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• Why use Python interactive mode?

  - by mvid

  When I first started reading about Python, all of the tutorials have you use Python's Interactive Mode. It is difficult to save, write long programs, or edit your existing lines (for me at least). It seems like a far more difficult way of writing Python code than opening up a code.py file and running the interpreter on that file. python code.py I am coming from a Java background, so I have ingrained expectations of writing and compiling files for programs. I also know that a feature would not be so prominent in Python documentation if it were not somehow useful. So what am I missing?

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• How do you handle the fetchxml result data?

  - by Luke Baulch

  I have avoided working with fetchxml as I have been unsure the best way to handle the result data after calling crmService.Fetch(fetchXml). In a couple of situations, I have used an XDocument with LINQ to retrieve the data from this data structure, such as: XDocument resultset = XDocument.Parse(_service.Fetch(fetchXml)); if (resultset.Root == null || !resultset.Root.Elements("result").Any()) { return; } foreach (var displayItem in resultset.Root.Elements("result").Select(item => item.Element(displayAttributeName)).Distinct()) { if (displayItem!= null && displayItem.Value != null) { dropDownList.Items.Add(displayItem.Value); } } What is the best way to handle fetchxml result data, so that it can be easily used. Applications such as passing these records into an ASP.NET datagrid would be quite useful.

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• MobileMe Connection - Cocoa

  - by David Schiefer

  Hi, I need to send a file to MobileMe via Cocoa. I stumbled across a .Mac framework from Apple but it hasn't been updated in years, so I don't want to use it due to possible compatibility problems it may cause. I think that the MobileMe.framework is private, so I don't think I can use it. What kind of alternatives are there available for me so that I can upload the file to MobileMe? I've also been looking into WebDav frameworks (since MobileMe is WebDav based), but I didn't find anything useful either. Thanks!

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• Hidden Features of MXML

  - by Ole Jak

  What are some of the hidden features of MXML? MXML being used in Flex Framework became quite popular language (because Flash Player is something every PC has and Flash Builder, Flash Catalist are quite popular Adobe programms) So at least from the existing features, do you know any that are not well known but very useful. Of course, this question is along the lines of: Hidden Features of ActionScript Hidden Features of JavaScript Hidden Features of CSS Hidden Features of C# Hidden Features of VB.NET Hidden Features of Java Hidden Features of ASP.NET Hidden Features of Python Hidden Features of TextPad Hidden Features of Eclipse Hidden Features of HTML Please specify one feature per answer. Note that it's not always a great idea to use these hidden features; often times they are surprising and confusing to others reading your code.

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• Eclipse/adb error message in Vista "Failed to parse the output of adb version"

  - by watchman317

  I am trying to learn Android development, so I downloaded Eclipse Galileo and the Android SDK. However, whenever I start Eclipse, I get the error message "Failed to parse the output of adb version." In the Console/DDMS pane, the debug output reads: [2010-06-07 20:15:13 - ddms]Failed to reopen debug port for Selected Client to: 8700 [2010-06-07 20:15:13 - ddms]Address family not supported by protocol family: bind java.net.SocketException: Address family not supported by protocol family: bind at sun.nio.ch.Net.bind(Native Method) at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source) at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source) at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source) at com.android.ddmlib.MonitorThread.reopenDebugSelectedPort(Unknown Source) at com.android.ddmlib.MonitorThread.run(Unknown Source) [2010-06-07 20:15:17 - adb]Failed to parse the output of 'adb version' I am running Eclipse Galileo, have the most recent Android SDK downloaded, and am running Windows Vista 32-bit SP2. I am sure that the Android SDK path is correct and that all the files are there. I would appreciate any assistance anyone could provide. P.S.--If anyone could direct me to any useful Android development resources, I would appreciate it

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• Integer Linear Programming Java: Multiple Open Source and Commercial tools are available. Which one

  - by Sandeep Jindal

  Hi, I need to use Integer Linear Programming API/Tool for my application. Though my application is in Java but I don’t mind calling an EXE (Tool) from Java providing input using file (MPS, etc). My search analysis is as follows: There are multiple Open Source and Commercial tools available to solve ILP Following I found and think are useful for my needs. 1. Gnu LP Kit(GLPK): I think this is the oldest and probably most stable and efficient 2. IP_Solve: Has good reviews about it. 3. JavaILP: Found this, but not much reviews about it 4. Apache Common-Math: Supports LP but not ILP, so ruled out. 5. Coin-OR Can you please suggest which one shall be the best in terms of stability, efficiency, acceptance, etc Regards Sandeep Jindal

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• lambda expressions in C#?

  - by Matt

  Hey I'm rather new to these could someone explain the significance (of the following code) or prehaps give a link to some useful information on lambda expressions? I encounter the following code in a test and I am wondering why someone would do this: foo.MyEvent += (o, e) => { fCount++; Console.WriteLine(fCount); }; foo.MyEvent -= (o, e) => { fCount++; Console.WriteLine(fCount); }; My instinct tells me it is something simple and not a mistake, but I don't know enough about these expressions to understand why this is being done. Regards,

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• LicenseException for Xceed DataGrid for WPF

  - by ewall

  I have developed a simple DB-editing app using Xceed's excellent DataGrid for WPF (UX Edition version 3.7), which is now ready for deployment... except that when I run it on a machine other than the development one where it was built, I am getting the runtime exception for invalid licensing. I have included my license key in the App.xaml.cs exactly as specified in the Xceed docs, like so: public partial class App : System.Windows.Application { protected override void OnStartup(StartupEventArgs e) { Xceed.Wpf.DataGrid.Licenser.LicenseKey = "DGF37-xxxxx-xxxxx-xxxx"; base.OnStartup(e); } } The correct version of the DataGrid DLLs are being included in the setup and the application's program directory, and there are no other versions on the target machine. Debugging doesn't show me anything useful other than the LicenseException that is thrown when the code tries to use the DataGrid, with the message that reads "Xceed.Wpf.DataGrid.Licenser.LicenseKey property must be set to a valid license key in the code of your application before using this product..." Any idea what's going wrong here?

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• Should my connected web parts support IWebPartField, IWebPartRow and IWebPartData?

  - by Javaman59

  I've been writing some simple webparts, and they communicate via a custom interface type. That's working fine. I've got one ConnectionProvider, with a variety of ConnectionConsumers. I see that the OOTB SharePoint webparts provide many standard connections, apparently through IWebPartField and IWebPartRow (IWebPartData seems less supported). I've tried to add a IWebPartRow interface to a provider, and found that it's not actually useful (apparently), unless it's shareing data that the OOTB components use, such as images, urls and users. Well, that's the impression I got, anyway... I've only done a quick experiment, and found it quite difficult to implement and test. Is there any point in spending time trying to add support for the standard webpart interfaces?

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• jquery ui tabs major style change

  - by Jonah

  I am using jquery UI tabs and I need to majorly change the styling on it. I need to rempve the background image, the borders, almost everything. I need it to look minimal, and not like it's self contained. What's the best way to do this? I need to use the default UI styling for the calendar widget however, which is on the same page. I've done a lot of research and everyone seems to point to the theme-roller. However, i do not just want to change the colors and border radii. I need to delete crap. theme-roller seems to be just change things like colors (not really useful for the real world) Is it even worth using jquery UI for my tabs?

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• Unknown Host error when attempting to connect to connect to Eclipse plugin repository

  - by BordrGuy108

  Hello, I am running Ubuntu 9.10 and I'm attempting to install a plugin for Eclipse 3.5 from a repository that my company created. This worked in the past on this linux box and also works just fine on my laptop which has Windows XP installed. The exact error message I'm getting in Eclipse is: Unknown Host: <location of repository> org.eclipse.equinox.internal.provisional.p2.core.ProvisionException Any ideas what might be causing something that used to work not to work anymore? Thanks! EDIT: Also, it might be useful to know that I can connect to other eclipse plugin repositories fine; it seems that only my company's internal one is the problem.

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• Asking Box2d if a collision happened

  - by Rosarch

  I'm using Box2dx (ported to C#; optimized for XNA). It handles collision resolution, but how can I tell if two objects are currently colliding? This is the function I'm trying to write: public bool IsColliding(GameObjectController collider1, GameObjectController collider2) Where collider1.Model.Body is the Box2d Body, and collider1.Model.BodyDef is the Box2d BodyDef. (The same goes for collider2, of course.) UPDATE: Looks like contact listeners or this could be useful: AABB collisionBox; model.Body.GetFixtureList().GetAABB(out collisionBox); Why does GetFixtureList() return one fixture?

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• Get-WMIObject fails when run AsJob

  - by codepoke

  It's a simple question, but it's stumped me. $cred = Get-Credential $jobs = @() $jobs += Get-WmiObject ` -Authentication 6 ` -ComputerName 'serverName' ` -Query 'Select * From IISWebServerSetting' ` -Namespace 'root/microsoftiisv2' ` -EnableAllPrivileges ` -Credential $cred ` -Impersonation 4 ` -AsJob $joblist = Wait-Job -Job $jobs -Timeout 60 foreach ($job in $jobs) { if ($job.State -eq "Completed") { $app = Receive-Job -Job $job $app } else { ("Job not completed: " + $job.Name + "@" + $job.State + ". Reason:" + $job.ChildJobs[0].JobStateInfo.Reason) Remove-Job -Job $job -Force } } The query succeeds when run directly and fails when run -AsJob. Reason:System.UnauthorizedAccessException: Access is denied. I've jiggered with -Impersonation, -Credentials, -Authority, and -EnableAllPrivileges to no useful effect. It appears I'm overlooking something fundamental. Why is my Powershell prompt allowed to connect to the remote server, but my child process denied?

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• How to use Railroad to create a models diagram that show methods

  - by SeeBees

  Railroad is a great UML tool for Ruby on Rails. It can automatically generate class diagrams of models and controllers. For models, a railroad-generated class diagram shows attributes of each model and the associations between one model and another. A sample diagram can be found here. It is very useful for a developer to see attributes and associations of models. While attributes and associations reveal the inner states and relationships of models, methods specify their behaviours. They are all desirable in a class diagram. I would like railroad to generate a class diagram that also lists methods for models, which will help me to know what each model does. I know methods are displayed in a diagram that is generated for controllers, but I don't see such an option for a diagram of models. Does someone know how to do that with railroad? Or is that possible? Thanks!

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• Programmatically retrieve disconnected network adapter information in .NET

  - by Soo Wei Tan

  I have an application written in C# that needs to retrieve information like IP address, subnet mask from a disconnected network adapter. I've tried using various methods such as WMI and the .NET NetworkAdapter class but they don't return any useful data when the network adapter is disconnected. I'm pretty sure Windows keeps this information somewhere, since I can apply network settings using netsh and it appears correctly in the Control Panel. One thing that worked for me in XP was to parse the output of the netsh tool and it would return information even for a disconnected adapter. However, this doesn't seem to work on Windows 7. Win XP output: Configuration for interface "Local Area Connection 5" DHCP enabled: No IP Address: 169.254.0.128 SubnetMask: 255.255.255.0 InterfaceMetric: 0 Win7 output: Configuration for interface "Local Area Connection 2" DHCP enabled: No InterfaceMetric: 5 Any ideas?

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• Bash alias to open Vim at last edit mark

  - by Pierre LaFayette

  The mark " in Vim takes you to your last edit position. I want to create an alias that will open my Vim instance and jump to that mark; something which is obviously extremely useful. This works from the command line: $ vim -c "'\"" File.cpp Now I want to make an alias for this: $ alias v='vim -c "'\"" File.cpp' Well that's not going to work! You need to escape the first single quote you say... $ alias v='vim -c "\'\"" File.cpp' Hmm. That didn't work either... So I try a whole lot of variations of single quoted and double quoted madness, bang my head against the table and load up stackoverflow in my browser, and here we are. How do I properly escape this alias?

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• High volume SVM (machine learning) system

  - by flyingcrab

  I working on a possible machine learning project that would be expected to do high speed computations for machine learning using SVM (support vector machines) and possibly some ANN. I'm resonably comfortable working on matlab with these, but primarly in small datasets, just for experimentation. I'm wondering if this matlab based approach will scale? or should i be looking into something else? C++ / gpu based computing? java wrapping of the matlab code and pushing it onto app engine? Incidentally, there seems to be a lot fo literature on GPUs, but not much on how useful they are on machine learning applications using matlab, & the cheapest CUDA enlabled GPU money can buy? is it even worth the trouble?

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• Noob-Ready Cython Tutorials

  - by spearfire

  I know a bunch of scripting languages, (python, ruby, lua, php) but I don't know any compiled languages like C/C++ , I wanted to try and speed up some python code using cython, which is essentially a python - C compiler, aimed at creating C extensions for python. Basically you code in a stricter version of python which compiles into C - native code. here's the problem, I don't know C, yet the cython documentation is aimed at people who obviously already know C (nothing is explained, only presented), and is of no help to me, I need to know if there are any good cython tutorials aimed at python programmers, or if I'm gonna have to learn C before I learn Cython. bear in mind I'm a competent python programmer, i would much rather learn cython from the perspective of the language I'm already good at, rather than learn a whole new language in order to learn cython. 1) PLEASE don't recommend psyco edit: ANY information that will help understand the oficial cython docs is useful information

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• How to Increment Visual Studio build number using C++?

  - by Brock Woolf

  I have a Visual Studio 2008 project that produces a file called: "Game-Release.exe". This was configured under Project Properties - C/C++ - Linker - General: $(OutDir)\$(ProjectName)-Release.exe I would like to take this a bit further by have an incrementing build number so I would have something which says: Game-Release-Build-1002.exe The number on the end should be an incrementing integer. I will be storing the build exe's on subversion so I think i would find this useful (although not necessary). Perhaps there is a built in macro in Visual Studio that could handle this. Quite possibly I was thinking I could have a text file with the build number in it and have the compiler read, use and increment the number in the file each time the project is built. My goal is however to make the process as automated as possible. What is the best way to accomplish this? If you offer an opinion, please also provide the code we can all share. Thnx.

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• Flowcharting tool/add-in for Visual Studio

  - by Rajah

  A 2 part question: Are flow-charts, as tool to analyze source-code, no longer considered useful? The reason I ask this question is that if you Google for source-code to flowchart tools for Visual Studio, there are no relevant results. Also, Microsoft does not seem to have a tool for this purpose. Are people just not using flowcharts that much any more? (I find them to be a great way to document complex logic in my code). Are there any VS tools that can take .Net (C#, VB.Net) code and convert it to a flowchart? (The only tool that I found is Aviosto's Visustin, which does not provide VS integration). Any other tools that you can recommend for this purpose?

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• how to access facebook or twitter using blackberry API?

  - by Mishal

  Hi, I am newbie for such kind of social networking Application integration using blackberry API. i want to develope such kind of application which can use the facebook or twitter social networking site integration using available blackberry api. how to access the faceBook using blackberry API? Is there any webservice available of facebook on which blackberry api can work and access it? is there any application exist with whole source code for accessing the facebook using the blackberry api? if anybody has any solution or any useful link or any code snippet,which would be appreciated.:) Thanks, Mishal

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• Configuring Team System Code Analysis via a FxCop rules file

  - by Ian G

  Is there anyway to configure the code analysis rules in Visual Studio Team System to match those in an FxCop configuration file and keep them in sync automatically? Not all the developers on the team have TS so keeping the rules we are currently running in an FxCop file is required so everyone can run the same set, but it would nice for those with to be able to run them in the IDE. We're introducing static analysis to an existing project so turning on everything now isn't a useful option. (We are not using Foundation Server for source control, if that makes any difference.)

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• MSB3422 Failed to retrieve VC project information through the VC project engine object model. MSB342

  - by Scott Langham

  I'm getting the following errors from MSBuild while trying to build a solution: C:\dev\MySln.sln : warning MSB3422: Failed to retrieve VC project information through the VC project engine object model. Unable to determine default tool for the specified file configuration. C:\dev\MySln.sln : warning MSB3425: Could not resolve VC project reference "C:\dev\MyProj.vcproj". Have you got any ideas on what's causing this? I've seen other postings about similar, but different errors such as when the MSB3422 error has a different message and shows "Illegal characters in path.", but I haven't seen any useful information about how to solve the error I'm getting where it says "Unable to determine default tool for the specified file configuration.". Thanks. I found this, but it doesn't really help: http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/b470f111-9321-4b43-8bd1-7fcf67c2d402

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• .NET and P2P - writing a P2P messenger

  - by brovar

  Hi there, Does anyone have any advice how to write such app? Or maybe knows some nice tutorial? I would like to use System.Net.PeerToPeer namespace, but everything I can find about it is MSDN which I can't read without getting mad. Or maybe using "old-school" TCP/IP would more efficient? I will appreciate every piece of advice. Every sample code I will shower with gold ;) And please, don't send me back to Google for I have searched for a long time for sth useful - maybe inaccurately but time is running out and I really need some help.

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• Ideas for a PHP Summer Project

  - by Francesc

  Each student in my school, has to develop a Technology Summer Project. I was thinking in doing something in PHP, using MySQL databases, and something that has some utility for the real life. I'm an advanced PHP developer (not an expert one :). The project has to follow that rules: It's in PHP It's a front-end and a backend Has to be something to solve a real-life problem and useful. I don't have any idea. Can you help me with an idea, please?

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