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  • Difference of two 'uint'

    - by vanslly
    When you attempt to declare an unsigned variable in C#.NET with a value outside its value range it is flagged as a compiler error, but if you produce a negative value at runtime and assign it to that variable at runtime the value wraps. uint z = -1; // Will not compile uint a = 5; uint b = 6; uint c = a - b; // Will result in uint.MaxValue Is there a good reason why unsigned variables wrap in such a situation instead of throwing an exception? Thanks.

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  • Lua : Dynamically calling a function with arguments.

    - by Tipx
    Using Lua, I'm trying to dynamically call a function with parameters. I want to send a string to be parsed in a way that: 1st argument is a class instance "Handle" 2nd is the function to be called All that is left are arguments "modules" is a a table like { string=<instance of a class> } split() is a simple parser that returns a table with indexed strings. function Dynamic(msg) local args = split(msg, " ") module = args[1] table.remove(args, 1) if module then module = modules[module] command = args[1] table.remove(args, 1) if command then if not args then module[command]() else module[command](unpack(args)) -- Reference 1 end else -- Function doesnt exist end else -- Module doesnt exist end end When I try this with "ignore remove bob", by "Reference 1", it tries to call "remove" on the instance associated with "ignore" in modules, and gives the argument "bob", contained in a table (with a single value). However, on the other side of the call, the remove function does not receive the argument. I even tried to replace the "Reference 1" line with module[command]("bob") but I get the same result.

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  • SQL Server - CAST AND DIVIDE

    - by rs
    DECLARE @table table(XYZ VARCHAR(8) , id int) INSERT INTO @table SELECT '4000', 1 UNION ALL SELECT '3.123', 2 UNION ALL SELECT '7.0', 3 UNION ALL SELECT '80000', 4 UNION ALL SELECT NULL, 5 SELECT CASE WHEN PATINDEX('^[0-9]{1,5}[\.][0-9]{1,3}$', XYZ) = 0 THEN XYZ WHEN PATINDEX('^[0-9]{1,8}$',XYZ) = 0 THEN CAST(XYZ AS decimal(18,3))/1000 ELSE NULL END FROM @table This part - CAST(XYZ AS decimal(18,3))/1000 doesn't divide value it gives me more number of zeros after decimal instead of dividing it. (I even enclosed that in brackets and tried but same result) Am i doing something wrong here?

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  • C# - Convert Implict Type to ObservableCollection

    - by user70192
    Hello, I have a LINQ statement that returns an implicit type. I need to get this type to be an ObservableCollection in my Silverlight 3 application. The ObservableCollection constructor in Silverlight 3 only provides an empty constructor. Because of this, I cannot directly convert my results to an ObservableCollection. Here is my code: ObservableCollection<MyTasks> visibleTasks = e.Result; var filteredResults = from visibleTask in visibleTasks select visibleTask; filteredResults = filteredResults.Where(p => p.DueDate == DateTime.Today); visibleTasks = filteredResults.ToList(); // This throws a compile time error How can I go from an implicitly typed variable to an observable collection? Thank you

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  • Rails 3.0/3.2: Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id

    - by Nick5a1
    I'm following the Kevin Skoglund tutorial Ruby on Rails 3 Essential Training, which was written for rails 3.0, though I am currently using 3.2. It uses the following method in the pages_controller with a before_filter to display only the pages which belong to the parent subject. The tutorial explicitly uses .find_by_id because if the result is nil it "will not return an error". However I get the "Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id" error when trying to view a page where @subject has been set to nil. def find_subject if params[:subject_id] @subject = Subject.find_by_id(params[:subject_id]) end end The actual code that is causing the error is: def list @pages = Page.order("pages.position ASC").where(:subject_id => @subject.id) end Is this something that has changed since 3.0? If so, what would be the correct way to implement this functionality in 3.2?

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  • data in mysql show after barcode split and matches character

    - by klox
    i need some code for the next step..this my first step: <script> $("#mod").change(function() { var barcode; barCode=$("#mod").val(); var data=barCode.split(" "); $("#mod").val(data[0]); $("#seri").val(data[1]); var str=data[0]; var matches=str.matches(/EE|[EJU]).*(D)/i); }); </script> after matches..i want the result can connect to data base then show data from table inside <div id="value">...how to do that?

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  • Find/parse server-side <?abc?>-like tags in html document

    - by Iggyhopper
    I guess I need some regex help. I want to find all tags like <?abc?> so that I can replace it with whatever the results are for the code ran inside. I just need help regexing the tag/code string, not parsing the code inside :p. <b><?abc print 'test' ?></b> would result in <b>test</b> Edit: Not specifically but in general, matching (<?[chars] (code group) ?>)

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  • WPF Multiline TextBlock LineBreak issues

    - by KMC
    I have the following code txtBlock1.Inlines.Add("This is first paragraph \n This is second paragraph"); then TextBlock would display: This is first paragraph This is second paragraph But, if I have the following (which I though is equivalent); txtBlock1.Inlines.Add("This is first paragraph"); txtBlock1.Inlines.Add("\n"); txtBlock1.Inlines.Add("This is second paragraph"); TextBlock display: This is first paragraph // but second paragraph missing If I separate out the linebreak then the rest of text after the linebreak doesn't show. Why? I have to use run: Run run1 = new Run(); run1.Text = "First Paragraph"; run1.Text += "\n"; run1.Text += "Second Paragraph"; txtBlock1.Inlines.Add(run1); Then it produce the result correctly. Why I cannot add inline text to Textblock and require me to use Run?

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  • Is it possible to create ICriteria/ICriterion from LINQ or HQL?

    - by adrin
    I am creating a method that can create filter understood by NHibernate (by filter i mean a set of ICriteria object for example) from my abstract filter object. public static IEnumerable<ICriterion> ToNhCriteria(this MyCriteria criteria) { // T4 generated function // lots of result.Add(Expression.Or(Expression.Eq(),Expression.Eq)) expression trees - hard to generate // Is there a way to generate HQL/Linq query here istead? } then i want to do something like session.CreateCriteria<Entity>().Add(myCriteria.ToNhCriteria()) to filter entities. The problem is that using Expression. methods (Expression.Or etc) is quite tedious (the method is generated and i have multiple or statements that have to be joined into an expression somehow). Is there a way to avoid using Expression.Or() and create ICrietrion / ICriteria using LINQ or HQL?

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  • Codeigniter redirect with base_url

    - by Obay
    I noticed that anchor('controller/method') produces a different result than a mere <a href="controller/method"> in that anchor() adds the base_url: anchor(): <a href="http://localhost/dts/controller/method">View Timesheet</a> <a>: <a href="controller/method">View Timesheet</a> How do I achieve this same effect (anchor) in my controller? That is, adding the base_url in my redirects? I'm asking because I have a form that calls another method method2, which has a redirect('controller/method'). But it redirects incorrectly to controller/controller/method, then if the form is submitted again, redirects to controller/controller/controller/method and so on. That's why I'd like to know how to redirect to controller/method with the base_url pre-prended to it. redirect( base_url() . 'controller/method' ) doesn't work. Any ideas?

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  • Reading Character from Image

    - by Chinjoo
    I am working on an application which requires matching of numbers from a scanned image file to database entry and update the database with the match result. Say I have image- employee1.jpg. This image will have two two handwritten entries - Employee number and the amount to be paid to the employee. I have to read the employee number from the image and query the database for the that number, update the employee with the amount to be paid as got from the image. Both the employee number and amount to be paid are written inside two boxes at a specified place on the image. Is there any way to automate this. Basically I want a solution in .net using c#. I know this can be done using artificial neural networks. Any ideas would be much appreciated.

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  • How to get the real type of a value inside string?

    - by CuSS
    I was searching here on StackOverflow about converting string to the real value and i didn't found. I need a function like "gettype" that does something like the result above, but i can't do it all :s gettypefromstring("1.234"); //returns (doble)1,234; gettypefromstring("1234"); //returns (int)1234; gettypefromstring("a"); //returns (char)a; gettypefromstring("true"); //returns (bool)true; gettypefromstring("khtdf"); //returns (string)"khtdf"; Thanks to all :)

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  • iPad: CoreData FetchedRequest Ignores Changes in Predicate

    - by Michael
    Hi there, While programming an iPad-app, I'm just running into trouble using a fetchedResultsController with a "dynamic" predicate. it seems the changes to the predicate get ignored. No matter how the predicate changes, I always get the result of the first fetch ... same code runs without no problems on iphone-env (3.1.x) !! sample : - (void)performSearch:(NSString *)searchText { self.displaySearchResults = TRUE; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"searchWords contains[cd] %@", searchText]; [self.fetchedSearchResultsController.fetchRequest setPredicate:predicate]; NSError *error = nil; if (![self.fetchedSearchResultsController performFetch:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } if(deviceIsIPad) { [self showSearchResults]; } else { [cookBookOverview reloadData]; } } can anyone help plz ? btw.: excuse my painful english ;-)

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  • Latex: stretchable curly braces outside math

    - by basweber
    Hi, I am producing some latex beamer slides (but I think it is not a beamer specific question per se). I have the following: \begin{itemize} \item Issue1 \item Issue2 \item Issue3 \end{itemize} Now, I want to have a right curly brace (i.e. '}') behind the items spreading over issue1 and issue2. And of course I want to write something behind that curly brace. In a perfect world I would write something like: \begin{itemize} \left . \item Issue1 \item Issue2 \right \} One and Two are cool \item Issue3 \end{itemize} This does not work because I am not in a math environment and I can not put the whole snippet inside a math environment because itemize would not work in that case. Is there a clean solution or a hack to produce my desired result? Regards, Bastian.

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  • jQuery get Function Not Returning Data

    - by senfo
    I'm trying to use the jQuery get function to render the results of an HTML page in a div on my page. The result of the get function appears to be successful because the value of textStatus (in the following code block) is "success". The value of data, however, is always empty. $(document).ready(function() { $.get('http://www.google.com', function(data, textStatus){ $('#RSSContent').html(textStatus + ' ' + data); }); }); Any idea what I might be doing wrong? Note: The final code will query an RSS feed, which I plan on transforming and rendering as HTML in the RSSContent div. I simply used http://www.google.com for testing purposes.

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  • How do I return a bit from a stored procedure with nHibernate

    - by tigermain
    I am using nHibernate in my project but I have a stored procedure which just returns a boolen of success or now. How do I code this in c#? I have tried the following but it doesnt like cause I dont have a mapping for bool!!! {"No persister for: System.Boolean, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"} IQuery query = NHibernateSession.CreateSQLQuery("EXEC MyDatabase.dbo.[ContentProvider_Import] :ContentProviderImportLogId", "success", typeof(bool)) .SetInt32("ContentProviderImportLogId", log.Id); var test = query.UniqueResult<bool>(); and the same result from IQuery query = NHibernateSession.CreateSQLQuery("EXEC MyDatabase.dbo.[ContentProvider_Import] :ContentProviderImportLogId") .AddEntity(typeof(bool)) .SetInt32("ContentProviderImportLogId", log.Id); var test = query.UniqueResult<bool>();

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  • In Rails, how can a record belong_to a single user, but also have multiple "secondary" users?

    - by Kuro
    In my app, I have a User model and a Project model. A user has_many assignments and each project belongs_to a user. But along with each project having an owner, the user who created it, I would like the owner be able to share it with others (so that the project gets shown on the other users' account along with their own). I imagine having to use has_many :through, and setting up a projects_users table with a user_id and a project_id. And I guess this would be the end result? Project.first.user # The creator of the project => #<User id: 1, name: 'andrew', etc...> Project.first.users # The users that the creator chose to share it with => [#<User id: 2 ...>, #<User id: 3 ...>] How would I go about doing this? Thanks!

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  • Every 3rd Insert Is Slow On Ms Sql 2008

    - by Chris
    I have a function that writes 3 lines into a empty table like so: INSERT [dbo].[yaf_ForumAccess] ([GroupID], [ForumID], [AccessMaskID]) VALUES (1, 8, 1) INSERT [dbo].[yaf_ForumAccess] ([GroupID], [ForumID], [AccessMaskID]) VALUES (2, 8, 4) INSERT [dbo].[yaf_ForumAccess] ([GroupID], [ForumID], [AccessMaskID]) VALUES (3, 8, 3) For some reason only the third query takes a long time to execute - and with each insert it grows longer. Profiler Image I have tried disabling all constraints on the table - same result. I just can't figure out why the first two would run so fast - and the last one would take so long. Any help would be greatly appreciated. Here is the statistics for a query ran MSSMS: Query: ALTER TABLE [dbo].[yaf_ForumAccess] NOCHECK CONSTRAINT ALL INSERT [dbo].[yaf_ForumAccess] ([GroupID], [ForumID], [AccessMaskID]) VALUES (1, 9, 1) INSERT [dbo].[yaf_ForumAccess] ([GroupID], [ForumID], [AccessMaskID]) VALUES (2, 9, 4) INSERT [dbo].[yaf_ForumAccess] ([GroupID], [ForumID], [AccessMaskID]) VALUES (3, 9, 3) ALTER TABLE [dbo].[yaf_ForumAccess] CHECK CONSTRAINT ALL Stats: Stats

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  • facebook iframe application gives null GET/POST

    - by misterjinx
    hey everybody, I came up to something really strange with a facebook iframe application. I don't know why but my global supervariables $_GET and $_POST are empty (nulls actually)! As far as i know, when using iframe for doing applications all the specific facebook variables are kept inside the $_GET variable. But for some reason now I don't have anything. I don't know what might be the problem. And as this wouldn't be enough, when i submit a form using POST as method, my $_POST variable is also null! What you guys think might be the problem? I've spent half a day trying to figure this out, but i didn't get any result.

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  • KRL and Yahoo Local Search

    - by Randall Bohn
    I'm trying to use Yahoo Local Search in a Kynetx Application. ruleset avogadro { meta { name "yahoo-local-ruleset" description "use results from Yahoo local search" author "randall bohn" key yahoo_local "get-your-own-key" } dispatch { domain "example.com"} global { datasource local:XML <- "http://local.yahooapis.com/LocalSearchService/V3/localsearch"; } rule add_list { select when pageview ".*" setting () pre { ds = datasource:local("?appid=#{keys:yahoo_local()}&query=pizza&zip=#{zip}&results=5"); rs = ds.pick("$..Result"); } append("body","<ul id='my_list'></ul>"); always { set ent:pizza rs; } } rule add_results { select when pageview ".*" setting () foreach ent:pizza setting pizza pre { title = pizza.pick("$..Title"); } append("#my_list", "<li>#{title}</li>"); } } The list I wind up with is . [object Object] and 'title' has {'$t' => 'Pizza Shop 1'} I can't figure out how to get just the title.

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  • Route Links - Url.Action

    - by Jemes
    I'm trying to return my links so they display as /Area_1419.aspx/2/1. I've managed to get that result in example 2 but I don't understand why it works, as I would exspect example 1 below to work. I don't see how Example 2 knows to go to the Area_1419 controller? Route routes.MapRoute( "Area_1419 Section", "Area_1419.aspx/{section_ID}/{course_ID}", new { controller = "Home", action = "Index" } ); Links Example 1 <a href='<%=Url.Action("Area_1419", new { section_ID="2", course_ID="1" })%>'><img .../></a> Returns: /Home.aspx/Area_1419?section_ID=2&course_ID=1 Links Example 2 <a href='<%=Url.Action("index", new { section_ID="2", course_ID="1" })%>'><img .../></a> Returns: /Area_1419.aspx/2/1

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  • How can I use text from an EditText Field into a web page?

    - by S.M. Hasibur Rahman
    Hi there, I am creating a library search engine based on android. I want to have an EditText field in my application, where user will put the search text. And upon clicking the search button it should search using the library web page. I want to use the text being put in the EditText field to be used by the web page in the background and want to show the result to the user. Could find a clue. I will be really grateful if you could answer asap. Thanks. / Hasibur Rahman

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  • ideas for algorithm? sorting a list randomly with emphasis on variety

    - by Steve Eisner
    I have a table of items with [ID,ATTR1,ATTR2,ATTR3]. I'd like to select about half of the items, but try to get a random result set that is NOT clustered. In other words, there's a fairly even spread of ATTR1 values, ATTR2 values, and ATTR3 values. This does NOT necessarily represent the data as a whole, in other words, the total table may be generally concentrated on certain attribute values, but I'd like to select a subset with more variety. The attributes are not inter-related, so there's not really a correlation between ATTR1 and ATTR2. Any ideas for an efficient algorithm? Thanks! I don't really even know how to search for this :)

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  • Expression Tree : C#

    - by nettguy
    My understanding of expression tree is : Expression trees are in-memory representation of expression like arithmetic or boolean expression.The expressions are stored into the parsed tree.so we can easily transalate into any other language. Linq to SQL uses expression tree.Normally when our LINQ to SQL query compiler translates it to parsed expression trees.These are passed to Sql Server as T-SQL Statements.The Sql server executes the T-SQL query and sends down the result back.That is why when you execute LINQ to SQL you gets IQueryable<T> not IEnumetrable<T>.Because IQuerybale contains public IQueryable:IEnumerable { Type Element {get;} Expression Expression {get;} IQueryaleProvider Provider {get;} } Questions : Microsoft uses Expression trees to play with LINQ-to-Sql.What are the different ways can i use expression trees to boost my code. Apart from LINQ to SQL,Linq to amazon ,who used expression trees in their applications? Linq to Object return IEnumerable,Linq to SQL return IQueryable ,What does LINQ to XML return?

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  • PHP: Modifying array recursively?

    - by Industrial
    Hi everybody, I have tried to make a function that iterates through the following array to flatten it and add parent id to children, where applicable. I just can't make it work, so I hope that anyone here has an idea of what to do: Here's the starting point: Array ( [0] => Array ( [id] => 1 ) [1] => Array ( [id] => 2 [children] => Array ( [0] => Array ( [id] => 3 ) ) ) ) The expected result : Array ( [0] => array ( [id] => 1 ) [1] => array ( [id] => 2 ) [2] => array ( [id] => 3, [parent] => 2 ) ) Hope that anyone can point me in the right direction. Thanks a lot!

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