with the help of the constructor? As in : myclass my = new myclass(Monday,Friday); so that the enum inside the class gets the "Monday, Friday" properties. 2) Can one also make a property for an enume inside the class once it is initialized ? For example : my.Days = new enum Days(Tuesday); //where the old settings are replaced.

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• How does a virtual machine work?

  - by Martin

  I've been looking into how programming languages work, and some of them have a so-called virtual machines. I understand that this is some form of emulation of the programming language within another programming language, and that it works like how a compiled language would be executed, with a stack. Did I get that right? With the proviso that I did, what bamboozles me is that many non-compiled languages allow variables with "liberal" type systems. In Python for example, I can write this: x = "Hello world!" x = 2**1000 Strings and big integers are completely unrelated and occupy different amounts of space in memory, so how can this code even be represented in a stack-based environment? What exactly happens here? Is x pointed to a new place on the stack and the old string data left unreferenced? Do these languages not use a stack? If not, how do they represent variables internally?

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• My presentation layer does not match my model layer even though I have no animations

  - by Kevin McCullough

  On iPhone I have a CALayer that I animate via Core Animation. Then at some point I change view controllers. I then return to the view controller with the CALayer and in viewWillAppear: I set the frame and position properties on my layer to move it back to its starting point. Setting these properties changes the model layer but the presentation layer still has the old values and its presentation layer does not update until the next animation I play. In the CA Programming guide it says "You can query an instance of CALayer for its corresponding presentation layer while an animation transaction is in process." Which, to me, implies that the presentation layer should only be different from the model layer during an animation. But there are no animations currently running. I even used kCATransactionDisableActions to ensure that when I set the position property an implicit animation is not started. Does anyone know why my presentation and model layers are out of sync? Thanks.

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• Experience with laptop Keyboards?

  - by Omar Kooheji

  I'm thinking of retiring my 3 year old HP laptop I want to know which manufacturor makes laptops with the best Keyboards? I loved my Full width keyboard, with numberic pad on my HP, I've tried a a few laptop keyboards in shops and have found none of them satisfying to type with. What I want is something that will maximise my typing comfort. All the ones I see in shops seem to be designed to look good but feel horible. The keys are either too shiny, too small, or don't press down enough. All I want it a keyboard thats comfortable, I've been given a Lenovo laptop by my work and I've had to resort to pluging in a USB keyboard while I work, which is less than ideal.

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• PPP connection with RAS dialer in C++

  - by user312054

  I have a windows mobile application that is using Windows CE 5.0. I have been informed by the people supplying the hardware for the unit that I need to create a socket, which I have done successfully, and then dial out to the internet with a PPP connection with a RAS dialer connection. Our old code uses an APN to dial out so I need to create the above connection with an APN. I am having trouble finding examples of this. Can someone point me to some examples of this situation?

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• Things to do with supercomputer.

  - by BigBoss

  HI, Guys I wanted to create SuperComputer out of my 3 old pcs soon. There are bunch of techniquies available on net for doing this and I will be using one of them. What I would like to get suggestion is what is next !! Many of them suggest some mathematical calculation or some graphic image rendering, which still is to me so boring and not inspiring at all. Please try to suggest something out of box. I would post results of it when I am done. Cheers !

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• Java 'Prototype' pattern - new vs clone vs class.newInstance

  - by Guillaume

  In my project there are some 'Prototype' factories that create instances by cloning a final private instance. The author of those factories says that this pattern provides better performance than calling 'new' operator. Using google to get some clues about that, I've found nothing really relevant about that. Here is a small excerpt found in a javdoc from an unknown project javdoc from an unknown project Sadly, clone() is rather slower than calling new. However it is a lot faster than calling java.lang.Class.newInstance(), and somewhat faster than rolling our own "cloner" method. For me it's looking like an old best practice of the java 1.1 time. Does someone know more about this ? Is this a good practice to use that with 'modern' jvm ?

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• Fluent-NHibernate - Component property attributes ignored by Convention

  - by BobTodd

  I have a component with a number of properties that have various attributes Normally when these attributes are added to a plain old domain object they are picked up by my custom AttributeConventions. For the Component properties they are not. Is there some extra wiring needed for these? e.g. public class Component { [Length(Max=50)] public virtual string Name {get; set;} } public class MyClass { public virtual Component Component {get; set;} [Length(Max=50)] public virtual string Color {get; set;} } I get a table MyClass with columns Color & ComponentName Color is an nvarchar(50) whilst ComponentName is an nvarchar(255) (the default)

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• About Android IDE

  - by licorna

  Right now I'm using Eclipse for Android development, but my computer is kind of old and I like responsive development environments. I've tried using VIM, Emacs and TextMate but I'm missing every feature in the Eclipse Android plugin: Auto generate R class Check for errors & warnings on code Auto completion Deploy to device or emulator Integrate with DDMS The list goes to infinity ... I know Eclipse is the best for what I want to do, but if I want to use any editor, what do you recommend to achieve a not so frustrating Android development experience?

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• Sqs vs SqsGen2 using RightScale right_aws GEM

  - by Fitter Man

  I'm trying to use the right_aws (1.10.0) GEM with Rails, and I've reduced my problem to a 3-line irb session. The following works require 'rubygems' require 'right_aws' sqs = RightAws::Sqs.new("xxxxxxxxxxxxxxx", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx") while this fails require 'rubygems' require 'right_aws' sqs = RightAws::SqsGen2.new("xxxxxxxxxxxxxxx", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx") with NameError: uninitialized constant RightAws::SqsGen2. I see the class definition in the GEM source, the documentation is old but seems accurate, but I can't figure out what I'm doing wrong. And while you're at it, is there any reason if I'm building something new, I'd want to use the older interface?

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• newbie trying to write url rewite in .htaccess file

  - by user297975

  My site was under example.com/waha/ Now I move the site right under the root example.com I want to 301 redirect all the old links like example.com/waha/notice/5803 to example.com/notice/5803 How can I do it? My current .htaccess file is below. <IfModule mod_rewrite.c> RewriteEngine On # NOTE: change this to your actual StatusNet path; may be "/". RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule (.*) index.php?p=$1 [QSA,L] </IfModule> <FilesMatch "\.(ini)"> Order allow,deny </FilesMatch> Options -Indexes

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• Access to variables in an asp.net user control vs an include file

  - by user204588

  I've asked this question before but couldn't get the answer I was looking for so I'm going to try it again. I'm translating pages from old asp to asp.net and I don't want to do this any other way so I really just want to know if this can be done. In asp, I'd assign a variable on one page <% myVar = "something" %> I could assign many variables here and then use an include <!--#include file="Test2.aspx"--> then in test2 file, I could access all the variables without having to pass all the variables into the control or declaring them again, like <% myVar = "something else" %> I want to do this the dot net way but I have some thirty variables on the page and i don't want to pass a bunch into the user control and I don't want to have to keep declaring the same variables. All I really want to know is if there is some way to replicate the behavior above in asp.net?

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• UTF-8 BOM in php response to mootools xmlhttprequest

  - by Jimmy

  Hi, I'm writing my first little AJAX-enabled Joomla component. I'm using mootools. I got a xmlhttprequest to contact my Joomla component, and the component returns a response - just plain text echoed by php, like echo 'Hello World!'; It's all working fine, except wireshark tells me that the response is prepended with \357\273\277\357\273\277 when it gets read by the javascript on the client side. This shows up as a little square before the response in an alert box that the script shows. I don't explicitly set the encoding on the xmlhttprequest; mootools docs say that it defaults to UTF8. What's the right way to handle this? Should I be setting the encoding on the request? Mime type? Should the javascript get rid of it? I'm not planning to have any characters requiring UTF8 in the response, so using plain old ascii would be ok for me too. Thanks

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• How can I enable Vista/Win 7 theming/style for a ToolTip control?

  - by Joakim Hårsman

  In Windows Vista and Windows 7, ToolTips have a new visual style or theme, they are shiny grey metallic. How can I enable the new style for a ToolTip control? Some controls, like ListViews and ToolBars, use the new tooltips automatically, but other tooltips are rendered with the old yellow XP style. I've tried sending an TTM_SETWINDOWTHEME message but nothing happens and I'm not sure what string I am supposed to use for the visual style name. SetWindowTheme doesn't work either, I've used it successfully on ListViews and TreeViews to set the "Explorer" style (see http://www.danielmoth.com/Blog/TreeViewVista.aspx), but that doesn't seem to work on ToolTips. I'm using the plain win32 C API.

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• Tree item edit event listener in flex

  - by Biroka

  I want to catch itemEditEnd in a tree control, but i'm having a little trouble. I call the item editing a bit different: <mx:Tree id="tree" width="100%" height="100%" itemDoubleClick="treeProjects_itemDoubleClickHandler(event)" doubleClickEnabled="true" editable="true" itemEditBeginning="treeProjects_itemEditBeginingHandler(event)" itemEditEnd="treeProjects_itemEditEndHandler(event)" > but: protected function treeProjects_itemEditBeginingHandler(event:ListEvent):void { event.preventDefault(); } i do this, because I want to edit the field just when clicking rename in the context menu. And when I click rename in the context menu, this is what i'm doing (contextParentItem is the event catched on itemRollOver in the tree) : Tree( contextParentItem.target ).editedItemPosition = { columnIndex: 0, rowIndex: contextParentItem.rowIndex }; Thisway I can't catch the itemEditEnd event, but I want to handle some stuff, like: if the new entered value is an empty string, then I don't want to accept the new value if I hit ESC then, the old value should remain.

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• Windows - VBScript - Determine IP address of computer on network

  - by tward

  I have written some VBScripts to automate tasks that I perform on computers over the network. These work great for most tasks however within our network we have problems with the IP address in DNS being correct all the time. This mainly occurs with laptops where we have different IP ranges for machines on the wireless and wired network. For example a machine may boot up wired in the morning and get an IP address: 10.10.10.1 When it switches to wireless it will obtain an address in a different subnet: 10.11.10.1 When you try to connect to that machine it still returns the old IP address (10.10.10.1) even though the computer now has a new one. I have found that I can still connect to that computer's C$ share via \computer name\c$ even though the machine does not ping. Obviously there is some other kind of address resolution going on, my question is how do I harness this to allow my VBScripts connect to WMI? Thanks!

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• My teammate does not allow me to write unit tests... help?

  - by Nazgob

  Hello, I've moved from one team to another in same company. In old team (hardcore c++) we did lots of unit testing. In my new team (also c++) they do functional testing instead. During review they reject my code because of unit tests. Most of the team is interested in learning sth new but not the guy who is VIP and has legacy developer approach. He has to accept code before commit. He resists the change. Advice?

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