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• Opening IProject properties when another (adaptable to IProject) object is selected

  - by Stan

  I have a custom view displaying a hierarchy model of the current project. The root element is of class MyProject which is my own class, but it represents one Eclipse IProject, and it's adaptable to IProject. I have a "properties" menu option in the popup menu for that view, and I'd like to open up IProject's properties when a MyProject object is selected. PropertyDialogAction only looks for property pages registered for MyProject and doesn't give me a chance to offer an adapter -- or, at least, I don't know how to offer one. What's the proper solution for this? In the meantime, I've overridden PropertyDialogAction to handle my class in the special way I require, but that seems like quite a kludge to get this done.

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• Cannot load PNG in C# on Mac OSX running Mono

  - by milkplus

  In C#, I'm trying to load a png file on Mac OSX using the latest Mono using System.Drawing; Bitmap bmp = new Bitmap("test.png"); I get the following error Either the image format is unknown or you don't have the required libraries to decode this format [GDI+ status: UnknownImageFormat] It doesn't happen with all png files; just this one. Resaving in photo shop doesn't fix it unless I switch to 8bpp. Is there something I need to install to support this "special" png file? Works fine on windows.

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• In a client-server relationship, should the server always rethrow the exception to the client?

  - by dotnetdev

  I have a set of web services (the server), and an app which consumes this (client). In this sort of relationship, should the server always throw exceptions (ie in the throw block, rethrow the caught exception), and the client catch this. Exceptions which the server can handle, it will deal with and not rethrow, but everything else will be thrown to the calling layer for further action (the consuming app can raise a msg box or whatever). Is this a good example of an exception that can be dealt with: A file cannot be written because the directory requires special privileges, so if this raises an exception, the file is written somewhere which does not require admin rights. Thanks

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• Invisible Delimiter for Strings in HTML

  - by noah

  I need a way to identify certain strings in HTML markup. I know what the strings are, but it is possible that they could be substrings of other strings in the document. To find them, I output a special delimiter character (currently using \032). On page load, we go through the HTML and record the location of the strings, and remove the delimiter. Unfortunately, most browsers show the delimiter character until we can find and remove them all. I'd like to avoid that if possible. Is there a character or string that will be preserved in the HTML content (so a comment wont work) but wont be visible to the user? It also needs to be something that is fairly unlikely to appear next to a string, so something like &nbsp; wouldn't work either. EDIT: Sorry, I forgot to mention that the strings will be in attributes, so any sort of tag wont work.

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• String Functions in IIS Url Rewritting Module

  - by Nariman

  The IIS URL Rewrite Module ships with 3 built-in functions: * ToLower - returns the input string converted to lower case. * UrlEncode - returns the input string converted to URL-encoded format. This function can be used if the substitution URL in rewrite rule contains special characters (for example non-ASCII or URI-unsafe characters). * UrlDecode - decodes the URL-encoded input string. This function can be used to decode a condition input before matching it against a pattern. The functions can be invoked by using the following syntax: {function_name:any_string} The question is: can this list be extended by introducing a Replace function that's available for changing values within a rewrite rule action or condition?

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• Visual Studio 2008, MSBuild: "replacement" projects

  - by liori

  Hello, My solution has a library project which needs a special environment to be built (lots of external libraries and tools)... but it is not vital to our application. We'd like to avoid installing these tools when not necessary (most of our developers work on other parts of code). We have created another project which has the same API, but has an empty implementation and is compilable without those external tools. I'd like to be able to easily switch between those projects and still get all the references in other projects correct. I don't know VS/MSBuild very well, but willing to learn whatever is necessary. Is it possible? I am looking for ideas... We're using Subversion, and solutions involving some hacks inside VCS are also welcome.

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• How does Windows' 'Open with' work?

  - by Frederick

  I was under the impression that when you double click a file (or choose 'Open With' from the right click menu), Windows simply calls the application with the filename as the parameter. Something like this: C: App.exe file.abc However, I just double clicked an .xls file and then checked the PEB of the Excel instance that sprang up. To my surprise the commandline did not contain the filename as a parameter. So that set me wondering. What exactly is mechanism Windows uses to have a file opened by a relevant application? Is there a special API that each application that supports such facility must expose?

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• global security manager in flex

  - by ron

  hi, I made a swf that interacts with other site on the internet (which has a crossdomainfile for me). in the main.mxml there is a definition of webservice (mx:WebService)(which is not in my domain). Therefore when loading the swf, there is a first call to crossdomainfile.xml. I put this swf on my server so that my clients can get it. When i connect to my server to download the swf, i expect to be asked if i want to allow the swf connect to foreign webservice domain. But i am not being asked. Do i always need to define exception in Global Security Settings panel? I don't want my client do define special things.. Is there a best practice for that? Why when i surfing the net other swf can do this? I read about the FlashPlayerTrust, can i define there a website i trust my swf will connect to? anyone knows?

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• TYPO3: How do i render tt_content text elements in my own extensions?

  - by arturh

  I'm currently writing a TYPO3 extension which is configured with a list of tt_content UID's. These point to content elements of type "text" and i want to render them by my extension. Because of TYPO3s special way of transforming the text you enter in the rich text editing when it enters the database, and again transforming it when it is rendered to the frontend, i can not just output the database contents of the "bodytext" field. I want to render these texts as they would usually get rendered by TYPO3. How do I do that?

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• What is a good way of checking to see if a particular user may access a particular file?

  - by Rising Star

  I am working on application which runs as a special unprivileged user. I would like to be able to easily check to see if the user can read a given file. It seems like this should be easy, even when I go into the file in Windows Explorer and see that the read permission is checked, it sometimes seems that there is still something preventing the user from reading the file (such as a parent directory that the user cannot browse) when I try to read it as the user programmatically. The user has no console logon permission, so I can't just log in as the user and try to read the file. So... If I want to know, "Does UserBob have access to file c:\specialPath\specialFile, what is an easy way to find out? BTW, my environment is Windows Server 2003.

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• What is the 'noreq' Filter Type an Alias for?

  - by Alan Storm

  I'm looking in to Magento's filtering options (Ecommerce System and PHP Framekwork with an expansive ORM system). Specifically the addFieldToFilter method. In this method, you specify a SQLish filter by passing in a single element array, with the key indicating the type of filter. For example, array('eq'=>'bar') //eq means equal array('neq'=>'bar') //neq means not equal would each give you a where clause that looks like where field = 'bar'; where field != 'bar'; So, deep in the bowels of the source, I found a comparison type named 'moreq' that maps to a = comparison operator array('moreq'=>'27') where field >= 27 The weird thing is, there's already a 'gteq' comparision type array('gteq'=>'27') where field >= 27 So, my question is, what does moreq stand for? Is is some special SQL concept that's supported in other databases that the Magento guys wants to map to MySQL, or is it just "more required" and an example what happens when you're doing rapid agile and trying to maintain backwards compatibility.

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• Kentico - Using punctuation with AuthenticateUser

  - by Big Friendly Giant

  We are currently using version 7.0 of the kentico API to authenticate users into our system. The following code is used to gain user details from the database and authenticate users. UserInfo objUserInfo = AuthenticationHelper.AuthenticateUser(username.ToLower(), password.ToLower(), CMSContext.CurrentSiteName); This has primarily been working correctly, but we are having issues with usernames and passwords that contain any of the following characters. " ! @ ' / \ < * - Is there any settings that I need to be aware of (web.config or otherwise) that would stop the API from accessing an account where a username or password contained special characters?

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• Can I Use ASP.NET Wizard Control to Insert Data into Multiple Tables?

  - by SidC

  Hello All, I have an ASP.NET 3.5 webforms project written in VB that involves a multi-table SQL Server insert. That is, I want the customer to input all their contact information, order details etc. into one control (thinking wizard control). Then, I want to call a stored procedure that does the insert into the respective database tables. I'm familiar and comfortable with the ASP.NET wizard control. However, all the examples I've seen in my searches pertain to inserting data into one table. Questions: 1. Given a typical order process - customer information, order information, order details - should a wizard control be used to insert data into multiple database tables? If not, what controls/workflow do you suggest? 2. I've set primary keys and indexes on my order details, orders and customers tables. Is there special stored procedure syntax to use to ensure that referential integrity is maintained through the insert process? Thanks, Sid

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• Can learning a new language (Human not programming) help your career?

  - by Omar Kooheji

  I was wondering if anyone had any experience of learning a new language (a human language not a programming one) and whether is has helped you get ahead in your career. I'm assuming that the new language is one other than English which I think is fairly essential to programming as most programming resources seem to be english. The reason I ask is I speak Arabic and was told that it would give me an edge when I was looking for jobs, and yet so far in my current job it's completely irrelevant and in my last job I had it was used but I didn't get any special "appreciation" for speaking it.

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• doc file created in iPhone documents encoding issue

  - by Saurabh Verma

  I'm trying to write a MSword file in document directory by the following code: NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); NSString* path; NSString* gradeDoc = [self fetchCommentsDesc]; NSString* str = [self.objStudent.strName stringByAppendingFormat:@".doc"]; path = [[paths objectAtIndex:0] stringByAppendingPathComponent:str]; [gradeDoc writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:nil]; [self fetchCommentsDesc] returns NSString. self.student.strName is a String Issue: When i Open the doc file created in document directory of iphone, all the special characters in the doc appears as boxes or some arabic chars. Please help!

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• Possible to bind an event listener to a (hypothetical) onChangeInnerHTML event?

  - by DustMason

  In my app, I have an OL tag whose contents are changed by various other dynamic events. Is there some way to put a listener on that OL so that I can execute a function whenever its contents are altered in any way? In this example I need to update a count of items in the list which appears in another spot in the interface. I am using jQuery if that helps. The contents of the OL are being changed with OL.append() and LI.remove(), in case those methods have some special events that I don't know about Thanks!

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• What is Perl's secret of getting small code do so much?

  - by sak

  I've seen many (code-golf) Perl programs out there and even if I can't read them (Don't know Perl) I wonder how you can manage to get such a small bit of code to do what would take 20 lines in some other programming language. What is the secret of Perl? Is there a special syntax that allows you to do complex tasks in few keystrokes? Is it the mix of regular expressions? I'd like to learn how to write powerful and yet short programs like the ones you know from the code-golf challenges here. What would be the best place to start out? I don't want to learn "clean" Perl - I want to write scripts even I don't understand anymore after a week. If there are other programming languages out there with which I can write even shorter code, please tell me.

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• Call function from hyperlink defined in qTip content

  - by user327066

  Hi, I am trying to call a javascript function from a hyperlink that is part of the content in a qTip. I keep getting the error my function is not defined but it is defined within the page and can be called outside of qTip. Below is what I have so far: function addTooltip() { $("#mycontent").qtip({ content: 'mylink' }); } function tester() { alert("hello world"); } If I put the alert within the onClick attribute, I at least get the alert to work. Is there some special way of calling a function from within qTip? Any help is appreciated. Thanks.

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• Are protected constructors considered good practice?

  - by Álvaro G. Vicario

  I'm writing some little helper classes to handle trees. Basically, I have a node and a special root node that represents the tree. I want to keep it generic and simple. This is part of the code: <?php class Tree extends TreeNode{ public function addById($node_id, $parent_id, $generic_content){ if( $parent = $this->findNodeById($parent_id) ){ $parent->addChildById($node_id, $generic_content); } } } class TreeNode{ public function __construct($node_id, $parent_id, $generic_content){ // ... } protected function addChildById($node_id, $generic_content){ $this->children[] = new TreeNode($this->node_id, $node_id, $generic_content); } } $Categories = new Tree; $Categories->addById(1, NULL, $foo); $Categories->addById(2, NULL, $bar); $Categories->addById(3, 1, $gee); ?> My questions: Is it sensible to force TreeNode instances to be created through TreeNode::addById()? If it's so, would it be good practise to declare TreeNode::__construct() as private/protected?

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• What is '=>'? (C# Grammar Question)

  - by Daniel

  I was watching a Silverlight tutorial video, and I came across an unfamiliar expression in the example code. what is = ? what is its name? could you please provide me a link? I couldn't search for it because they are special characters. code: var ctx = new EventManagerDomainContext(); ctx.Events.Add(newEvent); ctx.SubmitChanges((op) => { if (!op.HasError) { NavigateToEditEvent(newEvent.EventID); } }, null);

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• What is so great about STL?

  - by Zygrob

  Hello StackOverflow. I am a Java developer trying to learn C++. I have many times read over the web (including StackOverflow) that STL is the best collections library that you can get in *any* language. (Sorry, I do not have any citations atm) However after studying some STL, I am really failing to see what makes STL so special. Would you please shed some light on what sets STL apart from the collection libraries of other languages and make it the _best_ collection library? Thanks in advance, Zygr??b.

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• Wrong code coverage on of unit test

  - by KamilPyc

  I'm using code coverage for unit tests in Xcode. Everything is working except some special cases, for example protocol declaration shows wrong values. If I have : @protocol SomeProtocole <NSObject> @property (nonatomic, readonly) NSObject *example; @end I will get 0% code coverage for this file. But I have unit test that is using class that conforms to that protocol. Only solution I found so far is to filter code coverage raport to not include protocols. But I would like to see real values for protocols. Any one have some solution to fix it?

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• How to prevent filename expansion in for loop in bash

  - by cagri

  In a for loop like this, for i in `cat *.input`; do echo "$i" done if one of the input file contains entries like *a, it will, and give the filenames ending in 'a'. Is there a simple way of preventing this filename expansion? Because of use of multiple files, globbing (set -o noglob) is not a good option. I should also be able to filter the output of cat to escape special characters, but for i in `cat *.input | sed 's/*/\\*'` ... still causes *a to expand, while for i in `cat *.input | sed 's/*/\\\\*'` ... gives me \*a (including backslash). [ I guess this is a different question though ]

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• Problem with Wicket and SignInExample in IE8

  - by KJQ

  I have an interesting problem with Wicket. I'm basically duplicating the 'authentication' example from the v1.4.x in SVN. It works fine in FireFox and Chrome but not in IE8. When in IE8, after I click the submit button it returns with a 404 error but i can manually paste the "destination" url in and it goes there fine (as an authenticated user). Another scenario is, I try to login, it gives me a 404, I hit refresh (looking at the html source I see the page version incremented), relogin and it works fine. So to summarize: I login the first time in IE8 and it returns a 404 error, hit refresh and ogin again and it works fine. I login the first time in IE8 and it returns a 404 error, manually paste the destination url in the browser and it goes there fine as if im logged in. I've compared everything between IE8 and FireFox from the rendered source and the code is not doing anything special but I cannot figure out what the differences are? Thanks. KJQ

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• Why does this regular expression for sed break inside Makefile?

  - by jcrocholl

  I'm using GNU Make 3.81, and I have the following rule in my Makefile: jslint : java org.mozilla.javascript.tools.shell.Main jslint.js mango.js \ | sed 's/Lint at line \([0-9]\+\) character \([0-9]\+\)/mango.js:\1:\2/' This works fine if I enter it directly on the command line, but the regular expression does not match if I run it with "make jslint". However, it works if I replace \+ with \{1,\} in the Makefile: jslint : java org.mozilla.javascript.tools.shell.Main jslint.js mango.js \ | sed 's/Lint at line \([0-9]\{1,\}\) character \([0-9]\{1,\}\)/mango.js:\1:\2/' Is there some special meaning to \+ in Makefiles, or is this a bug?

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