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  • How To Test if Type is Primitive

    - by DaveDev
    Hi Guys I have a block of code that serializes a type into a Html tag. Type t = typeof(T); // I pass <T> in as a paramter, where myObj is of type T tagBuilder.Attributes.Add("class", t.Name); foreach (PropertyInfo prop in t.GetProperties()) { object propValue = prop.GetValue(myObj, null); string stringValue = propValue != null ? propValue.ToString() : String.Empty; tagBuilder.Attributes.Add(prop.Name, stringValue); } This works great, except I want it to only do this for primitive types, like string, int, double, bool etc. I want it to ignore everything else. Can anyone suggest how I do this? Or do I need to specify the types I want to allow somewhere and switch on the property's type to see if it's allowed? That's a little messy, so it'd be nice if I there was a tidier way.

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  • Tracking object entries when "playing" a Windows Enhanced Metafile

    - by lzcd
    One of my current projects requires that I work out what colours are being used in an EMF file. I have been able to successfully whip up a file parser in C# that notes all references to colours... but haven't had any luck tracking which objects are in use across the entire file so I can apart colours that are referenced from colours that are used to paint on screen. The older style WMF files are easy as the object library starts at zero and one can simply track each "Create Object" style command... but EMF files are proving to be trickier as there seems to be preexisting entries in the library (if the "Select Object" commands I'm seeing are to be believed). Would anyone be able to either enlighten me on how to track objects in the library correctly with EMF files... or suggest an easier alternative to work out which colours are actually being used in the file (as opposed to just being defined)?

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  • How to validate HTTP request headers before receiving request body using WCF

    - by anelson
    I'm implementing a REST service using WCF which will be used to upload very large files. The HTTP headers in this request will communicate information which will be validated prior to allowing the upload to proceed (things like permissions, available disk space, etc). It's possible this validation will fail resulting in an error response. I'd like to do this validation prior to the client sending the body of the request, so it has a chance to detect failure before uploading potentially gigabytes of data. RESTful web services use the HTTP 1.1 Expect: 100-continue in the request to implement this. For example Amazon S3's REST API can validate your key and ACLs in response to an object PUT operation, returning 100 Continue if all is well, indicating you may proceed to send your data. I've rummaged around the WCF documentation and I just can't see a way to accomplish this without doing some pretty low-level hooking into the HTTP request processing pipeline. How would you suggest I solve this problem?

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  • Why does IE8 change flash callback function into object?

    - by Christian Hollbaum
    Hi Guys I have put 2 swf's (using swfobject 2) on the same website; One for playing a movie, and one for controlling the movie (I want to position them seperately, so they can't be in the same swf). I'm doing the communication between the two using javascript with jQuery, and externalcallback functions in both swf's. Everything is running smoothly on all browsers, but IE8. In IE8 I can only call the pause callback function in the control swf once. When it has been called it will not run properly the next time. After trying to debug what is happening live, using javascript's "type of" I have found that IE8 changes the callback function on the flash object from a function into an object when it has been triggered. Can anyone explain why this is happening? .. and maybe suggest how to avoid this? .. or change the object back to a function?

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  • Remove first 'n' elements from list without itterating

    - by Eldhose M Babu
    I need an efficient way of removing items from list. If some condition happens, I need to remove first 'n' elements from a list. Can some one suggest the best way to do this? Please keep in mind: performance is a factor for me, so I need a faster way than itterating. Thanks. I'm thinking of a way through which the 'n'th item can be made as the starting of the list so that the 0-n items will get garbage collected. Is it possible?

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  • Adding help button for each window

    - by Miraaj
    Hi all, I have found that user can associate help with his application using Help Viewer. Users typically launch Help Viewer by choosing the application help item from the Help menu, or by typing a query in the Spotlight For Help text field in the Help menu. I have some different requirement: I want to associate component specific help to my application, means that there will be a small '?' marked icon at bottom left corner of a window and when user clicks it, appropriate help page will open. This case is similar to 'print' panels where there is a small '?' icon. Can anyone suggest me some way to accomplish it, if it is possible? Thanks, Miraaj

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  • EE Major : Should I learn Ruby on Rails or Haskell?

    - by Vivek
    Hi,I've just completed my freshman year in college and am majoring in EE (with a lot of interest in CS as well) . I know some Python,C/C++ and Java and also a little bit of Actionscript . I am planning to learn either Haskell or Ruby on Rails. Haskell because it is a functional programming language, and I've been really impressed by this paradigm and Ruby on Rails , as I don't know any 'web' programming language and have heard that you can develop apps in RoR very easily and quickly . Which one should I learn ? and please suggest some links / books for starting off .

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  • FTP in NetBeans 6.1

    - by Ross
    Is there an FTP browser hiding away in NetBeans 6.1? The help manual doesn't even suggest FTP exists. All I've been able to find so far is a tree viewer in the Services panel (no edit controls) and the ability to upload projects, folders and specific files from the Projects/Files views. Is there anywhere to delete or rename or will I have to keep switching back to my browser? I can see from the previews that there's a nice FTP controller in 6.5 but I'm not desperate enough to completely convert to a beta (yet).

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  • Methods for content uniqueness calculation on C#

    - by sashaeve
    I have a set of text files. I want to calculate a content uniqueness for different subsets. E.g. we have 10 documents (A1 - A10) and want to calculate the uniqueness for subset of documents A1 and A2. So the result must be some value from 0 to 1 (1 - absolutely unique content, 0 - absolutely dublicated content). What methods for content uniqueness calculation do you know? Please suggest these methods with .NET implementations. Thanks.

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  • WPF USer Control viewmodel binding

    - by Senthilkumar
    HI Can any one suggest me how bind viewmodel to a usercontrol.. Also please share different way of doing that.. I have added viewmodel and view into my xaml file in namespace and in the user control resource tag.. i have defined a data template with data type as the viewmodel wh i have wrote.. inside that i have added my view (i mean the same usercontrol ih which im editing now is it possible -- please let me know).. I have used content control with content={Binding}.. and contenttemplate as a datatemplate.. in that i have reffered the property which i want to bind from viewmodel).. but its not binding as such.. My query is different ways of binding viewmodel to view in UserControlLibrary Project ?

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  • RaisePropertyChanged for Windows Phone

    - by chief7
    I'm starting to use the MVVMLight framework and have a question about binding to properties in the ViewModel. I found that I have to call the RaisePropertyChanged method in the setter for the property in order for the View to be updated. And I have to call RaisePropertyChanged from through the dispatcher otherwise I get a thread access error. public string Lat { get { return _lat; } set { _lat = value; Deployment.Current.Dispatcher.BeginInvoke(() => RaisePropertyChanged("Lat")); } } This works but its a lot of code to get auto binding properties. Is there a helper to handle this more cleanly?

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  • Hibernate: @UniqueConstraint with @ManyToOne field???

    - by Misha Koshelev
    Dear All: Using the following code: @Entity @Table(uniqueConstraints=[@UniqueConstraint(columnNames=["account","name"])]) class Friend { @Id @GeneratedValue(strategy=GenerationType.AUTO) public Long id @ManyToOne public Account account public String href public String name } I get the following error: org.hibernate.AnnotationException: Unable to create unique key constraint (account, name) on table Friend: account not found It seems this has to do with the @ManyToOne constraint, which I imagine actually creates a separate UniqueConstraint??? In any case, if I take this out, there is no complaint about the UniqueConstraint, but there is another error which makes me believe it must be left in. org.hibernate.MappingException: Could not determine type for: com.mksoft.fbautomate.domain.Account, at table: Friend, for columns: [org.hibernate.mapping.Column(account)] Any hints how I can create such a desired constraint (i.e., that each combination of account and name occurs only once???) Thank you! Misha

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  • Acquiring Table Lock in Database - Interview Question

    - by harigm
    One of my interview Questions, if multiple users across the world are accessing the application, in which it uses a Table which has a Primary Key as Auto Increment Field. The Question how can you prevent the other user getting the Same Primary key when the other user is executing? My answer was I will obtain the Lock on the table and I will make the user to wait Until that user is released with the Primary key. But the Question How do you acquire the Table lock programmatically and implement this? If there are 1000 users coming every minute to the application, if you explicity hold the lock on the table, then the application will become slower? How do you manage this? Please suggest the possible answers for the above question

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  • Lazy loading of child throwing session error

    - by Thomas Buckley
    I'm the following error when calling purchaseService.updatePurchase(purchase) inside my TagController: SEVERE: Servlet.service() for servlet [PurchaseAPIServer] in context with path [/PurchaseAPIServer] threw exception [Request processing failed; nested exception is org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.app.model.Purchase.tags, no session or session was closed] with root cause org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.app.model.Purchase.tags, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:383) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:375) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:368) at org.hibernate.collection.PersistentSet.add(PersistentSet.java:212) at com.app.model.Purchase.addTags(Purchase.java:207) at com.app.controller.TagController.createAll(TagController.java:79) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:212) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789) at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) TagController: @RequestMapping(value = "purchases/{purchaseId}/tags", method = RequestMethod.POST, params = "manyTags") @ResponseStatus(HttpStatus.CREATED) public void createAll(@PathVariable("purchaseId") final Long purchaseId, @RequestBody final Tag[] entities) { Purchase purchase = purchaseService.getById(purchaseId); Set<Tag> tags = new HashSet<Tag>(Arrays.asList(entities)); purchase.addTags(tags); purchaseService.updatePurchase(purchase); } Purchase: @Entity @XmlRootElement public class Purchase implements Serializable { /** * */ private static final long serialVersionUID = 6603477834338392140L; @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @OneToMany(mappedBy = "purchase", fetch = FetchType.LAZY, cascade={CascadeType.ALL}) private Set<Tag> tags; @JsonIgnore public Set<Tag> getTags() { if (tags == null) { tags = new LinkedHashSet<Tag>(); } return tags; } public void setTags(Set<Tag> tags) { this.tags = tags; } ... } Tag: @Entity @XmlRootElement public class Tag implements Serializable { /** * */ private static final long serialVersionUID = 5165922776051697002L; @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @ManyToOne(fetch = FetchType.LAZY) @JoinColumns({@JoinColumn(name = "PURCHASEID", referencedColumnName = "ID")}) private Purchase purchase; @JsonIgnore public Purchase getPurchase() { return purchase; } public void setPurchase(Purchase purchase) { this.purchase = purchase; } } PurchaseService: @Service public class PurchaseService implements IPurchaseService { @Autowired private IPurchaseDAO purchaseDAO; public PurchaseService() { } @Transactional public List<Purchase> getAll() { return purchaseDAO.findAll(); } @Transactional public Purchase getById(Long id) { return purchaseDAO.findOne(id); } @Transactional public void addPurchase(Purchase purchase) { purchaseDAO.save(purchase); } @Transactional public void updatePurchase(Purchase purchase) { purchaseDAO.update(purchase); } } TagService: @Service public class TagService implements ITagService { @Autowired private ITagDAO tagDAO; public TagService() { } @Transactional public List<Tag> getAll() { return tagDAO.findAll(); } @Transactional public Tag getById(Long id) { return tagDAO.findOne(id); } @Transactional public void addTag(Tag tag) { tagDAO.save(tag); } @Transactional public void updateTag(Tag tag) { tagDAO.update(tag); } } Any ideas on how I can fix this? (I want to avoid using EAGER loading). Do I need to setup some form of session management for transactions? Thanks

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  • How to create a css rule for all elements except one class?!

    - by Nick
    Hi, I have created a CSS stylesheet for my project. Is there any way I can create a css rule that applies to all table elements EXCEPT table elements belonging to the class "dojoxGrid"? Something like: .not(dojoxGrid) table{ width:100%; border-top:1px solid #dddddd; border-left:1px solid #dddddd; border-right:1px solid #dddddd; margin:1em auto; border-collapse:collapse; } Thanks in advance!

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  • batch update SharePoint data

    - by Faiz
    Hi, I need to import user profile information to a sharepoint list. Also, the user profile information will be periodically updated to the list , therefore i think i should use a timer job to update the information. Importing for the first time works without any issues. But can you suggest what can be the best way to update information. The update should take care of updating existing records in profile , mark as orphaned for the records that are deleted from user profile and add new records in user profile to the list. Thanks

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  • initializer_list and move semantics

    - by FredOverflow
    Am I allowed to move elements out of a std::initializer_list<T>? #include <initializer_list> #include <utility> template<typename T> void foo(std::initializer_list<T> list) { for (auto it = list.begin(); it != list.end(); ++it) { bar(std::move(*it)); // kosher? } } Since std::intializer_list<T> requires special compiler attention and does not have value semantics like normal containers of the C++ standard library, I'd rather be safe than sorry and ask.

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  • Resharper Split String literal

    - by Ismael
    I was not lucky in my 15 minutes googling. Maybe bad luck with good keyword? Why does the Resharper suggest spliting a string in function parameter? Example: From this: return PartialView("Categorias", lista); To this: return PartialView("Cat" + "egorias", lista); I checked documentation here: link And it says: Split string literal - Splits string literal into two literals. I want to discover why is this a good practice, what are the fundamental idealogic behind the scenes that achieved this practice. I don't want to do it without knowing why... Help is soooo appreciated.

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  • ASP.NET MVC: Accessing ModelMetadata for items in a collection

    - by DanM
    I'm trying to write an auto-scaffolder for Index views. I'd like to be able to pass in a collection of models or view-models (e.g., IEnumerable<MyViewModel>) and get back an HTML table that uses the DisplayName attribute for the headings (th elements) and Html.Display(propertyName) for the cells (td elements). Each row should correspond to one item in the collection. When I'm only displaying a single record, as in a Details view, I use ViewData.ModelMetadata.Properties to obtain the list of properties for a given model. But what happens when the model I pass to the view is a collection of model or view-model objects and not a model or view-model itself? How do I obtain the ModelMetadata for a particular item in a collection?

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  • Son of Suckerfish ie6 problem - right-most dropdown menu also appearing on left side of screen

    - by Kevin Burke
    I'm interning for an NGO in India and trying to fix their website, including updating their menu so it's not the last item on the page to load, and it's centered on the screen. Everything works well enough but when I try out my new menu in IE6, I get this weird error where the content below the menu is padded an extra 30px or so and the material in the right-most drop down appears on the far left of the screen, always visible. When I drop down the rightmost link ("Publications") the content appears both in the correct location and in the same spot on the far left of the screen, and changes color when I hover as well. It's tough to describe, so it would probably be best if you took a look: visit http://sevamandir.org/a30/index.htm in your Internet Explorer 6 browser to see for yourself. I really appreciate your help. Also I'm using a 1000px wide monitor, if there's more hijinks going on outside that space I'd like to know about that too. Here's the relevant code: in the html head: <script> sfHover = function() { var sfEls = document.getElementById("nav").getElementsByTagName("LI"); for (var i=0; i<sfEls.length; i++) { sfEls[i].onmouseover=function() { this.className+=" sfhover"; } sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(" sfhover\\b"), ""); } } } if (window.attachEvent) window.attachEvent("onload", sfHover); </script> text surrounding the menu - the menu is simply <ul id="nav"><li></li></ul> etc. <!--begin catchphrase--> <div style="float:left; height:27px; width:520px; margin:0px; font:16px Arial, Helvetica, sans-serif; font-weight:bold; color:#769841;"> Transforming lives through democratic &amp; participatory development </div> <?php include("menu.php"); ?> </div><!-- end header --> <!--begin main text div--> <div id="maincontent"> Relevant menu CSS: #nav, #nav ul { font:bold 11px Verdana, sans-serif; float: left; width: 980px; list-style: none; line-height: 1; background: white; font-weight: bold; padding: 0; border: solid #769841; border-width: 0; margin: 0 0 1em 0; } #nav a { display: block; width: 140px; /*this is the total width of the upper menu*/ w\idth: 120px; /*this is the width less horizontal padding */ padding: 5px 10px 5px 10px; /*horiz padding is the 2nd & 4th items here - goes Top Right Bottom Left */ color: #ffffff; background:#b6791e; text-decoration: none; } #nav a.daddy { background: url(rightarrow2.gif) center right no-repeat; } #nav li { float: left; padding: 0; width: 140px; /*this needs to be updated to match top #nav a */ background:#b6791e; } #nav li:hover, #nav li a:hover, #nav li:hover a { background:#769841; } #nav li:hover li a { background:#ffffff; color:#769841; } #nav li ul { position: absolute; left: -999em; height: auto; width: 14.4em; w\idth: 13.9em; font-weight: bold; border-width: 0.25em; /*green border around dropdown menu*/ margin: 0; } #nav li ul a { background:#ffffff; color:#769841; } #nav li li { padding-right: 1em; width: 13em; background:#ffffff; } #nav li ul a { width: 13em; w\idth: 9em; } #nav li ul ul { margin: -1.75em 0 0 14em; } #nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfhover ul ul, #nav li.sfhover ul ul ul { left: -999em; } #nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfhover ul, #nav li li.sfhover ul, #nav li li li.sfhover ul { left: auto; } #nav li:hover, #nav li.sfhover, { background: #769841; color:#ffe400; } #nav li a:hover, #nav li li a:hover, #nav li:hover li:hover, #nav li.sfhover a:hover { background: #769841; color:#ffe400; }

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  • Why does Chrome incorrectly determine page is in a different language and offer to translate?

    - by Sam
    The new Google Chrome auto-translation feature is tripping up on one page within one of our applications. Whenever we navigate to this particular page, Chrome tells us the page is in Danish and offers to translate. The page is in English, just like every other page in our app. This particular page is an internal testing page that has a few dozen form fields with English labels. I have no idea why Chrome thinks this page is Danish. Does anyone have insights into how this language detection feature works and how I can determine what is causing Chrome to think the page is in Danish?

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  • InnoDB "Column count doesn't match value count at row 1"

    - by Webnet
    I'm having issues with a table. I'm using the following to create my insert query... $validatedData = array(); foreach ($post as $key => $value) { if ($key != 'submit' && $key != 'dz_tos' && $key != 'dz_billShip') { $validatedData[$key] = filter_var($value, FILTER_SANITIZE_STRING); } } mysql_query("INSERT INTO dz_users(".implode(array_keys($validatedData), ',').", dz_access_level) VALUES(\"".implode($validatedData, '\",\"')."\", 1)"); So every column has a value to match it. The problem is that I'm getting the SQL error: Column count doesn’t match value count at row 1 The database is an innoDB and all columns are varChar/Char except for the ID field which is an auto increment primary key.

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  • difficulty based time estimation software

    - by Frankie
    Some months ago I found a project-management / time-estimation software that would ask you to sort out your tasks in terms of difficulty (1, 2 or 3) and would then estimate the time you would take to deploy. The system would auto-adapt as you were working. I've forgot the software name. For the past days I've been digging emails and searching Google with no results. Can anyone pin the software name by my description? Its not http://www.fogcreek.com (though I've found it to be a great piece of software. Thank you in advance.

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  • Autowiring collections with IoC

    - by Marcus
    Hi, Anyone know if there exists any IoC container that can handle this: Given: ISomeInterfce<T> where T : Entity Impl1 : ISomeInterfce<Entity1> Impl2 : ISomeInterfce<Entity1> Impl3 : ISomeInterfce<Entity2> Impl4 : ISomeInterfce<Entity2> I want to be able to auto wire my system and be able to resolve like this IoC.ResolveAll(typeof(ISomeInterfce<Entity1>)) and get a collection back of all implementations of ISomeInterfce<Entity1>

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  • ShareThis causing "Transfering Data From" in Firefox status bar

    - by JackIT
    There is a conflict with the ShareThis script and another script I have on my site. I've set up a test example here: http://jbrlsr.com/help.html to reproduce the issue, use FireFox and mouseover a few of the links, you'll notice "Transferring Data From" in the status bar area. To clear that message click on the ShareThis icon. There is one post I've found on the ShareThis Forums: forums.sharethis.com/topic.php?id=2415#post-4199 but no resolution. If you can pinpoint the issue and suggest a realistic/workable resolution I will PayPal you $100.

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