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• Error in java code.

  - by user243680

  I am getting the following error when i try to use a blue tooth dongle to transfer a video file from pc to mobile phone. does anyone know run: BlueCove log redirected to log4j log4j:WARN No appenders could be found for logger (com.intel.bluetooth). log4j:WARN Please initialize the log4j system properly. BlueCove version 2.1.0 on bluesoleil java.io.IOException: Device not discovered BlueCove stack shutdown completed at com.intel.bluetooth.BluetoothStackBlueSoleil.connectionRfOpenClientConnection(BluetoothStackBlueSoleil.java:361) at com.intel.bluetooth.BluetoothRFCommClientConnection.<init>(BluetoothRFCommClientConnection.java:37) at com.intel.bluetooth.MicroeditionConnector.openImpl(MicroeditionConnector.java:379) at com.intel.bluetooth.MicroeditionConnector.open(MicroeditionConnector.java:162) at javax.microedition.io.Connector.open(Connector.java:83) at de.avetana.obexsolo.OBEXConnector.open(OBEXConnector.java:103) at OBEXTest.main(OBEXTest.java:23)

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• Django code organization

  - by iHeartDucks

  I am working on a Django app and I have a class which reads the contents of a file and returns a Django model. My question is where do I store this class in the file system? All this does is reads the file, populates a Django model and returns it. Thanks

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• Reduce lines of code

  - by coffeeaddict

  I'm not a JavaScript guru (yet). I am trying to figure out a way to cut down the number of lines below...are there any shortcuts for lets say the if statements? function showDialog(divID) { var dialogDiv = $("#" + divID); var height = 500; var width = 400; var resizable = false; if (dialogDiv.attr("height") != "") { height = parseInt(dialogDiv.attr("height")); } if (dialogDiv.attr("width") != "") { width = parseInt(dialogDiv.attr("width")); } if (dialogDiv.attr("resizable") != "") { resizable = dialogDiv.attr("resizable"); } dialogDiv.dialog ( { resizable: resizable, width: width, height: height, bgiframe: true, modal: true, autoOpen: false, show: 'blind' } ) dialogDiv.dialog("open"); }

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• Can't debug code using VS 2010 beta 2

  - by Nathan W

  This is really strange and I can't seem to figure out why it won't work. I have a C# dll that is a add on for another program, the main program is not mine or a .Net app so I am starting it with Start external program in the debugging tab and and passing my program as a command line and the program starts and loads my add on however my Visual Studio debugger doesn't step into the debugger and won't hit my break points. I checked the module window and it's not even loaded in there, I used process explorer and had a look at main program and my dll was loaded into the main app. The project is set to debug, symbols to full and still nothing. I created the project in VS 2008 and it worked fine and am now trying to get this to work in VS 2010 and no go. Anyone know what could be causing this?

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• Rails: creating a custom data type / creating a shorthand

  - by Shyam

  Hi, I am wondering how I could create a custom data type to use within the rake migration file. Example: if you would be creating a model, inside the migration file you can add columns. It could look like this: def self.up create_table :products do |t| t.column :name, :string t.timestamps end end I would like to know how to create something like this: t.column :name, :my_custom_data_type The reason for this to create for example a "currency" type, which is nothing more than a decimal with a precision of 8 and a scale of 2. Since I use only MySQL, the solution for this database is sufficient enough. Thank you for your feedback and comments!

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• C# Setting Properties using Index

  - by Guazz

  I have a business class that contains many properties for various stock-exchange price types. This is a sample of the class: public class Prices { public decimal Today {get; set} public decimal OneDay {get; set} public decimal SixDay {get; set} public decimal TenDay {get; set} public decimal TwelveDay {get; set} public decimal OneDayAdjusted {get; set;} public decimal SixDayAdjusted {get; set;} public decimal TenDayAdjusted {get; set;} public decimal OneHundredDayAdjusted {get; set;} } I have a legacy system that supplies the prices using string ids to identify the price type. E.g. Today = "0D" OneDay = "1D" SixDay = "6D" //..., etc. Firstly, I load all the values to an IDictionary() collection so we have: [KEY] VALUE [0D] = 1.23456 [1D] = 1.23456 [6D] = 1.23456 ...., etc. Secondly, I set the properties of the Prices class using a method that takes the above collection as a parameter like so: SetPricesValues(IDictionary<string, decimal> pricesDictionary) { // TODAY'S PRICE string TODAY = "D0"; if (true == pricesDictionary.ContainsKey(TODAY)) { this.Today = pricesDictionary[TODAY]; } // OneDay PRICE string ONE_DAY = "D1"; if (true == pricesDictionary.ContainsKey(ONE_DAY)) { this.OneDay = pricesDictionary[ONE_DAY]; } //..., ..., etc., for each other property } Is there a more elegant technique to set a large amount of properties? Thanks, j

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• Re-using Buttons in WPF

  - by Alex Marshall

  I have a bunch of different objects that are commonly edited in the same TabControl using different DataTemplates, but I want each DataTemplate to have a common look and feel with Ok and Cancel buttons at the bottom right of each tab that will close the tab or save the content and then close the currently selected tab. What's the best way to place buttons on each tab ? Is there a way to do it without copying and pasting the buttons and stack panel across all of my data templates ?

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• send key code to command line program os x bash script

  - by Sandy Vanderbleek

  I want to make a script that starts a program and then sends it key input. #!/bin/bash ./program (PRESS CONTROL-Z) Is this possible? From what I've found I thought it might require key codes but I could be wrong.

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• Code an integer multiplication function using recursion (in C)

  - by Madhan

  Can any body tell how to write a multiplication function (in C) using recursion?

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• NSXMLParser error code 65

  - by Zhongcai

  Hi guys, NSXMLParser is giving me the following error: "Error 65, Description: (null), Line: 1, Column: 47" I've checked the documentation, and it says that a space is required at column47??. Was hoping someone can help out on this? The raw xml file is as follows. Strangely, the parser works intermittently at times, and for the same xml file. <?xml version="1.0"?> <contacts> <known> <pid>116</pid> <abid>188</abid> <latitude>1.417320695</latitude> <longitude>103.7597807</longitude> <status>Available</status> </known> </contacts>

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• AudioFileWriteBytes fails with error code -40

  - by alexbw

  I'm trying to write raw audio bytes to a file using AudioFileWriteBytes(). Here's what I'm doing: void writeSingleChannelRingBufferDataToFileAsSInt16(AudioFileID audioFileID, AudioConverterRef audioConverter, ringBuffer *rb, SInt16 *holdingBuffer) { // First, figure out which bits of audio we'll be // writing to file from the ring buffer UInt32 lastFreshSample = rb->lastWrittenIndex; OSStatus status; int numSamplesToWrite; UInt32 numBytesToWrite; if (lastFreshSample < rb->lastReadIndex) { numSamplesToWrite = kNumPointsInWave + lastFreshSample - rb->lastReadIndex - 1; } else { numSamplesToWrite = lastFreshSample - rb->lastReadIndex; } numBytesToWrite = numSamplesToWrite*sizeof(SInt16); Then we copy the audio data (stored as floats) to a holding buffer (SInt16) that will be written directly to the file. The copying looks funky because it's from a ring buffer. UInt32 buffLen = rb->sizeOfBuffer - 1; for (int i=0; i < numSamplesToWrite; ++i) { holdingBuffer[i] = rb->data[(i + rb->lastReadIndex) & buffLen]; } Okay, now we actually try to write the audio from the SInt16 buffer "holdingBuffer" to the audio file. The NSLog will spit out an error -40, but also claims that it's writing bytes. No data is written to file. status = AudioFileWriteBytes(audioFileID, NO, 0, &numBytesToWrite, &holdingBuffer); rb->lastReadIndex = lastFreshSample; NSLog(@"Error = %d, wrote %d bytes", status, numBytesToWrite); return;

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• Preventing Processes From Spawning Using .NET Code

  - by Matt

  I remember coming across an article on I think CodeProject quite some time ago regarding an antivirus or antimalware some guy was writing where he hooked into the Windows API to be able to catch whenever a new process was started and was prompting he user before allowing the process to start. I can no longer find the article, and would actually like to be able to implement something like this. Currently, we have a custom browser built on Gecko that we've integrated access restrictions to sites based on our internal employee security levels, etc. We prevent any other browser from running with a timer and a call to Process.GetProcessesByName() from a list of the browsers we don't allow. What we want to accomplish is, instead of just blocking these browsers, where there is a small delay between the other browser starting and it being killed by our service, we'd like to be able to display a dialog instead of the process launching at all, explaining that the program isn't in the allowed list. This way, we can generate a list of "allowed" processes and just block everything else (we haven't yet had a problem with outside apps being installed, but you can never be too careful). Unfortunately, we don't do much Windows API programming from C#, so I'm not sure where to begin looking for what calls we need to hook. Even just a starting point of what to read up on would be helpful.

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• Custom code access permissions

  - by jaklucky

  Hi all, We have a server written in C# (Framework 3.5 SP1). Customers write client applications using our server API. Recently, we created several levels of license schemes like Basic, Intermediate and All. If you have Basic license then you can call few methods on our API. Similiarly if you have Intermediate you get some extra methods to call and if you have All then you can call all the methods. When server starts it gets the license type. Now in each method I have to check the type of license and decide whether to proceed further with the fucntion or return. For example, a method "InterMediateMethod()" can only be used by Intermediate License and All license. So I have to something like this. public void InterMediateMethod() { if(licenseType == "Basic") { throw new Exception("Access denined"); } } It looks like to me that it is very lame approach. Is there any better way to do this? Is there any declarative way to do this by defining some custom attributes? I looked at creating a custom "CodeAccessSecurityAttribute" but did not get a good success. Thank you, Suresh

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• ASP.NET MVC using App_Code directory

  - by Ben

  I've added an App_Code directory to my ASP.NET MVC project so that I get dynamic compilation for plugins. Only slight annoyance is that when developing new plugins, I don't get intellisense on classes inside the App_Code directory. Currently I am creating them in another directory inside my project and then copying them into App_Code. is there any way around this?

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• KSH shell script won't execute and returns 127 (not found)

  - by Chris Knight

  Can anyone enlighten me why the following won't work? $ groups staff btgroup $ ls -l total 64 -rw-rw---- 1 sld248 btgroup 26840 Apr 02 13:39 padaddwip.jks -rwxrwx--- 1 sld248 btgroup 1324 Apr 02 13:39 padaddwip.ksh $ ./padaddwip.ksh ksh: ./padaddwip.ksh: not found. $ echo $? 127 This is nearly identical to another script which works just fine. I can't see any differences between the two in terms of permissions or ownership. thanks in advance!

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• What should considered to prevent Injection in request forms ?

  - by Nasser Hajloo

  What should considered to prevent Injection in request forms ? e.g : using Recaptcha, preventing SQL Injections, etc ... what other item should be consider ?

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• What are the limitations of Reflection.Emit vs. other assembly generation techniques?

  - by Jesse McGrew

  I've used Reflection.Emit in the past to write a compiler, but I know the standard compilers don't use it, and in an answer to another question here I saw a mention that there are some things Reflection.Emit is unable to do. What are the limitations of Reflection.Emit that I should be aware of if I plan on writing another compiler for .NET?

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• Rotate webpage via code?

  - by Adam Davis

  I'm hoping that there's a relatively simple way to rotate a webpage a little bit, 30 degrees or so, while still leaving it fully functional and usable. I completely control the page, and can modify it to make this easier if needed. I'd rather not re-write the whole thing in SVG, though, but perhaps javascript and canvas will work? Is there a way using CSS, Javascript, or some other cross browser method that would allow me to accomplish this?

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• Are this 2 code parts same?

  - by Samvel Siradeghyan

  private double memberVal; public double MemberVal { get { return memberVal; } set { memberVal= value; } } and private double MemberVal { get; set; }

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• eclemma - how to ignore source

  - by hba

  Hi, I'm using junit/eclemma; it works great, except I'd like to instruct eclemma to ignore certain methods or classes. For example, how would i instruct eclemma to ignore getters/setters. Thanks in advance!

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• How to code a URL shortener?

  - by marco92w

  I want to create a URL shortener service where you can write a long URL into an input field and the service shortens the URL to "http://www.example.org/abcdef". Instead of "abcdef" there can be any other string with six characters containing a-z, A-Z and 0-9. That makes 56 trillion possible strings. My approach: I have a database table with three columns: id, integer, auto-increment long, string, the long URL the user entered short, string, the shortened URL (or just the six characters) I would then insert the long URL into the table. Then I would select the auto-increment value for "id" and build a hash of it. This hash should then be inserted as "short". But what sort of hash should I build? Hash algorithms like MD5 create too long strings. I don't use these algorithms, I think. A self-built algorithm will work, too. My idea: For "http://www.google.de/" I get the auto-increment id 239472. Then I do the following steps: short = ''; if divisible by 2, add "a"+the result to short if divisible by 3, add "b"+the result to short ... until I have divisors for a-z and A-Z. That could be repeated until the number isn't divisible any more. Do you think this is a good approach? Do you have a better idea?

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• Set background color of WPF Textbox in C# code

  - by Sauron

  How can I change the background and foreground colors of a WPF Textbox programatically in c#?

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• How to get .NET HttpContext for isolated code block

  - by Matt Thrower

  Hi, In .NET is it possible to get the HttpContext of the current page from within an external class? So, for example in my page test1.aspx codebehind I've got: Dim blah As New FeedWriter() blah.Run() But inside FeedWriter.vb, can I get the HttpContext of test1.aspx? Or would I have to pass it in to Run()? (I'm unwilling to do the latter because FeedWriter implements an interface which will need to be re-written if it's to take arguments) Cheers, Matt

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• Unable to checkout log4j repository

  - by ankit

  I'm using tortoiseSVN to checkout the log4j v1.2 source from - http://svn.apache.org/repos/asf/logging/log4j/trunk But i keep getting this error: Error: OPTIONS of '': Could not Error: resolve hostname `svn.apache.org': No such host is known. The funny thing is that i can access 'svn.apache.org' from my browser but if i try to ping it from the command prompt, it says host not found. Does any body else face this problem? Is there any other way to get the source for log4j v1.2?

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• Visual Studio 2010 Assembly Signing: An attempt was made to reference a token that does not exist

  - by StressChicken

  I'm trying to sign an assembly in Visual Studio 2010 with our PFX file, after I enter the password for the private key I get "An attempt was made to reference a token that does not exist"

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