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• How to animate CornerRadius property with four distinct values - "0,0,0,0" to "0,0,10,10" ?

  - by banzai

  Hi all I have to transition the CornerRadius property of a Border from value "0,0,0,0" to value "0,0,10,10" via an animation. This must be done directly in the XAML file w/o using code behind other than a ValueConverter or similar. I think CornerRadius is animatable using an ObjectAnimationUsingKeyFrames - but how to animate just two of the four values of the CornerRadius structure ? Thanks in advance !

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• Submit by pressing enter in a windows form

  - by Avik

  In order to transfer text from one textbox to another, I have created a submit button. However it would be preferable to use the functionality of the 'enter' key. I am not sure but i think the ascii code is 13.Anyway how do I go about this task at hand?

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• Difference between genetic and evolutionary algorithms ?

  - by Mr.Gando

  Is there a difference between Genetic algorithms and evolutionary algorithms ? I have read multiple papers, talking about genetic or evolutionary algorithms, and while very similar, I think they may not be the same thing.

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• Python code to use a regular expression to make sure a string is alphanumeric plus . - _

  - by Warlax

  Hi, I looked and searched and couldn't find what I needed although I think it should be simple (if you have any Python experience, which I don't). Given a string, I want to verify, in Python, that it contains ONLY alphanumeric characters: a-zA-Z0-9 and . _ - examples: Accepted: bill-gates Steve_Jobs Micro.soft Rejected: Bill gates -- no spaces allowed [email protected] -- @ is not alphanumeric I'm trying to use: if re.match("^[a-zA-Z0-9_.-]+$", username) == True: But that doesn't seem to do the job...

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• ReSharper Code Cleanup/Reformat Code feature vs Versioning Control Systems

  - by Romain Verdier

  ReSharper Code cleanup feature (with "reorder members" and "reformat code" enabled) is really great. You define a layout template using XML, then a simple key combination reorganizes your whole source file (or folder/project/solution) according to the rules you set in the template. Anyway, do you think that could be a problem regarding VCS like subversion, cvs, git, etc. ? Is there a chance that it causes many undesired conflicts ? Thank you.

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• Android - incremental status bar notification icon

  - by DroidIn.net

  You know what I'm talking about: for example when you get multiple new emails the notification icon in the status bar is augmented with a little red circle that contains number of unread mails. Twitroid has the same icon. Any idea how it's done? I don't think (or so I hope) there are 10000 similar icons. Is this red circle generated and overlaid the notification icon? If so - any code snippets will be much appreciated.

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• how did facebook do "time ago"

  - by Gandalf StormCrow

  Does anybody know how did facebook do that "time ago". I'm trying to do the same with php/javascript. I think it works something like php renders timestamp in html and then javascript continuously calculate the time ago, does anybody know anymore info about this?

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• How to implement DomainKeys?

  - by jmutaka

  Can any one gave me requirements/step-by-step procedures on how am I suppose to create DomainKeys for my mail server so that our email can pass through on Yahoo!'s mail server without being marked as spam or bulk mail? I think implementing DomainKeys is one of the requirements of Yahoo! Mail to not have email marked as spam. Our mail server is hmailserver.

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• Do you have any favorite ergonomic exercise or habit?

  - by melaos

  I've read somewhere that ergonomic problems accounts for 70% of injury... And i don't want to be one of those guys who think, ahh it's just a slight sore, and go on and discover that i have CTS and have to operate on my hands!!! So are the any good ergo habits that you follow religiously each day? Or some cool tools that would send any ergo issue to a cold hell and force it to stay there. So we can program hopefully until we're old and wicked.

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• what is the difference between Association rule mining & frequent itemset mining

  - by zeedotcom

  i am new to data mining and confuse about Association rules and frequent item mining. for me i think both are same but i need views from experts on this forum My question is what is the difference between Association rule mining & frequent itemset mining? Thanks

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• "Wrapping" a BindingList<T> propertry with a List<T> property for serialization.

  - by Eric

  I'm writing an app that allows users search and browse catalogs of widgets. My WidgetCatalog class is serialized and deserialized to and from XML files using DataContractSerializer. My app is working now but I think I can make the code a lot more efficient if I started taking advantage of data binding rather then doing everything manually. Here's a stripped down version of my current WidgetCatalog class. [DataContract(Name = "WidgetCatalog")] class WidgetCatalog { [DataContract(Name = "Name")] public string Name { get; set; } [DataContract(Name = "Widgets")] public List<Widget> Widgets { get; set; } } I had to write a lot of extra code to keep my UI in sync when widgets are added or removed from a catalog, or their internal properties change. I'm pretty inexperienced with data-binding, but I think I want a BindingList<Widget> rather than a plain old List<Widget>. Is this right? In the past when I had similar needs I found that BindingList<T> does not serialize very well. Or at least the Event Handers between the items and the list are not serialized. I was using XmlSerializer though, and DataContractSerializer may work better. So I'm thinking of doing something like the code below. [DataContract(Name = "WidgetCatalog")] class WidgetCatalog { [DataMember(Name = "Name")] public string Name { get; set; } [DataMember(Name = "Widgets")] private List<Widget> WidgetSerializationList { get { return this._widgetBindingList.ToList<Widget>(); } set { this._widgetBindingList = new BindingList<Widget>(value); } } //these do not get serialized private BindingList<Widget> _widgetBindingList; public BindingList<Widget> WidgetBindingList { get { return this._widgetBindingList; } } public WidgetCatalog() { this.WidgetSerializationList = new List<Widget>(); } } So I'm serializing a private List<Widget> property, but the GET and SET accessors of the property are reading from, and writing to theBindingList<Widget> property. Will this even work? It seems like there should be a better way to do this.

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• Would Ruby on Rails be appropriate for this Foreign Language project?

  - by Lynne Overesch-Maister

  I'm a Spanish professor & computer groupie. About 15 years ago, I authored in HyperCard a series of verb conjugation programs that are now completely out of date with respect to System OS X. I would like to redo these programs myself because I had a lot of fun doing them last time (mostly I coded while my son played in Leaps and Bounds, you know, one of those places where parents take their kids & let them run wild through the tubes...). Colleagues have mentioned using Flash, Director, and various other solutions, but I saw a presentation on RoR at our SIDLIT conference today, and was inspired. I will be parsing and comparing strings (and there are other features on top of that, but that is the main one), "adding" strings relationally indexed in some kind of database(s). It will also have to handle various foreign characters (accents, upside down question marks, etc.). On top of the main process of the program, it will have to provide a practice vs. test mode, keep track of specific answers as well as totals right/wrong, and print a report. Would this be either easier and/or more efficiently done in RoR than in other languages. I am pretty sure that it will work on a Microsoft server, right? Because I think that is where most of our stuff is. I would be programming either on a Mac or a PC, whichever you think is easier. So, in summary, is RoR the way for me to go with this project? If I have some (little) experience programming in Hypercard and C, should I be able to pick RoR up fairly quickly? What things will I need to start (I already saw something called Redhills foreign key migration plugin, which I assume would be beneficial)? I still have my old scripts from hypercard, however what I would really like to do is to combine all six of my former tense-specific programs into one larger program. I figure that it wouldn't be too hard to reference the individual tenses in some way--could that be a class? Many thanks for any help you can give me on this forum.

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• Stop All Started Services on App Close / Exit

  - by Rad The Mad

  Is it possible to stop all started services when the user hits the Home Button? I use: startService(new Intent(ClassName.this, ClassName2.class)); stopService(new Intent(ClassName.this, ClassName2.class)); This means I will have to somehow add the 'stopService()' for 7+ of my app classes I've researched this topic and I think there's 'onTerminate' but still not sure how this should be implemented. Any help or hints would be appreciated! Thanks!

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• UITableViewCell with selectable/copyable text that also detects URLs on the iPhone

  - by Jasarien

  Hi guys, I have a problem. Part of my app requires text to be shown in a table. The text needs to be selectable/copyable (but not editable) and any URLs within the text need to be highlighted and and when tapped allow me to take that URL and open my embedded browser. I have seen a couple of solutions that solve one of either of these problems, but not both. Solution 1: Icon Factory's IFTweetLabel The first solution I tried was to use the IFTweetLabel class made possible by Icon Factory and used in Twitterrific. While this solution allows for links (or anything you can find with a regex) to be detected to be handled on a case by case basis, it doesn't allow for selecting and copying. There is also an issue where if a URL is long enough to be wrapped, the button that the class overlays above the URL to make it interactive cannot wrap and draws off screen, looking very odd. Solution 2: Use IFTweetLabel and handle copy manually The second thing I tried was to keep IFTweetLabel in place to handle the links, but to implement the copying using a long-tap gesture, like how the SMS app handles it. This was just about working, but it doesn't allow for arbitrary selection of text, the whole text is copied, or none is copied at all... Pretty black and white. Solution 3: UITextView My third attempt was to add a UITextView as a subview of the table cell. The only thing that this doesn't solve is the fact that detected URLs cannot be handled by me. The text view uses UIApplication's openURL: method which quits my app and launched Safari. Also, as the table view can get quite large, the number of UITextViews added as subviews cause a noticeable performance drag on scrolling throughout the table, especially on iPhone 3G era devices (because of the creation, layout, compositing whenever a cell is scrolled on screen, etc). So my question to all you knowledgeable folk out there is: What can I do? Would a UIWebView be the best option? Aside from a performance drag, I think a webview would solve all the above issues, and if I remember correctly, back in the 2.0 days, the Apple documentation actually recommended web views where text formatting / hyperlinks were required. Can anyone think of a way to achieve this without a performance drag? Many thanks in advance to everyone who can help.

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• where to set wait cursor in long operation in MVP pattern?

  - by Benny

  For a long operation that will be executed in presenter, where to set the wait cursor? in View? the view shouldn't know too much about business logic, it is passive. in presenter? seems odd in presenter to call UI code. add method to View interface, like SetWait(bool), and call it in presenter? So what do you think?

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• Suggestion needed to learn Machine Learning and Information Retrieval

  - by Jonathan Barbero

  Hi! I want lo learn about Information Retrieval and Machine Learning. Which books do you recommend and in what order do you think is better to read them? The idea is to reach a good understanding of recommendation systems. Thanks! Jonathan

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• Starting memory allocation for JVM.

  - by C. Ross

  I'm beginning use the -Xmx option on the java command to allow my processes to use a little more memory (256Mb, though I think I'm currently using less than 128Mb). I've also noticed the -Xms option for starting memory, with a default value of 2Mb. What should I set this value to and why? Reference: Java

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• A look into serialPort

  - by MarekK

  You wrote at: Opened SerialPort crashes C# application "A look into the .NET Framework source code helped a lot. But I think the thrown ObjectDisposedException should be caught by the SerialPort, not by the user." I'd like to take a look on source code for serialPort. How can I do it?

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• developing sms application in iPhone??

  - by hemant

  Hello, i am new to iPhone programming and i was thinking of developing an sms application through which user can send and receive sms inside my application similar to iPhone own message application.i think apple doesn't provide any API regarding accessing sms inbox?? is there any other way around it??

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• How can I change the user identity that runs a build agent in TeamCity?

  - by Chris Farmer

  I am trying to get a build process set up in TeamCity 5, and I am encountering an access denied error when trying to copy some files. I see that my build agent is running as "SYSTEM" now, and I think that's part of the problem. I'd like to change that user identity. The trouble is that I can't figure out how to change those settings on the build agent. How can I change the build user identity?

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• What are the most commonly used anti-patterns?

  - by Esteban Araya

  I'm just wondering what are some of the classic mistakes we all make. I think before working on writing good code, you must learn to recognize bad code... especially when it's YOUR code!

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• IE8 style.top limited to 1342177?

  - by Nishan

  Found this rather strange bug in IE8; element.style.top is limited to 1342177 pixels. Even though an element will rarely grow this large, it is not impossible. And when it does things break. (I am an unfortunate victim) Any possible work arounds you guys can think of?

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• ASP.NET MVC3 Custom Membership Provider - The membership provider name specified is invalid.

  - by David Lively

  I'm implementing a custom membership provider, and everything seems to go swimmingly until I create a MembershipUser object. At that point, I receive the error: The membership provider name specified is invalid. Parameter name: providerName In web.config the membership key is <membership defaultProvider="MembersProvider"> <providers> <clear/> <add name="MembersProvider" type="Members.Providers.MembersProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="DeviceDatabase" /> </providers> </membership> When creating the MembershipUser object from my custom User class: public static MembershipUser ToMembershipUser(User user) { MembershipUser member = new MembershipUser ("MembersProvider" , user.Name , user.Id , user.EmailAddress , user.PasswordQuestion , user.Comment , user.IsApproved , user.IsLockedOut , user.DateCreated , user.LastLoginDate ?? DateTime.MinValue , user.LastActivityDate ?? DateTime.MinValue , user.LastPasswordChangedDate ?? DateTime.MinValue , user.LastLockoutDate ?? DateTime.MinValue ); return member; } (I realize I could probably just inherit my User class from MembershipUser, but it's already part of an existing class hierarchy. I honestly think this is the first time I've encountered a legitimate need for for multiple inheritance!) My feeling is that the new MembershipUser(...) providerName parameter is supposed to match what's set in web.config, but, since they match already, I'm at a loss as to how to proceed. Is there a convenient way to get the name of the active membership provider in code? I'm starting to think that using the built-in membership system is overkill and more trouble than it's worth. Edit Not sure if it's relevant, but the custom membership provider class is in a class library, not the main WAP project. Update Here's the contents of the System.Web.Security.Membership.Provider object as show in the VS2010 command window: >eval System.Web.Security.Membership.Provider {Members.Providers.MembersProvider} [Members.Providers.MembersProvider]: {Members.Providers.MembersProvider} base {System.Configuration.Provider.ProviderBase}: {Members.Providers.MembersProvider} ApplicationName: null EnablePasswordReset: true EnablePasswordRetrieval: false MaxInvalidPasswordAttempts: 5 MinRequiredNonAlphanumericCharacters: 0 MinRequiredPasswordLength: 6 PasswordAttemptWindow: 10 PasswordFormat: Function evaluation was aborted. PasswordStrengthRegularExpression: Cannot evaluate expression because debugging information has been optimized away . RequiresQuestionAndAnswer: Cannot evaluate expression because debugging information has been optimized away . RequiresUniqueEmail: Cannot evaluate expression because debugging information has been optimized away .

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• Remove characters with regex in c#

  - by Rise_against

  Hello all, I am not a regex specialist, so I need some help with this. I have a text file, and I need to remove some trailing delimiters. The text file looks like this: MSH|^~\&|OAZIS||||20101029135359||ADT^A31|00000015|P|2.3.1||||||ASCII EVN|A31|20101029135359^^^^||||19900101 So I think the best way is to do a Regex replace? Can anyone help me with this regex? I want to remove all ^ that come before a | So test^A^^| has to become test^A| Thanks

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• Incorrect syntax near ''. Unclosed quotation mark after the character string ' '.

  - by Mattec

  I'm just wondering if someone could point me in the right direction here, I think i've been looking at it for too long so can't see the mistake. The following code: SqlCommand updateStyle = new SqlCommand("UPDATE [Lorenz].[dbo].[Layout] SET [bgColour] = '" + bgColour + "' , [textColour] = '" + txtColour + "WHERE <[LoweredUserName] ='" + currentUser + "' ", connection); updateStyle.ExecuteNonQuery(); Is giving the error: Incorrect syntax near 'admin'. Unclosed quotation mark after the character string ' '.

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