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• Why does asp.net mvc form submits itself on button clicks when javascript function error?

  - by melaos

  hi guys, i'm new to the asp.net mvc, and while working on this, i used very basic asp.net mvc stuff like beginform, etc. i used a lot of jquery codes this round for client side validation, ajax data retrieval, and other gui works. and i used a combinations of html inputs buttons, etc and the asp.net mvc type of controls. what i noticed is that whenever i click on a button control, which sometimes are tied to either jquery oclick events, when there's a javascript error, the page will just go on and submit. why is this happening and what am i missing here? my bad for the dumb questions.. thanks

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• Escape characters during paste in vim

  - by Michael Anderson

  I copy stuff from output buffers into C++ code I'm working on in vim. Often this output gets stuck into strings. And it'd be nice to be able to escape all the control characters automatically rather than going back and hand editing the pasted fragment. As an example I might copy something like this: error in file "foo.dat" And need to put it into something like this std::string expected_error = "error in file \"foo.dat\"" I'm thinking it might be possible to apply a replace function to the body of the last paste using the start and end marks of the last paste, but I'm not sure how to make it fly.

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• How do I get a full Magento session in an external script? (Specifically, Catalog Rules)

  - by Laizer

  I'm running an external script that loads up a Magento session. Within that script, I'm loading products and grabbing a bunch of properties. The one issue is that getFinalPrice() does not apply the catalog rules that apply to the product. I'm doing everything I know to set the session, even a bunch of stuff that I think is superfluous. Nothing seems to get these rules applied. Here's a test script: require_once "app/Mage.php"; umask(0); $app = Mage::app("default"); $app->getTranslator()->init('frontend'); //Probably not needed Mage::getSingleton('core/session', array('name'=>'frontend')); $session = Mage::getSingleton("customer/session"); $session->start(); //Probably not needed $session->loginById(122); $product = Mage::getModel('catalog/product')->load(1429); echo $product->getFinalPrice(); Any insight is appreciated.

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• Asp.net Website Performance Improvement Checklist

  - by Jordon

  Hello Friends, I have asp.net website name http://www.go4sharepoint.com I have tried almost all ways to improve performance of this site, I have even check firebug and page speed addon on Firefox, but somehow i am not pleased with the result. I also tried like removing whitespace, remove viewstate, optimizing code which renders it, applied GZip, I have also no heavy session variables used, but still when i compare with other popular websites it is not upto the mark. I have check CodeProject website and was surprise that even though they have lot of stuff displayed there website is loading fast and they also have good loading rate. To all experts, Please suggest me where i am going wrong in my development. Thank you.

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• How can I reuse my javascript code between client and server?

  - by Chris Farmer

  I have some javascript code that includes an ANTLR-generated lexer and parser, and some associated syntax tree evaluation functionality. This code runs in the browser in my web app to support users who author code snippets which process scientific data. Now I'd like to do some additional background processing on the server using the same generated parser. I would prefer not to have to re-implement this stuff in C# and have multiple bits of code that did the exact same thing. Performance isn't as critical to me as eliminating duplication, since this is a background process. So, how can I call into my javascript code from C#? And how can I format my script so that it plays nicely with my .NET web app?

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• What's an elegant way to conditionally add a class to an HTML element in a view?

  - by ryeguy

  I occasionally have to add a class to an html element based on a condition. The problem is I can't figure out a clean way of doing it. Here's an example of the stuff I've tried: <div <%= if @status = 'success'; "class='ok'"; end %>> some message here </div> OR <% if @status == 'success' %> <div class='success'> <% else %> <div> <% end %> some message here </div> I don't like the first approach because it's crowded looking and hard to read. I don't like the second approach because the nesting is screwed up. It'd be nice to put it in the model, (something like @status.css_class), but that doesn't belong there. What do most people do?

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• Getting a scriptmanager into a dynamically rendered page

  - by AndreasKnudsen

  Hi, We are rendering usercontrols dynamically like this: public string RenderControl(string pathcontrol) { string html; var page = new Page(); var control = page.LoadControl(path); page.Controls.Add(control); // do stuff to the control (give it some data to work on) using (var writer = new StringWriter()) { HttpContext.Current.Server.Execute(page, writer, false); html = writer.ToString(); } return html; } This lets us the same user controls when rendering pages normally as we do when rendering responses to ajax calls. However, when adding controls which themselves contain a scriptmanagerProxy we run into the problem that the newed up Page object doesn't contain either a ScriptManager or the HtmlForm in which the ScriptManager needs to run. Is there any way around this? Yours Andreas

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• Birt Global Integer

  - by matschie

  Hi there I have a Birt Report which read some stuff from a database. After that i want to increment a global Integer for every Detailrow that is loaded. So far i have initialized a global Integer with the following lines: importPackage(Packages.java.lang); reportContext.setPersistentGlobalVariable("minTotalPlus", new Integer(0)); After that i added the following line into a field in my detail row: reportContext.setGlobalVariable("minTotalPlus", new Integer reportContext.getGlobalVariable("minTotalPlus")) + 1); When i preview the report i get an "java.lang.NumberFormatException: null" which means that the global variable is null. Why is that so? How could I fix that?

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• Converting delimited string to multiple values in mysql

  - by epo

  I have a mysql legacy table which contains an client identifier and a list of items, the latter as a comma-delimited string. E.g. "xyz001", "foo,bar,baz". This is legacy stuff and the user insists on being able to edit a comma delimited string. They now have a requirement for a report table with the above broken into separate rows, e.g. "xyz001", "foo" "xyz001", "bar" "xyz001", "baz" Breaking the string into substrings is easily doable and I have written a procedure to do this by creating a separate table, but that requires triggers to deal with deletes, updates and inserts. This query is required rarely (say once a month) but has to be absolutely up to date when it is run, so e.g. the overhead of triggers is not warranted and scheduled tasks to create the table might not be timely enough. Is there any way to write a function to return a table or a set so that I can join the identifier with the individual items on demand?

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• How do I use namespaces in Backbone with RequireJs

  - by dev.pus

  I am unsure how I use namespaces in an modularized (RequireJs) Backbone environment. I have thought a bit how it could look like but am totally unsure if this is the right way. app.js (getting executed by main.js) define('App', ['underscore', 'backbone', 'Router'], function( _, Backbone, Router){ function initialize(){ var app = {}; // app is the global namespace variable, every module exists in app app.router = new Router(); // router gets registered Backbone.history.start(); } return { initialize: initialize } }); messages.js define('MessageModel', ['underscore', 'backbone', 'App'], function(_, Backbone, App){ App.Message.Model; // registering the Message namespace with the Model class App.Message.Model = Backbone.Model.extend({ // the backbone stuff }); return App; }); Is this the right approach or am I fully on the wrong way (if yes please correct me!)

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• Ipad, closed environment and threat to privacy

  - by Akshay Bhat

  I had an unusual question about ipad, Since ipad environment is closed and does not allows installation of diagnostic and security related programs. How can then we be sure that any of the software installed on ipad is not infringing upon our privacy by doing stuff such as homing back information, etc. We cant install a packet tracer or any other software to check for attacks on privacy. Also given Apples poor track record (the safari browser was broken in one day), I don't think trusting apple solely would be a good idea. This might not seem to be a big issue but for business users it would be a significant concern.

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• Scala wont pattern match with java.lang.String and Case Class

  - by Stefan

  Hello fellow Scala Programmers I have been working with Scala for some month now, however I have a problem with some properly basic stuff, I am hoping you will help my out with it. case class PersonClass(name: String, age: Int) object CaseTester { def main(args:Array[String]) { val string = "hej" string match { case e:String => println(string) case PersonClass => println(string) } } } When I am doing like this I get error: pattern type is incompatible with expected type; found : object PersonClass required: java.lang.String case PersonClass = println(string) And if I then change the second line in the pattern matching to the following: case e:PersonClass => println(string) I then get the error: error: scrutinee is incompatible with pattern type; found : PersonClass required: java.lang.String case e:PersonClass = println(string) However if I change the string definition to the following it compiles fine in both cases. val string:AnyRef = "hej"

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• PDF Corruption When Sending with Microsoft Products

  - by Winner

  I have the same PDF corruption problem in two different offices that I am the tech support for. Office 1: Started in the middle of December. PDF received from outside the office and is viewable with no problems. I have no control over how it is created. If it is forwarded to anyone else, the PDF is corrupted. I have forwarded it to multiple people in the office. I have tried viewing with Reader 8, 9, Sumatra and Fox IT. I have tried forwarding to Gmail and their viewer says it is corrupted. If I save the PDF and create a new email, it will be corrupted when sent using Outlook 2003, Outlook 2007, Microsoft Live Mail and Outlook Express. If I create the email using Thunderbird 3, Gmail or the webclient Iclient for IPSwitch IMail it will not be corrupted. I have confirmed the same results when using our IMail SMTP and also Using Gmail as the SMTP server. To be clear, if I created in Thunderbird, Gmail or Iclient and received on any of the MS products, it will be viewable. This office receives PDFs daily from multiple sources. There is only a small subset that are having this problem. So far they problem PDFs are from two different companies they deal with, but not all of the PDFs are bad. Office 2: PDFs are created by a management system. I'm not sure what engine is used to create them. Same exact same issues. At both offices, I noticed that the file size is wrong. One small PDF the proper file size is 12kb for the PDF when it's viewable, when it shows up corrupted it is only 8kb. We handle the email for both offices. Both are POP servers, not Exchange. IMail was updated after these issues start. I have tried different SMTP servers and it still seems to happen only when using Microsoft products to send. Anyone else having problems with PDFs getting corrupted? Any ideas how to find out a resolution?

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• Spring online repository for Maven

  - by Fortyrunner

  I've just installed Maven2 for the first time. By default it pulls down a few useful jars into a local project: jakarta-commons, junit etc. I wanted to pull in the latest Spring release (2.5.6 at the time of writing). But the online repositories I looked at (iBiblio and Maven) only had much older versions of Spring libraries. Are there any other repositories that are kept up to date? What is the best practice here; can we maintain them ourselves? I would be prepared to help out maintaining this stuff!

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• In C: sending func pointers, calling the func with it, playing with EIP, jum_buf and longjmp

  - by Yonatan

  Hello Internet ! I need to make sure i understand some basic stuff first: 1. how do i pass function A as a parameter to function B? 2. how do i call function A from inside B ? now for the big whammy: I'm trying to do something along the lines of this: jmp_buf buf; buf.__jmpbuf[JB_PC] = functionA; longjmp(buf,10); meaning that i want to use longjmp in order to go to a function. how should i do it ? thank you very much internet people ! Yonatan

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• error C2065: undeclared identifier

  - by karikari

  Currently, I have this function inside my other cpp file: UINT32 functionHtml(const wchar_t *url) { WinHttpClient client(url); client.SendHttpRequest(); wstring httpResponseHeader = client.GetHttpResponseHeader(); wstring httpResponse = client.GetHttpResponse(); writeToLog(httpResponse.c_str()); return 0; } I have another cpp file, and I would like to execute the stuff inside the above file. Here is the code for the other file: HRESULT CButtonDemoBHO::onDocumentComplete(IDispatch *pDisp, VARIANT *vUrl){ ATLTRACE("CButtonDemoBHO::onDocumentComplete %S\n", vUrl->bstrVal); // <---- i would like to call funtionHTML here or .. if (isMainFrame(pDisp)){ m_normalPageLoad=false; // <---- here.. MessageBox(m_hWnd, L"Main Document has completed loading", L"Document Complete", MB_OK); return S_OK; } return S_OK; } I got the error C2065: 'url' : undeclared identifier. Need help.

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• Best way to plan a task ?

  - by Indigo Praveen

  Hi All, As I am very new to programming, I am very curious about learning the best ways/practices of programming. Whenever I want to write any program , I strat directly with coding while some guys say that you should plan your program first before starting the code. But I don't understand the real value of creating the class diagrams and all that kind of stuff coz I think that ultimately I have to write the code. Can you guys please share your experiences about how you are doing your programming means what is your first step when you start an application.

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• How do I implement a custom Brush in WPF?

  - by MojoFilter

  Where can I find out enough info about how Brushes work to implement my own System.Windows.Media.Brush? I can handle all of the freezable baggage, but it's not really obvious what I need to override to get it to work. Yeah, so I didn't mean that I want to use a predefined brush. I want to extend System.Windows.Media.Brush, which is an abstract class. This is all purely for my own edification. I'm not even sure what kind of brush I could make. I was just trying to learn how brushes work. As in: public AwesomeBrush : Brush { protected override Freezable CreateInstanceCore() { return new AwesomeBrush(); } ... // concrete brush stuff }

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• Include Problem with Objective-C++ and OpenGL

  - by Stephen Furlani

  Hello, I feel silly asking this but I've searched for 'include problems' and have only come up with basic stuff. I'm working with an API that includes/imports in their header files (ARGH! HATE ANGER DESTRUCTION). One of these Obj-C files #import "OpenGL/CGLMacros.h" which #define's things like glMatrixMode(...); In my code I need the glMatrixMode(...); from #include "OpenGL/gl.h" but it won't access it! I can't edit the headers from the (poorly) coded API to put the includes in their definition files. What can I do? If the CGLMacros.h file starts out like /* Copyright: (c) 1999 by Apple Computer, Inc., all rights reserved. */ #ifndef _CGLMACRO_H #define _CGLMACRO_H Can I put a #define _CGLMACRO_H before I include the offending API header file? -Stephen

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• How do I split an NSString by each character in the string?

  - by Robert Höglund

  I have the following code, which works as I expect. What I would like to know if there is an accepted Cocoa way of splitting a string into an array with each character of the string as an object in an array? - (NSString *)doStuffWithString:(NSString *)string { NSMutableArray *stringBuffer = [NSMutableArray arrayWithCapacity:[string length]]; for (int i = 0; i < [string length]; i++) { [stringBuffer addObject:[NSString stringWithFormat:@"%C", [string characterAtIndex:i]]]; } // doing stuff with the array return [stringBuffer componentsJoinedByString:@""]; }

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• Can I get a dump of all my databases *except one* using mysqldump?

  - by Daniel Magliola

  I'm currently using mySQLdump to backup my dev machine and servers. There is one project I just started, however, that has a HUUUUUGE database that I don't really need backed up, and i'll be a big problem to add it to the rest of the backup cycle. I'm currently doing this: "c:\Program Files\mysql\MySQL Server 5.1\bin\mysqldump" -u root -pxxxxxx --all-databases g:\backups\MySQL\mysqlbackup.sql Is it possible to somehow specify "except this database(s)"? I wouldn't like to have to specify the list of DBs manually, since that would mean that I'd have to remember updating my backup batch file every time I create a new DB, and I know that's not gonna happen. EDIT: As you probably guessed from my command line above, i'm doing this on Windows, so I can't do any kind of fancy bash stuff, only wimpy .bat things. Alternatively, if you have other ideas to solve this same issue, they are more than welcome, of course! Thanks Daniel

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• Can I partition the C# System.Threading.ThreadPool?

  - by Drew Shafer

  I love ThreadPool. It makes my life better. However, my love may have quietly turned into an abusive relationship that I need to escape from, so I need some advice from my SO brothers (and presumably sisters, although I haven't seen any actual evidence of that yet). My basic problem is that I have several different libraries that are all using the threadpool in an uncoordinated way, and running out of threads is a possibility. I was hoping there was some way I could partition the ThreadPool up so I could give a certain class 1 thread, another 20 threads, another 5 threads, and so on. I know I could write my own ThreadPool implementation. I don't want to do that, because I'm lazy. So, is there a simple solution already out there? Currently I'm constrained to using the 3.5 CLR. I know a lot of this stuff becomes easier in 4.0.

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• (External) Java library for creating Tree structure ?

  - by suVasH.....

  I am planning to implement a tree structure where every node has two children and a parent along with various other node properties (and I'd want to do this in Java ) Now, the way to it probably is to create the node such that it links to other nodes ( linked list trick ), but I was wondering if there is any good external library to handle all this low level stuff. ( for eg. the ease of stl::vector vs array in C++ ). I've heard of JDots, but still since i haven't started (and haven't programmed a lot in Java), I'd rather hear out before I begin.

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• Dotnetopenauth oAuth Service provider explanation

  - by ria

  I am a total newbie in the oAuth area and have set up DotNetOpenAuth to set up an oAuth Service provider. The sample provided in the DotNetOpenAuth download is quite confusing for me...maybe cos i am new to this stuff. There is one default page that creates a database and populates the database. Now I browse to the login.aspx and it asks me to put an openid, actually I want to use DNN (which implements DotNetOpenAuth) and i want to use those credentials on another site which will be the oAuth consumer. Can someone explain how to test the oAuth Service provider in the samples of DotNetOpenAuth?

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• How to continuously fade a BitmapData to a certain color?

  - by Cay

  I'm drawing stuff on a bitmapData and I need to continuously fade every pixel to 0x808080 while still drawing (its for a DisplacementMapFilter)... I think this illustrates my problem: http://www.ventdaval.com/lab/grey.swf The simpler approach I tried was drawing a semi-transparent grey box on it, but it never reaches a single color (i.e. 0x808081 will never be turned to 0x808080)... The same kind of thing happens with a ColorMatrixFilter trying to progressively reduce the saturation and/or contrast. (the example above is applying a filter with -10 contrast every frame). I'm trying paletteMap now, and I'm sensing this could be the way to go, but I haven't been able to get it... any ideas?

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