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• DataView.RowFilter an ISO8601

  - by Ryan

  I have a DataTable (instance named: TimeTable) whose DefaultView (instance named: TimeTableView) I am trying to use to filter based on a date. Column clock_in contains an ISO8601 formatted string. I would like to select all the rows in this DataTable/DefaultView between 2009-10-08T08:22:02Z and 2009-10-08T20:22:02Z. What would I have to filter on this criteria? I tried: TimeTableView = TimeTable.DefaultView; TimeTableView.RowFilter = "clock_in >= #2009-10-08T08:22:02Z# and #2009-10-08T20:22:02Z#"; This is not working for me. Am I operating on the wrong object or is my filter syntax wrong?

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• For programming content, what simple-to-use-and-setup PHP based blog are the preferred ones?

  - by Johann Gerell

  I've since long wanted a place I can toss my programming related nuggets at. Every day I feel I solve something that I'll surely hit again in a not so distant future, but by then I most certainly will have forgotten about the previous solution I came up with. So I need to blog it down, quick and dirty, for my own documentation and memory's sake. Must be easy to set up and use. Must handle code syntax and highlighting gracefully for a number of languages, but mainly C# and C++. Must be PHP-based, because that's what my host supplies. I know and have used WordPress (not for code, though), but is it really what I want or need?

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• How does mysql define DISTINCT()

  - by goran

  AFAIK SQL defines two uses of DISTINCT keywords - SELECT DISTINCT field... and SELECT COUNT(DISTINCT field) ... However in one of web applications that I administer I've noticed performance issues on queries like SELECT DISTINCT(field1), field2, field3 ... DISTINCT() on a single column makes no sense and I am almost sure it is interpreted as SELECT DISTINCT field1, field2, field3 ... but how can I prove this? I've searched mysql site for a reference on this particular syntax but could not find any. Does anyone have a link to definition of DISTINCT() in mysql or knows about other authoritative source on this? Best

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• How do I do this simple 301 redirect from index.htm to root?

  - by elliot100

  I've read various reference sites on redirection, and to be honest I understand very little. I currently have standard WordPress mod_rewrite redirect rules in my .htaccess: # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> # END WordPress (1) Quite a few of my referrers go to a old URL http://www.example.com/index.htm, which gives them an error, and I want them to be redirected to http://www.example.com/ What do I need to do?

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• how to get individual(s) for given class/individual with given object property using SPARQL

  - by udayalkonline

  hi, I have simple ontology called "campus.owl".There is a class called"Lecturer" and which has two sub classes ,RegularLecturer and VisitingLecturer.There is a another class called "Student" which is a sibling class of Lecturer class. I have created individuals for all the classes. Student class is joind with Lecture class with "has" object property. problem I want to get some Lecturer/VisitingLecturer individuals for given student individual. Could you please help me to get this result! Thanks in advance! PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema# PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# PREFIX my: http://www.semanticweb.org/ontologies/2010/5/Ontology1275975684120.owl# SELECT ?lec WHERE { ?lec..........??? } any idea..?? Thank in advance!

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• directx 9 hlsl vs. directx 10 hlsl : syntex the same.

  - by numerical25

  For the past month or so I been busting my behind trying to learn directx. So I been mixing back back and fourth from directx 9 to directx 10. One of the major changes I've seen in the two is how to process vectors in the graphics card. one of the drastic changes I notice is how you get the gpu to recognize your structs. In directx 9 you define the Flexible Vertex Formats your typical set up would be like this... #define CUSTOMFVF (D3DFVF_XYZRHW | D3DFVF_DIFFUSE) in directx 10 I believe the equivalent is the input vertex description D3D10_INPUT_ELEMENT_DESC layout[] = { {"POSITION",0,DXGI_FORMAT_R32G32B32_FLOAT, 0 , 0, D3D10_INPUT_PER_VERTEX_DATA, 0}, {"COLOR",0,DXGI_FORMAT_R32G32B32A32_FLOAT, 0 , 12, D3D10_INPUT_PER_VERTEX_DATA, 0} }; I notice in directx 10. it is more descriptive. besides this, what are some of the drastic changes made. and is the hlsl syntax the same for both.

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• Clean URLs for static HTML files with .htaccess and mod_rewrite

  - by alistair.mp

  Hello. mod_rewrite always baffles me... can anyone tell me the rules I need to get the following clean URLs? Desired URL on the left, real URL on the right. /our-work/ => /our-work.html /our-work/some-project/ => /our-work/some-project.html /contact/ => /contact.html As you can see, I want to force trailing slashes on all URLs too. Thanks!

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• Stored Procedure for Multi-Table Insert Error: Cannot Insert the Value Null into Column

  - by SidC

  Good Evening All, I've created the following stored procedure: CREATE PROCEDURE AddQuote -- Add the parameters for the stored procedure here AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; Declare @CompanyName nvarchar(50), @Addr nvarchar(50), @City nvarchar(50), @State nvarchar(2), @Zip nvarchar(5), @NeedDate datetime, @PartNumber float, @Qty int -- Insert statements for procedure here Insert into dbo.Customers (CompanyName, Address, City, State, ZipCode) Values (@CompanyName, @Addr, @City, @State, @Zip) Insert into dbo.Orders (NeedbyDate) Values(@NeedDate) Insert into dbo.OrderDetail (fkPartNumber,Qty) Values (@PartNumber,@Qty) END GO When I execute AddQuote, I receive an error stating: Msg 515, Level 16, State 2, Procedure AddQuote, Line 31 Cannot insert the value NULL into column 'ID', table 'Diel_inventory.dbo.OrderDetail'; column does not allow nulls. INSERT fails. The statement has been terminated. I understand that I've set Qty field to not allow nulls and want to continue doing so. However, are there other syntax changes I should make to ensure that this sproc works correctly? Thanks, Sid

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• Store web content in XML using wiki markup

  - by Mike

  Does anyone have an XML style sheet that'll convert wiki-like markup to HTML? Or is that a bad idea? I only found one style sheet that'll convert HTML to wiki-like markup, view-source:http://mozile.mozdev.org/0.8/demos/html2wiki.xsl . Or is this a bad idea? Basically, instead of following strict rules with my XML tags to format my content, I thought it'd be best to have something like this: <content> \## This is my heading </content> That way I'm free to display my content however I feel without having to modify my style sheet. Any ideas?

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• How to build a programmer's wiki

  - by Llistes Sugra

  For years I've missed a wiki so everyone could describe the new tools programmed, the servers where they are running, svn information, the internal rules of programming, how-tos, code samples, etc. The wiki might be used for the dozen of programmers in the company and the externals. I've been using a pmwiki (easy install) and now I want a better approach. What wiki do you use? What plug-ins? Do you think there are better systems than wiki for this?

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• Mixing Transaction Script pattern with DDD/CQRS

  - by Herman

  Hi all, Here is the situation, in order to support our legacy system, we need to insert to a table whenever a user logs in. This is basically an CRUD operation, so it doesn't really make sense to create repository/entity/command/event for this since this doesn't tie to any business rules at all. The only benefit to create a CQRS command is that this database write can happen asynchronously under that model. Which is a better route to take? Use CQRS, and then call a stored proc. when handling that command? Just call database directly in the controller (I am using asp.net mvc)

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• Using the "naked" attribute for functions in GCC

  - by Art Spasky

  GCC documentation (http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html) states in 6.29 Declaring Attributes of Functions "naked Use this attribute on the ARM, AVR, IP2K, RX and SPU ports to indicate that the specified function does not need prologue/epilogue sequences generated by the compiler. It is up to the programmer to provide these sequences. The only statements that can be safely included in naked functions are asm statements that do not have operands. All other statements, including declarations of local variables, if statements, and so forth, should be avoided. Naked functions should be used to implement the body of an assembly function, while allowing the compiler to construct the requisite function declaration for the assembler." Can I safely call functions using C syntax from naked functions, or only by using asm?

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• Why would a error get thrown inside my try-catch?

  - by George Johnston

  I'm pushing a copy of our application over to a new dev server (IIS7) and the application is blowing up on a line inside of a try-catch block. It doesn't happen locally, it actually obey's the rules of a try-catch block, go figure. Any idea why this would be happening? Shouldn't it just be failing silently? Is there something environmental I need to enable/disable? Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Line 229: Try Line 230: Here >> : _MemoryStream.Seek(6 * StartOffset, 0) Line 232: _MemoryStream.Read(_Buffer, 0, 6) Line 233: Catch ex As IOException End Try Although it doesn't matter for answering this question, I thought I would mention that it's third party code for the Geo IP lookup.

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• Spring MVC 3.0: Avoiding explicit JAXBElement<> wrapper in method arg

  - by Keith Myers

  I have the following method and want to avoid having to explicitly show the JAXBElement< syntax. Is there some sort of annotation that would allow the method to appear to accept raw MessageResponse objects but in actuality work the same as shown below? I'm not sure how clear that was so I'll say this: I'm looking for some syntactic sugar :) @ServiceActivator public void handleMessageResponse(JAXBElement<MessageResponse> jaxbResponse) { MessageResponse response = jaxbResponse.getValue(); MessageStatus status = messageStatusDao.getByStoreIdAndMessageId(response.getStoreId(), response.getMessageId()); status.setStatusTimestamp(response.getDate()); status.setStatus("Complete"); }

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• Can anyone help me out in writing a xslt-fo for this xml file?

  - by atrueguy

  Currencies By Country Australia Australian Dollar Austria Schilling Belgium Belgium Franc Canada Canadian Dollar England Pound Fiji Fijian Dollar France Franc Germany DMark Hong Kong Hong Kong Dollar Italy Lira Japan Yen Netherlands Guilder Switzerland SFranc USA Dollar I started to write a xsl-fo to format the above xml in to a table, but I am really struggling with the flow of the tags, can any one help me out in writing a xsl-fo for this xml file? Is it possible for anyone to suggest me material for staring with xsl-fo, so that I can code my own xsl-fo., because the tags and syntax are very difficult to understand.

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• When to choose "Generate an activator..." when creating a new Eclipse plugin project

  - by Anon Support 2010

  There are lots of Eclipse RCP tutorials that begin with "Create a new plugin project..." It seems that approx. 70% of them specify checking the Generate an activator, a Java class that controls the plug-in life cycle. The others specifically say don't check that toggle. Its not clear to me, what generating an activator class does for you, when you need one, and when you don't. For being a prominent option you get every time you create a new plugin project (it seems to be set on by default) this option isn't very well explained anywhere that I have found. Any advice/rules of thumb on choosing this option when creating Eclipse plugin projects?

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• Perl Regex Output only characters that can be used as unix filename

  - by Jeff Balinsky

  I wrote a basic mp3 organizing script for myself. I know the power of regex but I suck with the syntax I have the line $outname = "/home/jebsky/safehouse/music/mp3/" . $inital . "/" . $artist . "/" . $year ." - ". $album . "/" . $track ." - ". $artist ." - ". $title . ".mp3"; All I want is a regex to change $outname so that any non safe for filename characters get replaced by an underscore Thanks Jeff

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• When should I use static methods in a class and what are the benefits?

  - by NAVEED

  I have concept of static variables but what are the benefits of static methods in a class. I have worked on some projects but I did not make a method static. Whenever I need to call a method of a class, I create an object of that class and call the desired method. Static variable in a method holds it's value even when method is executed but accessible only in its containing method but what is the best definition of static method? Is calling the static method without creating object of that class is the only benefit of static method? What is the accessible range for static method? What is the syntax to create and calling static method in php? Thanks

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• Parsing content-disposion header's filename in multipart/from-data

  - by Artyom

  Hello According to RFC, in multipart/form-data content-disposition header filename field receives as parameter HTTP quoted string - string between quites where character '\' can escape any other ascii character. Problem web browsers don't do it. IE6 sends: Content-Disposition: form-data; name="file"; filename="z:\tmp\test.txt" Instead of expected Content-Disposition: form-data; name="file"; filename="z:\\tmp\\test.txt" Which should be parsed as z:tmptest.txt according to rules instead of z:\tmp\test.txt. Firefox, Konqueror and Chrome don't escape " characters for example: Content-Disposition: form-data; name="file"; filename=""test".txt" Instead of expected Content-Disposition: form-data; name="file"; filename="\"test\".txt" So... how would you suggest to deal with this issue?

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• Should you remove all warnings in your Verilog or VHDL design? Why or why not?

  - by Brian Carlton

  In (regular) software I have worked at companies where the gcc option -Wall is used to show all warnings. Then they need to be dealt with. With non-trivial FPGA/ASIC design in Verilog or VHDL there are often many many warnings. Should I worry about all of them? Do you have any specific techniques to suggest? My flow is mainly for FPGAs (Altera and Xilinx in particular), but I assume the same rules would apply to ASIC design, possibly more so due to the inability to change the design after it is built.

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• Choosing MooTools over Google closure?

  - by Shekhar

  I am in a process to select javascript library for our new web application. This app is not very UI heavy but has forms, reports, search, calendars, tabs and target multiple countries like most web apps. We are a tiny team. Biggest concern is maintainability and readability of the code. We are Python programmers. After evaluating many other javascript frameworks we have narrowed down to mootools and google-closure. We loved mootools syntax. It took us no time to learn. It's like Python. On other hand we were stumped seeing private/public in google closure. It's tempting to go for mootools however, I would love to hear from you about specific advantages these frameworks offer over each other.

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• How to preserve whitespace indentation of text enclosed in HTML <pre> tags excluding the current indentation level of the <pre> tag in the document?

  - by Michael Barton

  I'm trying to display my code on a website but I'm having problems preserving the whitespace indentation correctly. For instance given the following snippet: <html> <body> Here is my code: <pre> def some_funtion return 'Hello, World!' end </pre> <body> </html> This is displayed in the browser as: Here is my code: def some_funtion return 'Hello, World!' end When I would like it displayed as: Here is my code: def some_funtion return 'Hello, World!' end The difference is that that current indentation level of the HTML pre tag is being added to the indentation of the code. I'm using nanoc as a static website generator and I'm using google prettify to also add syntax highlighting. Can anyone offer any suggestions?

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• Updating Excel Cell with Non-Numeric Data in C#

  - by kbo206

  I have a query that is ExcelQuery = "Update [Sheet1$] set CITIZEN_ID = #" + value + " where CITIZEN_ID = " + value; As you can see, I'm essentially just appending a "#" onto the CITIZEN_ID field. value is a int/numeric value. So if I had "256" in the CITIZEN_ID column it would be converted to "#256" When I execute this I get an OleDbException Syntax error in date in query expression so I surrounded part of the query in single quotes like this, ExcelQuery = "Update [Sheet1$] set CITIZEN_ID = '#" + value + "' where CITIZEN_ID = " + value; With that I get yet another OleDbException this time with, Data type mismatch in criteria expression. I'm guessing for some reason the CITIZEN_ID fields don't want to take anything besides a plain number. Is there any way I can remedy this to get that pound symbol in? Thanks!

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• NHibernate cascade and inverse

  - by Kordonme

  I have three mappings as follows: public MainChapterMap() { // other properties HasMany(x => x.ClientSpecific).KeyColumn("MainChapterId"); } public MainChapterClientMap() { // other properties References(x => x.MainChapter).Column("MainChapterId"); HasMany(x => x.Details).KeyColumn("MainChapterClientId"); } public MainChapterClientDetailMap() { // other properties References(x => x.MainChapterClient).Column("MainChapterClientId"); } MainChapter has many client-specific chapters. The client-specific chapters (MainChapterClient) has many translations (MainChapterClientDetail) The dele rules should be as follow: When deleting a MainChapter Delete the MainChapterClient row Delete the MainChapterClientDetail row(s) When deleting a MainChapterClient Do NOT delete the MainChapter row Delete the MainChapterClientDetail row(s) When deleting a MainChapterClientDetail Do NOT delete the MainChapter row Do NOT delete the MainChapterClientDetail row(s) But I no matter what I end up getting this error: deleted object would be re-saved by cascade (remove deleted object from associations)[Entities.MainChapterClient#39] I'm not sure how to set up my cascades anymore. Any help are more than welcomed!

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• jquery validation problems

  - by CoffeeCode

  to custom validate an input i wrote a script: function cardNumberCheck(value, element) { var res = false; $.get("/CaseHistories/ValidateCardNumber", { caseHistoryId: $('#CaseHistory_Id').val(), cardNumber: $('#CaseHistory_CardNumber').val() }, function(data) { res = data }); //alert(res) => works fine return true/false return res; } $.validator.addMethod("cardValidate", cardNumberCheck, "invalid"); if ($('#CaseHistory_CardNumber').is("form *")) { //<= check if elem is in a form $('#CaseHistory_CardNumber').rules("add", { required: true, cardValidate: true, messages: { required: "*", cardValidate: "invalid" } }); } EDIT: the required rule works fine, but my validation method doesn't dispalt the message. and the submit works even if the elements data havent passed the cardNumberCheck validation whats not right here?

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