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• How do i plot a vertical axis with variable intervals (Flex Charts or any other)

  - by satish

  How do i plot a vertical axis with variable intervals? on a Flex Chart. I want to plot a data set that has values from 0.1 to 800. When I use a standard Numerical Axis, I have to define a interval. I tried using Log-Axis, but I am not sure how to plot the point values. Looks like something in lines of semi-log axis would be better. A axis with initial values in Numerical, but later shifting gears to a Log-Axis. Any ideas or pointers to implement this in Flex?

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• HASHREF in Perl

  - by Uri

  I'm trying to decrypt a Perl code which I'm not familiar with, somehow related to HashRef. I'm using Amazon::S3, but my question is a general Perl question. See the code below: use Amazon::S3; my $s3 = Amazon::S3-new( ... ); my $response = $s3-buckets; Documentation (here) sais, about s3-buckets: Returns undef on error, else HASHREF of results The following line is working for me, but I don't understand why: for $b in ( @ { $response-{buckets} } ) { print "bucket: " . $b-bucket . "\n"; } I'm buzzled by each operator on the first line. What type exactly are $response, $respone-{bucket}. Looks like the expression within the 'for' is an array, but I don't understand this syntax: @{ ... }?

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• very weird problem concerning date and time in silverlight + ria services

  - by Patrick LHM

  Hello Friends i'm facing a very weird problem in sliverlight 4 + RIA Services, or maybe it's not weird and i'm just a newbie anyway i hope someone here can help, the problem is the following i've created a function on the server side inside the domain service this function is very simple and has a line in it that adds the server current date and time to the database (it's an HR application and employees should sign in and out thrue it each from it's own pc ) Emp.TimeOut = system.DateTime.now (C# syntax) the weird part is that for some users it always adds 3 hours to the current time(exp if he signes out at 5 it shows 8) and for others it works perfectly. the server and all the stations in the company have exactly the same time settings and the same time zone, and anyway my fucntion is on the server side so it should no be realted to the users time. any ideas why this is happening ? i've bin trying to find out why for days now but with no luck

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• How to apply encoding when reading from a serial port

  - by rross

  I'm reading data from a serial port. I read this posting: http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/a709d698-5099-4e37-9e10-f66ff22cdd1e He is writing about many of the issues I have encounter, but in his writing he refers to using: System.Text.Encoding.GetEncoding("Windows-1252"). The problem I'm having is when and how to apply this. There are three potitional spots in my opinion. When the serial port object is define: private SerialPort comport = new SerialPort(); The Event handler: comport.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived); Or when reading the data: string data = comport.ReadExisting(); No matter where I add it. I seem to get errors. How would one use Encoding?

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• why isn't my id showing up in django admin list?

  - by FurtiveFelon

  Hi all, I have a class Task(models.Model), and i didn't define id field explicitly (since it defines automatically for you). I checked in the database, it exists for the Task. Now i would like to display it in the list via list_display property in admin.ModelAdmin. I have a bunch of things in there, only id is not showing up for any of the rows i have. Everything else works fine. Anyone know anything special i have to do to get id to display? Thanks a lot! Jason

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• Combining 2 PHP frameworks that both implement __() internationalization function

  - by mclin

  Never had a question I couldn't google until now, and it may be a doozy: I have a PHP site that combines Wordpress with Kohana - Wordpress for the blog, and Kohana for the custom functionality. This is done using a Wordpress plugin that stitches them together. This works great except they both define a __() internationalization function, with different arguments etc. so once wordpress has overridden kohana's __(), if kohana calls __() it explodes. I'm not that familiar with PHP so this might be naive, but shouldn't this stuff be namespaced? Is there anyway other than changing the source of one or the other framework to allow them to call their own respective __()?

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• help, stuck with logic variable comparison loop, javascript

  - by Jamex

  I have an input text box for search of input, the id of the text box is: id="search". if a user enters 'cat' at first and hit search. In the function, I get the value 'cat' by using the syntax: var input = document.getElementById("search").value; After that, the user enter 'dog' in the search box and hit search using the same function. The function would assign 'dog' to the input variable. How would I compare the current value (dog) to the previously entered value (cat)? I have tried to assign the original input with a statement, something like var orig = input; but that would only overwrite the original input with the new input. What is the logical approach to this problem.

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• Problem with parsing SQL into table variable

  - by Stanley Ross

  I'm using the following code to read a SQL XML Variable into a table variable. I am getting the following error. " Incorrect syntax near '.'. " Can't quite Figure it out DECLARE @LOBS Table ( LineGUID varchar(40) ) DECLARE @lg xml SET @lg = '<?xml version="1.0" encoding="utf-16" standalone="yes"?> <Table> <LOB> <LineGuid>d6e3adad-8c53-4768-91a3-745c0dae0e08</LineGuid> </LOB> <LOB> <LineGuid>4406db8f-0d19-47da-953b-afc1db38b124</LineGuid> </LOB> </Table>' INSERT INTO @LOBS(LineGUID) SELECT ParamValues.ID.value('.','VARCHAR(40)') FROM @lg.nodes('/Table/LOB/LineGuid') AS ParamValues(ID)

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• In MAYA 2009, is it possible to capture the cube rotate event?

  - by Rahul2047

  I need to call a function ( Maya-Python ) based on cube rotationX. For that I have to capture the event, programmatically. I tried using while loop but It stucks in the loop, Nothing can be done in that time. I tried theading (python), still same. Can it be done this or other way? If yes, How? Maya 2009 in Windows XP Some failed code references: import maya.cmds as cmds while (count < 90): lock = cmds.getAttr('pCube1.rotateX',lock=False) print lock count = count + 1 Here Python wise: #!/usr/bin/python import thread import time # Define a function for the thread def cubeRotateX( threadName, delay): count = 0 while count < 5: time.sleep(delay) count += 1 try: thread.start_new_thread( cubeRotateX, ("Thread-1", 2, ) ) except: print "Error: unable to start thread" while 1: pass

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• Should the spacing between parent and child containers belong to parent or child?

  - by johntrepreneur

  I'm struggling to determine where in my CSS the padding/margins should go to keep seperation between parent and child containers. For example, if you have have a parent div with two nested children and you need to have even 10px spacing between the children and also have the children be spaced 10 px from the parent; then would you add padding to parent div {padding:10px} and then just add 10px of margin between the children? Or would you leave the parent at 0 padding and have the children define what seperation they need from each other and also their parents?

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• Servlet mapping for ajax call parameters

  - by Woho87

  Hi guys! <servlet-mapping> <servlet-name>Test</servlet-name> <url-pattern>/GetContacts*</url-pattern> </servlet-mapping> I got a simple problem where I can't find any solution on the internet. I have a ajax calls that have the url http://localhost:80/Push/GetContacts?id=23..... The above servlet mapping is not correct for the AJAX call. it issues a http 404 not found call. What is the right syntax to enable my ajax call?

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• where are wrong in my php code ????

  - by user318068

  hi all, <td align="center" bgcolor="#FFFFFF"><?php echo '<label onclick="window.open('profilephp.php?member=$row['MemberID']','mywindow')">'.{$row['MemberName']}.'</label>';?><br /> <?php echo "<p align='center'><img width='100' height='100' src={$row['MemberImg']} alt='' /></p>";?></td></tr> Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in C:\xampp\htdocs\home - Copy\membercopy.php on line 141 I really don't know where it went wrong. Please help,

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• Grails unit testing domain classes with Set properties - is this safe?

  - by Ali G

  I've created a domain class in Grails like this: class MyObject { static hasMany = [tags: String] // Have to declare this here, as nullable constraint does not seem to be honoured Set tags = new HashSet() static constraints = { tags(nullable: false) } } Writing unit tests to check the size and content of the MyObject.tags property, I found I had to do the following: assertLength(x, myObject.tags as Object[]) assertEquals(new HashSet([...]), myObject.tags) To make the syntax nicer for writing the tests, I implemented the following methods: void assertEquals(List expected, Set actual) { assertEquals(new HashSet(expected), actual) } void assertLength(int expected, Set set) { assertLength(expected, set as Object[]) } I can now call the assertLength() and assertEquals() methods directly on an instance of Set, e.g. assertLength(x, myObject.tags) assertEquals([...], myObject.tags) I'm new to Groovy and Grails, so unaware how dangerous method overloading like this is. Is it safe? If so, I'm slightly* surprised that these methods (or similar) aren't already available - please let me know if they are. * I can see how these methods could also introduce ambiguity if people weren't expecting them. E.g. assertLength(1, set) always passes, no matter what the content of set

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• Database design: How should I add an information which can apply to several tables

  - by Stefan

  I am constructing a database System using Mysql, this will be an application of about 20 tables. The system contains information on farmers, we work with organic certification and need to record a lot of info for that. In my system, there are related parent-child tables for farmers, producing years and fields/areas - it's a simple representation of the real world in which farmers farm crops on their fields. I now need to add several status flags for each one of these levels: a farmer can be certified, or his field can be, or the specific year can be; each of these flags has several states and can occur a number of times. The obvious solution to this would be to add a child table to every one of these tables, and define the states there. What I wonder if there is an easier way to do this to avoid getting to many tables? Where/how would be best practise to keep that data?

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• SQL query: how to translate IN() into a JOIN?

  - by tangens

  I have a lot of SQL queries like this: SELECT o.Id, o.attrib1, o.attrib2 FROM table1 o WHERE o.Id IN ( SELECT DISTINCT Id FROM table1, table2, table3 WHERE ... ) These queries have to run on different database engines (MySql, Oracle, DB2, MS-Sql, Hypersonic), so I can only use common SQL syntax. Here I read, that with MySql the IN statement isn't optimized and it's really slow, so I want to switch this into a JOIN. I tried: SELECT o.Id, o.attrib1, o.attrib2 FROM table1 o, table2, table3 WHERE ... But this does not take into account the DISTINCT keyword. Question: How do I get rid of the duplicate rows using the JOIN approach?

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• JMS - How do message selectors work with multiple queue and topic consumers?

  - by Stephen Harmon

  Say you have a JMS queue, and multiple consumers are watching the queue for messages. You want one of the consumers to get all of a particular type of message, so you decide to employ message selectors. For example, you define a property to go in your JMS message header named, "targetConsumer." Your message selector, which you apply to the consumer known as, "A," is something like "WHERE targetConsumer = "CONSUMER_A." It's clear that consumer A will now just grab messages with the property set like it is in in the example. Will the other consumers have awareness of that, though? IOW, will another consumer, unconstrained by a message selector, grab the "CONSUMER_A" messages, if it looks at the queue before Consumer A? Do I need to apply message selectors like, "WHERE targetConsumer < "CONSUMER_A" to the others? I am RTFMing and gathering empirical data now, but was hoping someone might know off the top of their head.

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• Creating Ruby applications for Windows.

  - by Omega

  I want to develop a Windows application. Honestly I care little about cross-platforms for now (but still would be good) I want to use Ruby, since it has quite a simple syntax and is so.. well, simple and easy to learn. My application is like a "game level creator", where you can design your own level and then run it with another application which is a "game level player" by reading the project file created by the creator app. You get the idea. Now, I got a new PC and is completely clean. Absolutely no trace of my old Ruby experiments and fails. First of all, I will need to choose a GUI platform for my Ruby application! Can you recommend me one? I have heard of Shoes and Tk, but want to know what you think.

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• MySQL : incrementing text id in DB

  - by BarsMonster

  I need to have text IDs in my application. For example, we have acceptable charset azAZ09, and allowed range of IDs [aaa] - [cZ9]. First generated id would be aaa, then aab, aac, aad e.t.c. How one can return ID & increment lower bound in transaction-fashion? (provided that there are hundreds of concurrent requests and all should have correct result) To lower the load I guess it's possible to define say 20 separate ranges, and return id from random range - this should reduce contention, but it's not clear how to do single operation in the first place. Also, please note that number of IDs in range might exceed 2^32. Another idea is having ranges of 64-bit integers, and converting integer-char id in software code, where it could be done asyncroniously. Any ideas?

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• C: Pointers to any type?

  - by dragme

  I hear that C isn't so type-safe and I think that I could use that as an advantage for my current project. I'm designing an interpreter with the goal for the VM to be extremely fast, much faster than Ruby and Python, for example. Now I know that premature optimization "is the root of all evil" but this is rather a conceptual problem. I have to use some sort of struct to represent all values in my language (from number over string to list and map) Would the following be possible? struct Value { ValueType type; void* value; } I would store the actual values elsewhere, e.g: a separate array for strings and integers, value* would then point to some member in this table. I would always know the type of the value via the type variable, so there wouldn't be any problems with type errors. Now: Is this even possible in terms of syntax and typing?

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• How to get Doxygen to recognize custom latex command

  - by Halpo

  Is there a way to use extra latex packages and/or extra latex commands with Doxygen code documentation system. For example I define the shortcut in a custom sty file. \newcommand{\tf}{\Theta_f} Then I use it about 300 time in the code, which is across about a dozen files. /*! Stochastic approximation of the latent response*/ void dual_bc_genw( //... double const * const psi, ///< \f$ \psi = B\tf \f$ //... ){/* lots of brilliant code */} But how do I get the system to recognize the extra package.

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• Need help with a LINQ ArgumentOutOfRangeException in C#

  - by Christopher Klein

  Hi there, Hoping this is a nice softball of a question for a friday but I have the following line of code: //System.ArgumentOutOfRangeException generated if there is no matching data currentAnswers = new CurrentAnswersCollection().Where("PARTICIPANT_ID", 10000).Load()[0]; CurrentAnswersCollection is a strongly-typed collection populated by a view going back to my database. The problem of course is that if there is not a corresponding PARTICIPANT_ID = 10000 I get the error message. Is there a better way to write this so that I wouldn't get the error message at all? I just dont know enough about LINQ syntax to know if I can test for the existance first? thanks.

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• Need a good way to share iPhone source code on the Web.

  - by CJCraft.com

  Hi, I'm looking for a way to share some iPhone SDK source code I have with others. Goals: Share iPhone SDK source code, Objective C written in XCode. I have a good bit of source code I want to share. I'd like for it to be easy. I'd like for it to have syntax highlighting, by this I mean coloring and formatting Ideally it would allow me some room to make it "fit" into my site. I want it to look like basically another page on my site where the content is the code. It shouldn't be just a text file in other words. Here's an example where someone was able to do this for C#: http://www.opennetcf.com/library/sdf/ I guess what I want is the ability to create html documentation for all the classes, etc.

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• Dynamically reducing image dimension as well as image size in C#

  - by hanesjw

  I have an image gallery that is created using a repeater control. The repeater gets bound inside my code behind file to a table that contains various image paths. The images in my repeater are populated like this <img src='<%# Eval("PicturePath")' %>' height='200px' width='150px'/> (or something along those lines, I don't recall the exact syntax) The problem is sometimes the images themselves are massive so the load times are a little ridiculous. And populating a 150x200px image definitely should not require a 3MB file. Is there a way I can not only change the image dimensions, but shrink the file size down as well? Thanks!

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• Android TimeSqaureCalender

  - by Jack Lebbos

  i have searched for calendar libraries and i have found TimeSquare calender on this site https://github.com/square/android-times-square ive downloaded the file and add made an import for the folder in ecilipse and everithing worked fine then i have exported with gradle and imported in android studio and everything worked fine.THE problem is that i want to use this calender in an app i'm developping so i have added folder library as a module and synced with grade but when i define <com.squareup.timessquare.CalendarPickerView android:id="@+id/calendar_view" android:layout_width="match_parent" android:layout_height="match_parent" /> just in xml and run the app it crashes on setcontentview and i cannot make anything in plus can somebody tell me how to use this library correctly.

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• What is Test Driven Development? Does it require to have initial designs?

  - by Nirajan Singh

  Hello Everybody, I am very new to TDD, not yet started using it. But i know that we have to write test first and then actual code to pass the test and refactor it till good design. My concern over TDD is that where does it fit in our SDLC. Suppose i get a requirement of making order processing system. Now, without having any model & design of this system, how can i start writing test. Shouldn't we require to define the entities & its attribute to proceed. If not, is it possible to develop big system without any design. I am really very confused over it. Can anyone help me to start TDD. Thanks in advance.

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