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  • Missing backslashes in filename using C#

    - by CL4NCY
    Hi, I have a string literal as follows: string filename = @"C:\myfolder\myfile.jpg"; When I use File.Exists(filename) it works most of the time but sometimes I get an error saying the following file doesn't exist: C:myfoldermyfile.jpg Something seems to strip the backslashes out of the filename. This code is sometimes accessed via an ajax request. Does anyone know why/how this could be happening? Edit: Here is a more detailed version of the code. public class Feeds { public static string ftpDir = @"C:\website\Feeds\"; } public class Feed { public static void run(string name) { if (!Directory.Exists(Feeds.ftpDir + name)){ Response.Write("Feed doesn't exist '" + Feeds.ftpDir + name + "'"); return; } //run feed... } }

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  • Class hierarchy problem (with generic's variance!)

    - by devoured elysium
    The problem: class StatesChain : IState, IHasStateList { private TasksChain tasks = new TasksChain(); ... public IList<IState> States { get { return _taskChain.Tasks; } } IList<ITask> IHasTasksCollection.Tasks { get { return _taskChain.Tasks; } <-- ERROR! You can't do this in C#! I want to return an IList<ITask> from an IList<IStates>. } } Assuming the IList returned will be read-only, I know that what I'm trying to achieve is safe (or is it not?). Is there any way I can accomplish what I'm trying? I wouldn't want to try to implement myself the TasksChain algorithm (again!), as it would be error prone and would lead to code duplication. Maybe I could just define an abstract Chain and then implement both TasksChain and StatesChain from there? Or maybe implementing a Chain<T> class? How would you approach this situation? The Details: I have defined an ITask interface: public interface ITask { bool Run(); ITask FailureTask { get; } } and a IState interface that inherits from ITask: public interface IState : ITask { IState FailureState { get; } } I have also defined an IHasTasksList interface: interface IHasTasksList { List<Tasks> Tasks { get; } } and an IHasStatesList: interface IHasTasksList { List<Tasks> States { get; } } Now, I have defined a TasksChain, that is a class that has some code logic that will manipulate a chain of tasks (beware that TasksChain is itself a kind of ITask!): class TasksChain : ITask, IHasTasksList { IList<ITask> tasks = new List<ITask>(); ... public List<ITask> Tasks { get { return _tasks; } } ... } I am implementing a State the following way: public class State : IState { private readonly TaskChain _taskChain = new TaskChain(); public State(Precondition precondition, Execution execution) { _taskChain.Tasks.Add(precondition); _taskChain.Tasks.Add(execution); } public bool Run() { return _taskChain.Run(); } public IState FailureState { get { return (IState)_taskChain.Tasks[0].FailureTask; } } ITask ITask.FailureTask { get { return FailureState; } } } which, as you can see, makes use of explicit interface implementations to "hide" FailureTask and instead show FailureState property. The problem comes from the fact that I also want to define a StatesChain, that inherits both from IState and IHasStateList (and that also imples ITask and IHasTaskList, implemented as explicit interfaces) and I want it to also hide IHasTaskList's Tasks and only show IHasStateList's States. (What is contained in "The problem" section should really be after this, but I thought puting it first would be way more reader friendly). (pff..long text) Thanks!

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  • SQL Server Multiple Joins Are Taxing The CPU

    - by durilai
    I have a stored procedure on SQL Server 2005. It is pulling from a Table function, and has two joins. When the query is run using a load test it kills the CPU 100% across all 16 cores! I have determined that removing one of the joins makes the query run fine, but both taxes the CPU. Select SKey From dbo.tfnGetLatest(@ID) a left join [STAGING].dbo.RefSrvc b on a.LID = b.ESIID left join [STAGING].dbo.RefSrvc c on a.EID = c.ESIID Any help is appreciated, note the join is happening on the same table in a different database on the same server.

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  • Why does an onclick property set with setAttribute fail to work in IE?

    - by Aeon
    Ran into this problem today, posting in case someone else has the same issue. var execBtn = document.createElement('input'); execBtn.setAttribute("type", "button"); execBtn.setAttribute("id", "execBtn"); execBtn.setAttribute("value", "Execute"); execBtn.setAttribute("onclick", "runCommand();"); Turns out to get IE to run an onclick on a dynamically generated element, we can't use setAttribute. Instead, we need to set the onclick property on the object with an anonymous function wrapping the code we want to run. execBtn.onclick = function() { runCommand() }; BAD IDEAS: You can do execBtn.setAttribute("onclick", function() { runCommand() }); but it will break in IE in non-standards mode according to @scunliffe. You can't do this at all execBtn.setAttribute("onclick", runCommand() ); because it executes immediately, and sets the result of runCommand() to be the onClick attribute value, nor can you do execBtn.setAttribute("onclick", runCommand);

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  • How to install MySQLdb package? (ImportError: No module named setuptools)

    - by Verrtex
    Hi All, I am trying to install MySQLdb package. I found the source code here. I did the following: gunzip MySQL-python-1.2.3c1.tar.gz tar xvf MySQL-python-1.2.3c1.tar cd MySQL-python-1.2.3c1 python setup.py build As the result I got the following: Traceback (most recent call last): File "setup.py", line 5, in ? from setuptools import setup, Extension ImportError: No module named setuptools Does anybody knows how to solve this problem? By the way, if I am able to do the described step, I will need to do the following: sudo python setup.py install And I have no system-administrator-rights. Do I still have a chance to install MySQLdb? Thank you.

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  • scheduled task or windows service

    - by czuroski
    Hello, I have to create an app that will read in some info from a db, process the data, write changes back to the db, and then send an email with these changes to some users or groups. I will be writing this in c#, and this process must be run once a week at a particular time. This will be running on a Windows 2008 Server. In the past, I would always go the route of creating a windows service with a timer and setting the time/day for it to be run in the app.config file so that it can be changed and only have to be restarted to catch the update. Recently, though, I have seen blog posts and such that recommend writing a console application and then using a scheduled task to execute it. I have read many posts talking to this very issue, but have not seen a definitive answer about which process is better. What do any of you think? Thanks for any thoughts.

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  • xsd:datetime and XmlGregorianCalendar causes NullPointerException

    - by Draemon
    The following works: public Date getDate() { return date; } and produces something like: <date>2010-03-23T17:43:50.879Z</date> And I can use an XmlGregorianCalendar to return xsd:date or xsd:time types fine: @XmlSchemaType(name="date") public XmlGregorianCalendar getDate() { return date; } which produces something like: <date>2010-03-23</date> But trying to return xsd:datetime like so: @XmlSchemaType(name="datetime") public XmlGregorianCalendar getDate() { return date; } Causes this stack trace: java.lang.NullPointerException at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl.checkXmlGregorianCalendarFieldRef(RuntimeBuiltinLeafInfoImpl.java:864) at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl.access$200(RuntimeBuiltinLeafInfoImpl.java:111) at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl$13.print(RuntimeBuiltinLeafInfoImpl.java:536) ...snip... at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619) Which doesn't mention my code at all. I'm using tomcat 6.0.24, java 1.6.0_16-b01

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  • Executing php with crontab

    - by Stefan Konno
    Hi everyone. I'm trying to run a php-script on a scheduled basis. So I'd thought crontab was a good idea. The server I'm using is on Linux which I'm not that familiar with. So the problem I'm having is, I don't know how make the script executable from php. I need to reference the script, or put it into a folder that can run php from the command line. So I don't know what path to give my crontab, for example: 5 * * * * var/www/some/path/script.php I found some vague information about this php executable being found in /usr/bin/php But I can't find any php file in there, maybe I don't have it installed? My php5 and apache installation is in: /etc/php5 So my question becomes, is there anyway to execute a php-script with crontab in any other folder, or do I just lack the php executable in usr/bin/php?

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  • UI Terminology - Enabled vs. Active

    - by Pamela
    When designing a feature that can be accessed by different user levels, I'm wondering how the use of "enabled" versus "active" will work. If I'm an administrator, it means I have the ability to turn on and off a feature. Does this mean the feature is enabled for me or active? Once I turn this feature on, is it then enabled or active? Terminology is the pits. On the subject, does anyone know of a reference book or site dedicated to questions regarding standard terminology for UIs? Thanks a million!

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  • Rails 3.o MYSQL connection problem

    - by palani
    Hi I have installed RVM in my ubunut linux box and configured the Rails 3 app in that ... i can able to start app server... my problem is when i invoke http://localhost:3000 . i getting the follwing error Mysql::Error (Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)): I checked mysqld service is running well. I checked my database.yml file .... the defined well development: adapter: mysql encoding: utf8 reconnect: false database: test_development username: root password: admin socket: /var/run/mysqld/mysqld.sock my installed mysql gem version is 2.8.1.... I really don't know what is the problem here....

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  • launching java test bycommand line

    - by lamisse
    I created runner.bat to launch one java test it contains : path to java,classpath org.junit.runner.JUnitCore package.class when I launch it : FAILURES Tests run: 1, Failures: 1 Exception in thread "Thread-0" java.lang.IllegalStateException: Shutdown in progress at java.lang.ApplicationShutdownHooks.add(Unknown Source) at java.lang.Runtime.addShutdownHook(Unknown Source) at com.sun.imageio.stream.StreamCloser$2.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.imageio.stream.StreamCloser.addToQueue(Unknown Source) at javax.imageio.stream.FileCacheImageInputStream.<init>(Unknown Source) at com.sun.imageio.spi.InputStreamImageInputStreamSpi.createInputStreamInstance(Unknown Source) at javax.imageio.ImageIO.createImageInputStream(Unknown Source) at javax.imageio.ImageIO.read(Unknown Source) at com.polyspace.util.guicomponent.CompositePanel.setBufferedImage(Unknown Source) at com.polyspace.util.guicomponent.CompositePanel.<init>(Unknown Source)

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  • Deployment error

    - by Rakesh
    Hi all i am getting deployment error when i try to run my app in the device. it says "no provisioning ios devices are connected". I have ios sdk 4.1 installed on my mac and in the device the version of ios is 4.2. I have conected my device to Mac. Can i run my app under these conditions or i need to update ios sdk to 4.2 in Mac also. if yes then is there any update available so that i can update my sdk from version 4.1 to 4.2 or i have to download the whole new version of 4.2 (almost 3.5 GB). Please help.

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  • How to make mysql accept connections externally

    - by Tam
    I have a VPS and I want to make mysql DB accept connection externally (from my PC for instance). I have Debian Linux installed on the server. I checked some tutorials online and they said to comment out: bind-address = 127.0.0.1 But this didn't seem to help! is there anything specific for VPSs? or Am I missing something else? The command that runs mysql is: /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-external-locking --port=3306 --socket=/var/run/mysqld/mysqld.sock

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  • RNDC fails: permission denied

    - by pawz
    Named works great. It creates a pid in /var/run/named/named.pid as expected. It is listening on port 953 as shown by the log: Apr 20 14:42:38 guchuko named[9115]: command channel listening on 127.0.0.1#953 But whenever I try to run "rndc reload" I get: rndc: 'reload' failed: permission denied What file is it being denied permission to ? It doesn't log anything so I don't know why it's not working. I've compiled bind 9.4-ESV-R1 from source and I've patched it with the mysql mod. my named.conf: options { directory "/var/bind"; forwarders { 203.82.213.101; 203.188.144.1; }; listen-on-v6 { none; }; listen-on { 127.0.0.1; 192.168.0.6; }; pid-file "/var/run/named/named.pid"; }; logging { channel simple_log { file "/var/log/named.log" versions 3 size 5m; severity debug 5; print-time yes; print-severity yes; print-category yes; }; category default { simple_log; }; }; zone "." IN { type hint; file "named.ca"; }; zone "localhost" IN { type master; file "pri/localhost.zone"; allow-update { none; }; notify no; }; include "/etc/rndc.key" my rndc.conf options { default-server 127.0.0.1; default-key "rndc-key"; }; server 127.0.0.1 { key "rndc-key"; }; include "/etc/rndc.key"; my rndc.key: key "rndc-key" { algorithm hmac-md5; secret "XFc8C+yCLK0mIheTSBj41g=="; };

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  • makefile compilation problem

    - by mistique
    He I have a problem with a makefile. I have three classes. They do pretty simple stuff. One does an addition on a subtraction, and the last one will instantiate the two and simply print the resulted addition and subtraction. Now when I create my makefile, I compile my Plus.java and my Minus.java but don't know how to compile the main class because it depends on the previous two. I want to compile and run it from the makefile if it's possible. I get the above results when I try to run make: javac -g Plus.class Minus.class javac: invalid flag: Plus.class Usage: javac use -help for a list of possible options make: * [Operation.class] Error 2 I don't know how to procede, please forgive me if my question is to simple but I am new working with these stuff. I've searched many sites but with no answer.

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  • Mathematica Plot3D does not produce a plot when graphing a user-defined function?

    - by pythonscript
    I'm writing a simple Mathematica implementation of the black-scholes model and using Plot3D to plot the pricing surface. However, when I run this code, no plot is produced. My call and put functions to produce correct values when run separately, but no plot is produced. Code: Clear[d1, d2, call, put, stockPrice, strikePrice, riskFreeRate, timeToExp, volatility] d1[stockPrice_, strikePrice_, riskFreeRate_, timeToExp_, volatility_] := (Log[stockPrice / strikePrice] + (riskFreeRate + 0.5*volatility^2)*timeToExp) / (volatility * Sqrt[timeToExp]) d2[stockPrice_, strikePrice_, riskFreeRate_, timeToExp_, volatility_] := d1[stockPrice, strikePrice, riskFreeRate, timeToExp, volatility] - volatility*Sqrt[timeToExp] call[stockPrice_, strikePrice_, riskFreeRate_, timeToExp_, volatility_] := stockPrice * CDF[NormalDistribution[0, 1], d1[stockPrice, strikePrice, riskFreeRate, timeToExp, volatility]] - strikePrice * Exp[-riskFreeRate*timeToExp] *CDF[NormalDistribution[0, 1], d2[stockPrice, strikePrice, riskFreeRate, timeToExp, volatility]] Plot3D[call[stockPrice, 500, 0.0030, timeToExp, 0.39], {stockPrice, 10, 1000}, {timetoExp, 0.0833333, 5}] Other plots, like this sample from the reference, do work. Plot3D[{x^2 + y^2, -x^2 - y^2}, {x, -2, 2}, {y, -2, 2}, RegionFunction -> Function[{x, y, z}, x^2 + y^2 <= 4], BoxRatios -> Automatic]

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  • "Ant all" not working for me

    - by bobjink
    I have got involved in a project. This project uses ant which is not something I am comfortable with. I have checked out the source code and tried running ant on the most outer directory. Running 'ant' in commando prompt takes 1 sec and I get a BUILD SUCCESFULL message. If I run 'ant all' I get a BUILD FAILED. Java.io.IOExceptio: Cannot run program "ant": CreateProcess=2, the system cannot find the file specified and then a long stacktrace. Most of the people on the project runs OS-X while I use Windows XP. Any help or information is appreciated :)

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  • Website settings for running visual web as root?

    - by Curtis White
    Scott Gu explains how to run visual web developer using a root path, here: http://weblogs.asp.net/scottgu/archive/2006/12/19/tip-trick-how-to-run-a-root-site-with-the-local-web-server-using-vs-2005-sp1.aspx This worked exactly as he described in one instance for me. But, today I do not see this option. More over, I do not think I have a solution file, and I think that has something to do with it. I'm aware there are web application projects and web site model, and web site model is basically just a "directory". But can web site model, also, have a solution file for this setting or not a solution file? What determines that? I am interested in using this method on on a web site, i.e directory only model.

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  • Server returned HTTP response code: 500 for URL

    - by user617162
    java.io.IOException: Server returned HTTP response code: 500 for URL: http://ww .huadt.com.cn/zh-cn/i/l/@357671030745308@V500@0000@AUTOLOW@1@11d590f7$GPRMC,065 48.000,A,3959.8587,N,11617.2447,E,0.00,55.32,210311,,,A*56@@ at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown S urce) at hdt.SendCmdToP.Sendplatform(SendCmdToP.java:67) at hdt.SendCmdToP.process(SendCmdToP.java:198) at hdt.SendCmdToP.run(SendCmdToP.java:131) java.lang.NullPointerException at hdt.SendCmdToP.Sendplatform(SendCmdToP.java:91) at hdt.SendCmdToP.process(SendCmdToP.java:198) at hdt.SendCmdToP.run(SendCmdToP.java:131) Appeared pointer, and 500 wrong with the closure of the abnormal, a firewall relationship? If not is it code problems? Please help everybody see how to solve the problem. thanks?

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  • Cross-compiling a Python script on Linux into a Windows executable

    - by Chinmay Kanchi
    I have a Python script that I'd like to compile into a Windows executable. Now, py2exe works fine from Windows, but I'd like to be able to run this from Linux. I do have Windows on my development machine, but Linux is my primary dev platform and I'm getting kind of sick of rebooting into Windows just to create the .exe. Any ideas? PS: I am aware that py2exe doesn't exactly compile the python file as much as package your script with the Python interpreter. But either way, the result is that you don't need Python installed to run the script.

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  • Perl: Recursively rename all files and directories

    - by user305801
    I need to recursively rename every file and directory. I convert spaces to underscores and make all file/directory names to lowercase. How can I make the following script rename all files in one run? Currently the script needs to be run several times before all the files/directories are converted. The code is below: #!/usr/bin/perl use File::Find; $input_file_dir = $ARGV[0]; sub process_file { $clean_name=lc($_); $clean_name=~s/\s/_/g; rename($_,$clean_name); print "file/dir name: $clean_name\n"; } find(\&process_file, $input_file_dir);

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