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• Why is this NaN to javascript?

  - by MJB

  I have this object printed with console.log Array[1] 0: Object address: "blablabalbala" datatype: "Location" icon: "cafetaria" id: "/mensa/wo_mensa1_turm.std.php" kind: "Mensa" lat: 50.777016 lon: 6.080348 sortkey: "zeltmensa, forum cafete" stationId: "/mensa/wo_mensa1_turm.std.php" title: "Zeltmensa, Forum Cafete" type: "Mensa" But console.log("nav to: "+data[0].lat+" "+data[0].lon); gives me undefined undefined, and at another point NaN NaN.. I don't understand this. It also doesn't let me use any other attributes like data[0].addresse, which returns undefined aswell. Thanks for help.

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• Removing exception

  - by Nikhil K

  I have used this code for extracting urls from web page.But in the line of 'foreach' it is showing Object reference not set to an instance of an object exception. What is the problem? how can i correct that? WebClient client = new WebClient(); string url = "http://www.google.co.in/search?hl=en&q=java&start=10&sa=N"; string source = client.DownloadString(url); HtmlDocument doc = new HtmlDocument(); doc.LoadHtml(source); foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href and @rel='nofollow']")) { Console.WriteLine(link.Attributes["href"].Value); }

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• Determining whether a class implements a generic list in a T4 template

  - by James Hollingworth

  I'm writing a T4 template which loads some classes from an assembly, does some analysis of the classes and then generates some code. One particular bit of analysis I need to do is to determine whether the class implements a generic list. I can do this pretty simply in C#, e.g. public class Foo : List<string> { } var t = typeof(Foo); if (t.BaseType != null && t.BaseType.IsGenericType && t.BaseType.GetGenericTypeDefinition() == typeof(List<>))) Console.WriteLine("Win"); However T4 templates use the FXCop introspection engine and so you do not have access to the .net reflection API. I've spent the past couple of hours in Reflector but still can't figure it out. Does anyone have any clues about how to do this?

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• file names based on file content

  - by Mark

  So iow, some algorithm to generate a unique, reasonable length filename based on binary file content. Two files that have the same binary content should have the same name. Obviously there would be limits to this, as presumably you couldn't have unique reasonable length filenames for each of a large set of large files only differing at a handful of bit positions. But presumably there is some heuristic, best approximation to this that for example exploits known attributes of typical image files. If I had the name of some algorithm that does this I can google it and find other approaches as well.

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• update dialog title for each click

  - by Scarface

  Hey guys I have a quick question, I have a dialog box that has multiple links with different attributes. Each time a link is clicked, the attribute src is printed inside of the dialog box so that each link has a unique output in the dialog. My problem is simply that only the first src title is in every box and I would like to change that as well with each click. I separated the line containing title to show the problem. If anyone has any ideas I would appreciate it. <a class="open" src="something" title="Click to play">link</a> <a class="open" src="something else" title="Click to play">link2</a> $('.open').click(function() { src=$(this).attr('src'); $('#show').html(''+src+''); $(\"#show\").dialog({hide: 'clip', width: 400,height: 150,position: 'center', show: 'clip',stack: true,title: ''+src+'', minHeight: 25, minWidth: 100, autoOpen: false,resizable:false}); $('#show').dialog('open'); })

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• Difference between the Document classes

  - by takoi

  I've been reading the javadocs trying to grasp around the swing Document API but I cant get something sensible out of it because there's so many classes: Document, StyledDocument, AbstractDocument, DefaultStyledDocument, PlainDocument, HTMLDocument, and someone mentioned DocumentFilter. This question is more on a general basis so can someone give an overview of the differences between the implementations and when the different interfaces and abstracts are for? For my specific case what I want to achieve is a data structure that will: hold three lines of text only. And attributes must not be per line or document. I will have a couple of thousand of these in some other structure so overhead is important. Anything that i can use for this or is it better to extend something? If so, what?

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• How to make dll referenced by ActiveX component accessible?

  - by sherpa

  I have an ActiveX component developed in C#. I'm referencing a dll which comes with other native dlls and it is loading them on the fly expecting them to be in the same folder (probably using Assembly.GetExecutingAssembly().Location but not sure, I don't have control over them). There is also one ini file which is also expected to be in the same folder. When I run the application as Windows form app, everything is fine, of course. But the trouble comes when I run it within Internet Explorer as the base directory is at the location of iexplore.exe. Obviously neither the dlls or the ini file can be found and many temporary working files outputted by the dlls are located in Internet Explorer folder. The workaround is to copy all ddls and ini file into the ie folder but that is not something I'd be happy about. What is the proper solution to this? Can I somehow set the base path for the ActiveX component?

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• SQL Server PIVOT on key-value table

  - by Zenox

  I have a table that has attributes based on a key-value. Example: CREATE TABLE ObjectAttributes ( int objectId, key nvarchar(64), value nvarchar(512) ) When I select from this I get: objectId key value ---------------------------- 1 Key 1 Value 1 1 Key 2 Value 2 I was wondering if I could use the PIVOT syntax to turn this into: objectId Key 1 Key 2 --------------------------- 1 Value 1 Value 2 I know all of my tables will have the same keys. (Unfortunately I cannot easily change the table structure. This is what is leading me to attempt using PIVOTS). The big issue here though is that pivots require an aggression function to be used. Is there a way to avert this? Am I completely wrong attempting this? Or is there a better solution?

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• HTML anchor #bottom, only going half-way down page

  - by RewbieNewbie

  http://www.planet-tolkien.com/board/44/621/0/poll-suggestions It's due to the multiple "bottom of the page" anchor links on each post to the anchor name at the bottom of the page. I tried to solve this by using a unique id and name for the attributes: <a href="#bottom" id="4656" name="4656"> But this hasn't worked. Suggestions? P.S. Don't use the URL bar, yes that works. Visit the page and click on a link in a post that says "Bottom of the page". This is where it isn't working.

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• Dispatching generic tasks in WCF or .Net Remoting

  - by Eric

  Hello all, I've been researching for a couple days on and off, and have yet to figure out the best way to achieve the following goal. I would like to define either an interface or abstract class in C# which has an associated Run method, similar to the Java runnable interface. The goal would be to have a shared queue which contains a list of these objects. Then individual clients would be able to derive their own concrete runnable classes and add them to the queue hosted by the server. Clients would also be able to pop these runnable objects off the queue and execute them arbitrarily. This seems like it should be feasible in a VM based language without needing to place any of the concrete implementations in a shared assembly, but I have thus far had no luck finding a working example of such a system. Does anyone know how this might be achieved?

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• MEF Why is ComposePart an extension method?

  - by ILovePaperTowels

  CompositionContainer.ComposePart is an extension method. why is that? Looking into the System.Componentmodel.Composition assembly, it looks like it's because it is ONLY meant to work with the attributed programming model while the .Compose() method is able to take in exports as long as it is a composablepart. ComposePart is even hosted in the 'AttributedModelServices' class which makes me think I'm correct. Am I correct on this? If not, why is it an extension method and not a method in the container class?

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• Multiple row insertion in a faster way

  - by Cyborgo

  Hi, I am using rails and I am trying to insert new rows into the table. The data comes from a text file and I created hash with one of the attribute as key. Then I find all the keys that are currently not in the table. Then I need to insert all of them into the table with all the attributes that I saved in hash. newvals.each{ |x| author = Author.create(:first => x, :second => hash[x][0], :third => hash[x][1]) author.save } This has lot of overhead as it makes an SQL update one at time. The newals array is usually quite big around the size of 20-30k. I know create can insert multiple objects at once, but I cant seem to figure out how. Is there any way to get this done. Thanks.

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• How to force calling of QWidget::paintEvent() when its hovered by other window?

  - by Pie_Jesu

  Hi there. I have occured a problem: I'm writing a widget, which displays current date's day number. It's like a button, but it's not derived from QPushButton class. Just from QWidget. So I reimplemented enterEvent(), leaveEvent(), mousePressEvent(), mouseReleaseEvent(). I call update() inside these methods and widget has realistic button behavior (paintEvent() is reimplemented too). But when I change system date and hover that widget with other window, my widget doesn't calls paintEvent() and displays old date. Only when I place mouse over it, widget repaints it's contents. I guess there is an option, which paints old contents on hover event to avoid unnecessary paint events. But I need to disable it. Tried to set many attributes (Qt::WidgetAttribute enum). But it doesn't helps. Please, help me (and sorry for my bad english).

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• Guidance on using drop in DLLs

  - by Scott Chamberlain

  I have been giving the task to rewrite a internal utility in .net for my work. One of program requirements the new system has is have a dll that implements a set of interfaces and have the program call the DLL. Now this dll will be changed out a lot per deployment. My question is what is the best way to do it from a development standpoint? Do I add a template DLL (one that only has the interfaces but no implementation) to the project references like I would do any other dll that I would use. Or do I need to use somthing like this every time I want to use code from the dll? var DropIn = System.Reflection.Assembly.LoadFrom("DropInDll.dll"); var getActions = DropIn.GetType("Main").GetMethod("GetActions"); List<IAction> ActionList = (List<IAction>)getActions.Invoke(null, null);

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• Building a jar to be used in an eclipse PDE?

  - by tul

  I have written an application that use a third party library. I have then packaged this as an executable jar using the maven-assembly-plugin (producing a jar with all dependencies including some of the third-party jars). Next I need to add this jar to a PDE project so it can be launched from eclipse. But to make this work I need to add some of the thirs-party dependencies to my PDE project which is already located in the packaged jar. So I get duplicated dependencies. Any ideas on how to avoid this? Or suggestion to documentation that describes how this is done properly?

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• Ruby on Rails - can't access datetime model object

  - by NomadicRiley

  I've created a model that has 3 string columns and a datetime. Everything is running in SQLite3 and I can view the records in my table just fine using Lita. I'm trying to display the values in a page (index action) using code like this: <% @details.each do |lifeCycle| % <%= debug(lifeCycle)% <%= lifeCycle.lifeCycleId % <%= lifeCycle.eventType % <%= debug(lifeCycle.timeId) % <% end % From the debug I get a result like this: --- !ruby/object:LifeCycle attributes: eventType: Order created_at: "2111359287.23037" timeId: "2455364.89983796" eventId: "98765" updated_at: "2111359287.23037" lifeCycleId: "12345" id: "1" attributes_cache: {} But whenever I try to access the event timeId - i' getting a nil value. This is true if i try to run debug on just that field debug(lifeCycle.timeId), or call a function on it. Is there something obvious I'm missing here?

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• join query with lowstock products with another table in magento

  - by muralikalpana

  I want to display some attributes in reports/products/lowstock grid. here how can i join another table with lowstock product id? here is the query /** @var $collection Mage_Reports_Model_Resource_Product_Lowstock_Collection */ $collection = Mage::getResourceModel('reports/product_lowstock_collection') ->addAttributeToSelect('*') ->setStoreId($storeId) ->filterByIsQtyProductTypes() ->joinInventoryItem('qty') ->joinInventoryItem('low_stock_date') ->useManageStockFilter($storeId) ->useNotifyStockQtyFilter($storeId) ->setOrder('qty', Varien_Data_Collection::SORT_ORDER_ASC); here i have to join with this productid with another table. i am not getting results if i use this query. $collection->getSelect()->join(array('t2' => 'lowstockorders'),'lowstock_inventory_item.product_id = t2.product_id','t2.product_id'); please anybody tell me how to join these tables thanks, murali

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• Flex - Use Variables for Object Attribute Names

  - by Immanuel

  How do you use variables to access Object attributes? Suppose I have an Object declared as follows, var obj:Object = new Object; obj.Name = "MyName"; obj.Age = "10"; How would i do something like this, var fieldName:String = "Name"; var fieldAge:String = "Age"; var Name_Age:String = obj.fieldName + " ," + obj.fieldAge; The code above treats 'fieldName' and 'fieldAge' as attribute name itself. I want to treat the same as a variable, and map the value associated with the variable as the Object attribute name.

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• TinyMce plugin, how to copy 'Link' functionality.

  - by Tom

  I'm creating a new plugin for TinyMce. However I cannot find any examples to see some of the functionality I've seen in other plugins. I've read their source code but I cannot find where it is done: When you click on an 'A' element, the link/unlink buttons in the taskbar become enabled. When you right click on an 'A' element, then click on the "Insert/edit link" icon that is shown in the popup menu, the "Insert/edit link" window is setup (has all the attributes for that particular link) prefilled. Could you suggest somewhere where I could learn how to do this? A file and line number is fine. Thanks in advance.

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• C#: Resource file refactoring

  - by Svish

  Does anyone know of a good tool for refactoring resources in a visual studio 2008 solution? We have a number of resource files with translated text in an assembly used for localizing our application. But they have gotten a bit messy... I would like to rename some of the keys, and move some of them into other resource files. And I would like those changes be done in my code, and the translated versions of the resource files as well. Maybe a some analysis on what strings are missing in the translated versions, and what strings have been removed from the original as well... Does anyone know of a good visual studio extension or ReSharper plugin that can help me with this? Right now it is kind of a pain, because I have to first rename the key in the base resource file, then in the localized versions. And then compile to get all the compile errors resulting from the key which now have a different name, and then go through and fix them all... very annoying =/

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• Are UIView's in TableViewCells cause for performance problems?

  - by iFloh

  Hi, I have a UITableView of UITableViewCells that so far performed well. I now aded a simple UIView to my UITableViewCell as a color indicator (backgroundColor only, no other content or attributes). Running the tableview again I realise scrolling is not as smooth as it used to be. The tableView suddenly also takes long time (~1+ secs) to come back again when returning from a subview (e.g. return from the view that gets pushed upon selection of a cell). Any ideas why the added UIView would be problematic? Why are the labels (being a subclass of UIView) not cause for similar issues?

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• Rails subscription limitations

  - by David Lyod

  I have an application with set limits on subscription attributes i/e a user can have five projects for subscription A but have ten for subscription B At present I run a check on there current usage when linking to the create action and if they are over there limit I do not display the link to create a new project. On the view (for the new project ) I again run the check (in a helper) to see if they can create a new project and if they are not I display a message stating so and a little upgrade link. Is this a secure method of stopping a user bypassing there subscription attribute limitations ? What about direct PUT requests etc ?

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• How can I clone a .NET solution?

  - by tobinharris

  Starting new .NET projects always involves a bit of work. You have to create the solution, add projects for different tiers (Domain, DAL, Web, Test), set up references, solution structure, copy javascript files, css templates and master pages etc etc. What I'd like is an easy way of cloning any given solution. If you use copy/paste, the problem is that you need to then go through renaming namespaces, assembly names, solution names, GUIDs etc. Is there a way of automating this? Something like this would be great: solutionclone.exe --solution=c:\code\abc\template.sln --to=c:\code\xyz --newname=MySolution I'm aware that Visual Studio has project templates, but I've not seen solution templates. Ideas welcome, thanks in advance folks!

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• Symfony 2 form repeated validation in Entity with annotation

  - by Sukhrob

  My question is "How can I do form repeated validation in Entity with annotation?". I have an Account entity with (email, password and confirmPassword) attributes. When a new user registers a new account, he/she has to fill in email, password and confirmPassword fields. Obviously, password and confirmPassword fields must match. I saw an example of this validation with pure php (form builder) in Stachoverflow like below. $builder->add('password', 'repeated', array( 'type' => 'password', 'first_name' => 'Password', 'second_name' => 'Password confirmation', 'invalid_message' => 'Passwords are not the same', )); But, this is not what I want. I want this functionality with annotation in my Account entity. Maybe * @Assert\Match( * matchField = "password", * message = "The password confirmation does not match password." * ) protected $confirmPassword;

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• C# Why does calling an interface member from a class generate an error?

  - by Jack

  So I have an interface: interface IFoo { int Bar(); int this[int i] {get; set;} } And a class that derives from it class Foo : IFoo { public int IFoo.Bar() { //Implementation { public int IFoo.this[int i] { //Implementation } } Now, I try to do this: var fooey = new Foo(); int i = Fooey.Bar(); or this: int i = Fooey[4]; I would expect these to work properly. However, the compiler generates an error as if such members don't exist. Why is that? I am aware I can cast Foo as IFoo, but I am also aware that casting is costly to performance, which is often the reason to use interfaces in the first place. EDIT 1: These are the errors generated 'Foo' does not contain a definition for 'Bar' and no extension method 'Bar' accepting a first argument of type 'Foo' could be found (are you missing a using directive or an assembly reference?) "Cannot apply indexing to an expression of type 'Foo'"

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