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C_sharp : I am rendering some simple text to a PDF in C # using Telerik : This works great locally.I 've set up an Azure app service , and I am getting the following error when I run reportProcessor.RenderReport ( ) : I feel like this might be an issue with the way I 've configured my Azure app service . Here is my con... | Telerik Reporting produces pdf locally , but not on Azure |
C_sharp : I am currently working with .Net 2.0 and have an interface whose generic type is used to define a method 's return type . Something likeMy problem is that some classes that implement this interface do not really need to return anything.In Java you can use java.lang.Void for this purpose , but after quite a bi... | java.lang.Void in C # ? |
C_sharp : We have a legacy .NET Remoting-based app . Our client client libary currently supports only synchronous operations . I would like to add asynchronous operations with TPL-based async Task < > methods.As proof of concept , I have set up a basic remoting server/client solution based a modified version of these i... | Wrap .NET Remoting async method in TPL Task |
C_sharp : I was looking at the IL code of a valid method with Reflector and I 've run into this : Instructions with the suffix .s are supposed to take an int8 operand , and sure enough this should be the case with Leave_S as well . However , 0x0103 is 259 , which exceeds the capacity of an int8 . The method somehow wor... | IL short-form instructions are n't short ? |
C_sharp : I started a UWP app on a laptop running Visual Studio 2015 Update 3 . All was well and good , able to run and test it on both my laptop and my phone with no issues at all.I added the project to Source Control ( private Git server ) and pulled the repo on my home PC . The project opens in VS2015 Update 3 on my... | UWP app wo n't launch on second machine |
C_sharp : I created a method to abstract try/catch functionality . I have about 30 methods that have this exact same try/catch scenario . So I put it in one method : Now , most of the methods call it like this : My issue is that I have just a couple of methods that call it without needing to return a value : However , ... | Use func method for an action also ? |
C_sharp : So , I just hate using true/false as method arguments for `` enabled '' / '' disabled '' . To freely quote Jeff : `` I dislike it on a fundamental level '' .I repeatedly find myself defining my own enums on every new project in different namespaces all over the place , like these : Is there a generic enum I c... | Is there a ( well hidden ) generic enum anywhere in the BCL for Enabled/Disabled ? |
C_sharp : Help me settle an argument here . Is this : treated exactly the same as this : Ie . does it make a difference if I state specifically that the string s is a const.And , if it is not treated in the same way , why not ? <code> SqlCommand cmd = new SqlCommand ( `` sql cmd '' , conn ) ; const string s = `` sql cm... | C # - Is this declared string treated as a const ? |
C_sharp : In the code below , I am assigning a string to text box . The text box text is wrapped , so words will be shifted to the next line if they can not fit in same line.C # : XAML : Now , with the example above , it may happen that on the last line in the text box the word `` Eyes '' is the only word due to wrappi... | How to check if the last line in a text box has only one word ? |
C_sharp : I 've noticed something odd about using the bitwise XOR operator on bytes in C # . Odd to my mind , at least.I also see this issue using short , but not int or long.I thought the last two lines were equivalent , but that does n't seem to be the case . What 's going on here ? <code> byte a = 0x11 ; byte b = 0x... | C # XOR operators : ^ vs ^= and implicit type conversion |
C_sharp : I always saw people always talking about using framework like Ninject , Unity , Windsor to do the dependency resolver and injection . Take following code for example : My question is : why ca n't we simply write as : In that case seems we do n't need any framework , even for the unit test we can easily mock.S... | Why we need framework to do the Dependency Resolver ? |
C_sharp : Given two implementations of Comparison methods : Why would n't the following conditional operator code block compile : Compiler error : `` Type of conditional expression can not be determined because there is no implicit conversion between 'method group ' and 'method group ' '' However , the equivalent code ... | Conditional operator and Comparison Delegate |
C_sharp : I want to retrive the number sequence which is at the end of string . for e.g . gives me result 56 but I want the result as 1234 . How should I do this ? <code> string contentDbIndex = Regex.Match ( `` ab56cd1234 '' , @ '' \d+ '' ) .Value ; | How to get number at the end of string ? |
C_sharp : I am building a little 2048 WinForms game just for fun.Note that this is not about a 2048 AI . I am just trying to make a 2048 game that can be played by humans.I first decided to use 0-17 to represent the tiles . 0 represents an empty tile . 1 represents a 2 tile . 2 represents a 4 tile . 3 represents a 8 ti... | How can I figure out which tiles move and merge in my implementation of 2048 ? |
C_sharp : I am in the process of converting a Classic ASP/VBScript application to C # /ASP.Net . The VBScript part of the application is a series of individual scripts performed each month on a specific date with each individual task set up in Windows Scheduler . There are about 35 tasks which include database inserts ... | C # Scheduled Series Of Tasks |
C_sharp : I 'm converting a VB.Net app into C # , and have noticed that in the VB.Net code , there is a private member variable , which is initialised using Me like this : When I convert this to C # code like this : I have the error Argument is value while parameter type is ref.If I put ref in front of the parameter th... | Why in C # this is not allowed in member initializer , but in VB.Net Me is allowed |
C_sharp : I have two ServiceStack servers X and Y. Server X has functionality to register and authenticate users . It has RegistrationFeature , CredentialsAuthProvider , MemoryCacheClient and MongoDbAuthRepository features to handle the authentication.Recently , I introduced server Y and GUI forms that talk to server Y... | Passthrough Authentication in ServiceStack |
C_sharp : I see several StackOverflow questions on this already but not of them seem to match my scenario . I promise I looked.I have some queries against my database that I 'm using linq to do and I ca n't figure out why the incorrect SQL is being generated . This is happening in several places in my code . I 'm hopin... | Why does Linq ignore my where clause ? |
C_sharp : I am new to C # , so please bear with me as I have inherited a script that I 'm attempting to tweak.I want to get the output of SQL PRINT/RAISERROR statements to show up in a log file that has been declared in another part of the script.This is my method I 'm calling : This is the info handler method : Instea... | C # output SQL Server Messages to text file |
C_sharp : At the risk of asking a question that has already been asked butis there a counterpart in Java for the Type type available in C # ? What I want to do is filling an array with elements which reflect several primitive types such as int , byte etc.In C # it would be the following code : <code> Type [ ] types = n... | type of types in Java |
C_sharp : I am working on some code to use HttpWebRequest asynchronously . If any of you have ever done this before , then you know that error handling can be a bit of a pain because if an exception is thrown in one of the callback methods , it ca n't be passed back to the calling code via a try/catch block.What I want... | What 's the best way to handle asynchronous HttpWebRequest exceptions in C # ? |
C_sharp : Given the following setup in TPL dataflow.i am wondering how I can mark this to complete because of the cycle . A directory is posted to the dirBroadcast broadcaster which posts to the dirfinder that might post back new dirs to the broadcaster , so i cant simply mark it as complete because it would block any ... | How to mark a TPL dataflow cycle to complete ? |
C_sharp : Compiles but shouldn'tErrors but shouldn'tCompiler Error Text : -2147483648 can not be converted to a ulongQuestion : I would expect the opposite to occur . Can anyone explain why this is ? Also how I can print this flags attribute to a byte [ ] for inspection ? <code> [ Flags ] enum TransactionData : long //... | Unexpected behavior between [ Flags ] enum : long vs [ Flags ] enum : ulong |
C_sharp : I 've been struggling with a problem when downloading very big files ( > 2GB ) on Silverlight . My application is an out-of-browser Download Manager running with elevated permissions.When the file reaches a certain ammount of data ( 2GB ) , it throws the following exception : The only clue I have is this site... | ArgumentOutOfRangeException when downloading file via Stream.Read |
C_sharp : Is there any way to call write generic programs and algorithms in C # while avoiding the overhead of a dynamic solution ? Consider a simple example : Which you might call as : While seemingly efficient , this benign-looking example performs an indirect ( i.e . virtual ) call for every comparison.Obviously , t... | How to write generic code while avoiding indirect calls ? |
C_sharp : Whenever I try to upload a large video via Direct Upload using the YouTube API . I get an OutOfMemory Exception . Is there anything I can do to get rid of this ? The YouTube API does not say anything about video size limit using direct upload.I gave up on the Direct Upload . Now I trying the resumable upload ... | YouTube Direct Upload - OutOfMemory Exception |
C_sharp : I 'm using Facebook as a login provider for my web application ( ASP.NET MVC ) .My login works similar to another StackOverflow post How to securely authorize a user via Facebook 's Javascript SDK . I also share the user 's concerns.The flow for my login is as Follows:1 . The user presses the login button.2 .... | How do I use a Facebook signed_request in .NET ? |
C_sharp : How does the is operator work with respect to the DLR ? To make my question a little more explicit , consider the following signature : By default , what conditions are necessary for Is < T > to return true ? Furthermore , does the DLR provide any mechanism to customize this behavior ? <code> public bool Is <... | How does the `` is '' operator work with dynamic objects ? |
C_sharp : I have a simple Parent Child table in a database like soThe data that I have in them isParent TableChild TableThese tables are mapped to Parent and Child C # objects using the Linq-2-SQL designer in Visual Studio with no non standard options.I made a simple test program to query all child with their parentsTh... | Why does linq-2-sql create extra unnecessary objects ? |
C_sharp : I read that sometimes that calling directly a Task can lead to a deadlock of the main thread.Here 's my async method : I tried a lot of ways to run this task in a sync function . Here 's some examples : I want to know which is better solution to run the async method synchronously in the syncFoo ( ) without ca... | Prevent deadlock by running a Task synchronously - Windows Service |
C_sharp : I have a list of bool , and a list of strings . I want to use IEnumerable.Zip to combine the lists , so if the value at each index of the first list is true , the result contains the corresponding item from the second list . In other words : The simplest solution I could come up with is : ... but I suspect th... | Linq : Exclude results using Zip |
C_sharp : When I use expression trees to replace a method , such as Math.Max , it looks like it successfully replaces it in the expression tree . But when I go to use it in Entity Framework , it throws an exception about not supporting Math.Max for Entity Framework . But I am explicitly replacing it.Does anyone know wh... | Expression Tree - Math.Max replacement |
C_sharp : Suppose I have three objects : ' a ' , ' b ' and ' c'.Object ' a ' and ' c ' are long-lived , statically referenced service singletons.Object ' b ' is short-lived , i.e . no static references keep it alive.Now suppose object ' a ' creates an instance of object ' b ' in the scope of one of its methods , e.g.Fu... | does passing a method of one object to another object keep the first object alive ? |
C_sharp : I 'm in the process of designing a system that will allow me to represent broad-scope tasks as workflows , which expose their workitems via an IEnumerable method . The intention here is to use C # 's 'yield ' mechanism to allow me to write psuedo-procedural code that the workflow execution system can execute ... | Is this good design of a workflow-esque system ? |
C_sharp : I have some working code which produces a correct signature of a string if I load a certificate from a file or from the current user 's store . However , if I load the exact same certificate ( same .p12 and same thumbprint ) from the Machine certificate store , it behaves differently . When loaded from that s... | Cryptography : Why am I getting different RSA signatures depending on which certificate store the certificate was loaded from ? |
C_sharp : With this code for a very basic logger : when I try it from a few threads simultaneously I quickly get the error : Why the lock is not preventing the threads to access the file at the same time ? It does n't matter if the threads call the same instance or different instances to the same file.Also I thought It... | Why the lock in this code is not working ? |
C_sharp : Really curious for the below program ( yes run in release mode without debugger attached ) , the first loop assigns a new object to each element of the array , and takes about a second to run . So I was wondering which part was taking the most time -- object creation or assignment . So I created the second lo... | C # performance curiosity |
C_sharp : I 'm designing an application that will allow me to draw some functions on a graphic . Each function will be drawn from a set of points that I will pass to this graphic class.There are different kinds of points , all inheriting from a MyPoint class . For some kind of points it will be just printing them on th... | Designing a class in such a way that it does n't become a `` God object '' |
C_sharp : Doing an experiment of translating .NET IL to C++ in a human readable fashion.Here is the issue : C # allows you to resolve multiple interfaces with the same method name that only differ in return type . C++ does n't seem to support this however making resolving two interfaces impossible using the vTable ( or... | C++ multiple interfaces that only differ in return type ? |
C_sharp : As you 're developing you often use things like oras a placeholder to remind you to finish something off - but these can be missed and mistakenly end up in the release.You could use something likeso it wo n't compile in Release build - but is there a more elegant way ? <code> throw new NotImplementedException... | Elegant way to stop release compilation with error |
C_sharp : So I have a case where the layout has evolved to become more complicated . There 's the usual things like @ section styleIncludes { ... } , then other sections that define all kinds of the things that each page can optionally ( but almost always ) specify like the structure of the current pages breadcrumb . T... | Hint/Fluent for razor section names ? |
C_sharp : When exposing a set of related functions in Powershell cmdlets , is it possible to share the property names and summary help to normalize these across cmdlets in an assembly ? I know that this can be done with derived classes , but this solution is awkward at best when there are multiple cmdlets with differen... | Is it possible to share properties and comments between Powershell cmdlets in c # ? |
C_sharp : Given a list of dates in descending order , this code will find the largest date where the date is < = searchDate.How would I write a binary search function to replace this method ? I 'm struggling to implement it for an inexact comparison like this.This method is called frequently , and can contain several t... | Binary search list of dates for largest date where date < = n |
C_sharp : I did a search for an HsbToRgb converter in the docs but did n't find anything containing `` hsb '' or `` hsl '' , so I 'm guessing it just does n't exist . Just to make sure , though , are there any classes that support this conversion ? UpdateI ended up going with this , which is slightly different than 0xA... | Does the .NET Framework 3.5 have an HsbToRgb converter or do I need to roll my own ? |
C_sharp : If I run this test : I get the following result : When I use the regular For : The output is : The last result is a Triangular Distribution and it is the expected output.The purpose of my question is not to discuss the applicability of parallelism . The question is why the Parallel.For behaves that way ? <cod... | Parallel.For and For yield different results |
C_sharp : I have the following function in c # : Since TModel is clear from a function parameter I want some way to not specify its type when calling a function . Ideally I want to call it like : Since this is probably impossible , I came up with the following : So I 'm now calling it like : Are there other possibiliti... | Syntax sugar for double-generic function |
C_sharp : How to write correct Linq expression used in generic for condition `` where '' Repositor.csbut this with Linq expression will run <code> public static class ConStr { public static MySqlConnection Conn ( ) { return new MySqlConnection ( ConfigurationManager.ConnectionStrings [ `` DBCN '' ] .ConnectionString ) ... | Linq expression IEnumerable < TEntity > does not contain definition of where |
C_sharp : It is second nature for me to whip up some elaborate SQL set processing code to solve various domain model questions . However , the trend is not to touch SQL anymore . Is there some pattern reference or conversion tool out there that helps convert the various SQL patterns to Linq syntax ? I would look-up way... | How to get linq to produce exactly the sql I want ? |
C_sharp : I have a small 3D vector class in C # 3.0 based on struct that uses double as basic unit.An example : One vector 's y-value isI subtract a vector with an y-value ofThe value for y I would expect is Instead I getWhen I 'm doing the whole computation in one single thread , I get ( 1 ) . Also the debugger and VS... | Can floating-point precision be thread-dependent ? |
C_sharp : For some reason my stored procedure is executed without any error from the code-behind in C # but it is not deleting anything at all that the stored procedure has written . I have all the correct parameters and everything . I ran the query from SQL Server with all the same parameters from the C # code and it ... | Stored procedure not running correctly with dynamic sql text |
C_sharp : When loading a rtf file into a Windows Forms RichTextBox it loses the background colour of table cells . If we use a WPF RichTextBox and load the same file everything is formatted as it should.Am I missing something when I load the file into the Windows Forms RichTextBox ? Windows Forms RichTextBox code snipp... | Windows.Forms.RichTextBox Loses table background colours |
C_sharp : This was mentioned in my other question and I thought it might be useful to add it to the record . In the following program , which , if any , of the locally defined delegates are cached between calls to the Work method instead of being created from scratch each time ? <code> namespace Example { class Dummy {... | Which ( if any ) locally defined delegates are cached between method calls ? |
C_sharp : For each entity that has a one to many relation with other entity when i trying to add a new item it seems like i have to define these list of items that relates to this entity.For example , lets say that i have a ProductType entity that has a list of Products as following : when i try to add a new ProductTyp... | How Can I define Nullable EntitySet < > ? |
C_sharp : I 'm looking for a way to navigate between screens in my app . Basically what I 've seen so far consists of passing a string URI to the NavigationService , complete with query string parameters. , e.g.I 'm not really keen on this though ultimately because it requires magic strings , and they can lead to probl... | Is there a typesafe way of navigating between screens in Windows Phone ? |
C_sharp : The azure role setting , is very useful since it lets you change values on-the-fly while IIS is running . But the problem is , if you have plenty users , and if it reads every time the config value from file , it is not best practice to use it without putting it in a static variable . The next problem , if yo... | Does RoleEnvironment.GetConfigurationSettingValue read every time from cfg file ? |
C_sharp : Basic C # question here.What is the difference between creating an instance of a class property / field either as you declare it or in the constructor of the object in question . For example : vs <code> public class MyClass { public MyObject = new MyObject ( ) ; } public class MyClass { public MyObject ; publ... | C # - What 's the difference between these two ways of instancing a class property ? |
C_sharp : Silverlight Unit Test Framework has an [ Asynchronous ] attribute ( AsynchronousAttribute ) that causes the tests to only end when EnqueueTestComplete ( ) gets called . This allows for a simple way to write tests that need to wait for an event to occur before they end . Now I am trying to pick a favorite gene... | Asynchronous tests in VSUTF , NUnit , xUnit.NET , MbUnit vs. SUTF ? |
C_sharp : I am querying an xml file and returning 3 attributes per selection ( each entry that meets my criteria will return 3 attributes details ) . I need to store these values , and then later look up the first attribute , and return the 2 other stored attributes related to it . The above code returns 3 attributes p... | How to store and lookup data , based on multiple xml attributes ? |
C_sharp : The question seems simple . Although the documentation says it does : the following code gives an error : saying that there is no conversion from KeyCollection < T > to IReadOnlyCollection < T > .Moreover polish documentation ( french too for that matter ) says it does not : Which is it ? And in case it 's th... | Does ` Dictionary < TKey , TValue > .KeyCollection ` implement ` IReadOnlyCollection ` or not ? |
C_sharp : when choosing a character I currently have a base classAnd my characters derive from this classLastly I use this code to select the WarriorSo this way works pretty fine . But when it comes to cooldowns etc . I want to stay with a clean code so I thought about creating a Ability class.My abstract parent classT... | creating ability objects in Unity |
C_sharp : I have a design problem that I ca n't figure out . Here 's what I 've got : In general , I have two general types of objects Strikes and Options . These have been abstracted into two interfaces IStrike and IOption.Let 's say that IOption has the following fields , in reality there are about 10 times as many ,... | Can I combine composition and inheritance with interfaces in C # |
C_sharp : Excel 2016 seems to trigger a programmatically added undo level upon saving , which does not happen in earlier versions of Excel ( 2013 , 2010 , and 2007 ) . To reproduce this apparent bug , open a new workbook and save it as a macro-enabled workbook ( .xlsm file ) . Paste the following code into the ThisWork... | Excel 2016 triggers undo upon save bug ? |
C_sharp : I 've borrowed the code below from another question ( slightly modified ) , to use in my code : The original author of this code correctly adheres to the warnings given in MSDN 's implicit & explicit documentation , but here 's my question : Is explicit always necessary in potentially exceptional code ? So , ... | Why/when is it important to specify an operator as explicit ? |
C_sharp : I have an Web API 2 end point where by I want to asynchronously carry out an operation while I retrieve and verify a user . If this user does not exist I want to return a 404 Not Found like so : Could this cause me potential issues if the user was to equal to null and the method returned without awaiting the ... | Bad practice to return from method before async operation completes ? |
C_sharp : I 'm looking for a way to program a custom authorization filter in ASP.NET 5 as the current implementation relies in Policies/Requirements wich in turn rely solely in the use of Claims , thus on the umpteenth and ever-changing Identity System of wich I 'm really tired of ( I 've tried all it 's flavours ) .I ... | DI into a Requirement/Policy in ASP.NET MVC 6 |
C_sharp : I was recently attempting to answer a question that a user posted about why the decimal struct does not declare its Min/Max values as const like every other numeric primitive ; rather , the Microsoft documentation states that it is static readonly.In researching that , I dug through the Microsoft source code ... | 'Decimal ' source code from Microsoft - will it build ? |
C_sharp : I have a requirement that calls for matching a Sample Set of color values against a Known Set of values to find either an exact match , or matches that are within an acceptable distance . I 'm not entirely sure what algorithm would be best suited for this and I 'm looking for suggestions . I thought about usi... | Suggest an algorithm for color pattern matching against a large known set |
C_sharp : In Xamarin google maps for Android using C # you can create polygons like so based on this tutorial : However I have downloaded a CSV file from my Fusion Table Layer from google maps as I think this might be the easiest option to work with polygon/polyline data . The output looks like this : I uploaded a KML ... | Extracting data from CSV file ( fusion table and kml workaround ) |
C_sharp : During development I had a TempTextBlock for testing and I 've removed it now . It builds successfully , but when I try to create a package for store , it gives this error : error CS1061 : 'MainPage ' does not contain a definition for 'TempTextBlock ' and no extension method 'TempTextBlock ' accepting a first... | Page does n't contain a definition for X |
C_sharp : Here 's the simplified case . I have a class that stores a delegate that it will call on completion : I have another utility class that I want to subscribe to various delegates . On construction I want itself to register to the delegate , but other than that it does n't care about the type . The thing is , I ... | Constructor that takes any delegate as a parameter |
C_sharp : My expectation is that AutoMapper ( 3.3.0 ) does not automatically resolve string - > DateTime conversions , even when the string is in a well-understood format . The lack of inclusion of a default string - > DateTime converter is noted ( albeit four years ago ) in a comment by the library author , Jimmy Boga... | AutoMapper inconsistently automatically resolving string - > DateTime |
C_sharp : OK , Custom Policy Based Authorization in ASP.NET Core . I kinda of understood the idea of this new identity framework , but still not 100 % clear what you can achieve with this . Assuming we have an Action in HomeController called List . This action will query and display a list of products from the database... | ASP.NET Core Custom Policy Based Authorization - unclear |
C_sharp : I 'm launching an external application from a ContextMenu , and I must block the the source application while the target application is running . To achieve this I 'm using Process.WaitForExit ( ) to avoid the source application responding to events.The problem is the context menu is still ahead the target ap... | WPF ContextMenu still visible after launching an external process |
C_sharp : Is there a way I can determine in .NET , for any arbitrary SQL Server result set , if a given column in the result can contain nulls ? For example , if I have the statementsand and I get a datareader like this : can I have a function like this ? I want it to return true for the first statement , and false for... | SqlDataReader find out if a data field is nullable |
C_sharp : I have a List < T > of available times within a 24 hour day , and two TimeSpans , minTime and maxTime.I need to find a time of day within the List < T > that lands between the minTime and maxTime , however due to this being used in multiple timezones , the minTime and maxTime can be on separate days and span ... | What am I missing in this algorithm to find a TimeOfDay between two TimeSpans that may span separate days ? |
C_sharp : I was using Dapper and having it return a dynamic IEnumerable , like this : Here , rows is of type IEnumerable < dynamic > . The IntelliSense says FirstOrDefault ( ) is awaitable , and has the usage await FirstOrDefault ( ) . Not all LINQ queries are shown as awaitable , but it seems like especially those tha... | Why is First ( ) or ElementAt ( ) on a dynamic IEnumerable awaitable ? |
C_sharp : I have a Control lblDate in User Control MainScreen . I would like to modify it in a method in class Date , which is in another project AoWLibrary . I ca n't reference it because AoWLibrary is a dependent of the first project.I tried to make lblDate static but the compiler kept throwing errors at me , and I h... | Modify Windows Forms Control from another Project |
C_sharp : When writing a method chain for LINQ , I can do the Where statements one of two ways : Or Are there any benefits of one over the other ? Do n't worry too much about the datatypes in this example , but if there are issues with datatypes , then that would be good to know too.The obvious one is that the object i... | Linq Where Clauses - Better to stack or combine ? |
C_sharp : I 'm currently working on an emulation server for a flash-client based game , which has a `` pets system '' , and I was wondering if there was a simpler way of going about checking the level of specified pets.Current code : Yes , I 'm aware I 've misspelt Experience , I had made the mistake in a previous func... | Simpler / more efficient method of nested if ... else flow ? |
C_sharp : I am writing a Cmdlet and need to pass object structures into an API client that may contain PSObjects . Currently , these serialise as a JSON string containing CLIXML . Instead , I need it to be treated like an object ( including the NoteProperties in PSObject.Properties as properties , and recursively seria... | How can I serialise PSObjects in C # with JSON.NET ? |
C_sharp : I have a method with the following signatureFrom a point in my code I need to move up the stacktrace to find the closest method with the SpecificationAttribute ( performance is not an issue here ) . I find this method but I can not find any custom attributes on it.I do n't think I 've ever seen this happen . ... | Why can I not find a custom attribute on this MethodInfo |
C_sharp : PreambleI 'm trying to disassemble and reverse-engineer a program whose author is long gone . The program provides some unique features that I have yet to find elsewhere and ... I 'm curious and intrigued by reverse-engineering the program . If you 're just gon na try and help me find another program ... do n... | Ca n't decrypt these strings |
C_sharp : Does anyone know why the last one does n't work ? <code> object nullObj = null ; short works1 = ( short ) ( nullObj ? ? ( short ) 0 ) ; short works2 = ( short ) ( nullObj ? ? default ( short ) ) ; short works3 = 0 ; short wontWork = ( short ) ( nullObj ? ? 0 ) ; //Throws : Specified cast is not valid | Null coalescing operator giving Specified cast is not valid int to short |
C_sharp : I am trying to get the heart rate from a Microsoft Band . It should be updating whenever the value changes . I am then trying to display that value in a TextBlock . I first create an instance of IBandClient , and set its HeartRate.ReadingChanged method like this : Then I try to update the value like this : He... | Get Heart Rate From Microsoft Band |
C_sharp : Eric Lippert has explained in his blog post at http : //blogs.msdn.com/b/ericlippert/archive/2009/12/10/constraints-are-not-part-of-the-signature.aspx why constraints are not considered for type inference , which makes sense given that methods can not be overloaded by simply changing type constraints . Howeve... | Is there a workaround to C # not being able to infer generic type arguments using type constraints ? |
C_sharp : Is there any difference between the following two statement ? They both work . <code> if ( ( ( Func < bool > ) ( ( ) = > true ) ) ( ) ) { ... . } ; if ( new Func < bool > ( ( ) = > true ) ( ) ) { ... . } ; | Cast to Func vs new Func ? |
C_sharp : I declared the function Process32FirstW and the structure PROCESSENTRY32W like this : When calling Process32FirstW ( with a 64-bit process ) , I always get a TypeLoadException saying The type ProcessEntry could n't be loaded , because the object field at offset 44 is aligned wrong or is overlapped by another ... | ` PROCESSENTRY32W ` in C # ? |
C_sharp : I get file size =0the finilizer should have executed because I derive from CriticalFinalizerObjectI do n't want to use Trace.Close ( ) not in the Finalizer.editafter @ eric Lippert reply : Ive re-edited the code trying to match it to : constrained execution region ( but still no success ) <code> class Program... | Why my Close function is n't called ? |
C_sharp : I have been trying to use Deedle F # Library to write an F # batch program . It has worked perfectly . However , I am not sure about the best design for the following 2 tasks : Combine the F # module into a existing ASP.net MVC/Web Api systemCreate a WPF interface to serve as a control panel and visual depend... | Designing an F # module to be called by C # ( Console/MVC/WPF ) |
C_sharp : I want to Serialize and DeSerialize an object which contains a Lazy Collection of some custom objects . Normally everything works perfectly fine but , if namespaces of classes used for serialization are changed , then this issue occurs . I have written a SerializationBinder to point to right classes while des... | Not able to deserialize Lazy object |
C_sharp : I encountered some interesting behavior in the interaction between Nullable and implicit conversions . I found that providing an implicit conversion for a reference type from a value type it permits the Nullable type to be passed to a function requiring the reference type when I instead expect a compilation e... | What is the justification for this Nullable < T > behavior with implicit conversion operators |
C_sharp : In .NET Core and .NET Framework 4.x the following code works as expected : However , in netstandard , the Name property in Group is gone . I 'm wondering if there is a new way of achieving the same thing , or if this is a bug.Edit : I first thought this was a netstandard 2.0 issue , but it looks like the prop... | netstandard - Regular Expression , Group Name inaccessible |
C_sharp : Take the following code : using those typesCompiled with C # 5 compiler against .NET 4.5.1 ( the behaviour is probably the same using older compiler/framework version ) this generates the following error : Now , I have a pretty good idea what is happening under the covers ( I blogged about it here ) but I ca ... | C # dynamic fails invoking method from a base interface |
C_sharp : I 'm writing a Tetris-clone and I 'm prototyping in C # . The final code is supposed to run on an embedded system ( using an 8-Bit CPU and very little RAM ) , so I 'm trying to use a naïve algorithm to do line clear.Right now , my playfield is a 2D Array : ( where TetrominoType is an enum to indicate either N... | Naive Gravity for Tetris game using 2D Array for the playfield |
C_sharp : In C++ the compiler knows about primitive data types such as int , but in C # these are basically structures ( e.g . System.Int32 ) . But can I assume that C # knows about these types . I think that it does , because an int literal in C # is basically an instance of System.Int32 . For example this will work :... | Are C # primitive data types part of the language ? |
C_sharp : I have a Windows application that is connecting to a WCF Data Service hosted on the same machine.The first thing that occurs when the application starts is a query that returns 0 to 3 results . Here 's the code : The very next thing I do is check if ( environments.Count ( ) == 0 ) which takes about 10 seconds... | Why is WCF Data Service performing better while Fiddler is running ? |
C_sharp : I am testing my asp.net core 2.2 web api with Postman . I write the JSON manually like this ( httppatch ) : Now I am thinking how can I build the patch body on the client side.My question is how can I get the equivalent of this code in json to make it look like the one I write manually ? I guess it 's all abo... | Mongodb Bson type to Json |
C_sharp : I have an interesting situation . When I run a query on remote SQL server in Microsoft SQL Server Management Studio it runs fast ( 12 sec ) , but when I run the same query in Entity Framework using DbContext.Database.SqlQuery < EntityType > ( script ) it takes 48 seconds.I tried setting set arithabort on . Th... | Entity Framework data reading performance |
C_sharp : Given this XML ... And this C # code : I know the Xdoc is not empty and contains the right XML.I also implemented some ScottGu code ( http : //weblogs.asp.net/scottgu/archive/2007/08/07/using-linq-to-xml-and-how-to-build-a-custom-rss-feed-reader-with-it.aspx ) as a sanity check and it works exactly as expecte... | Why is n't this LINQ to XML Query Working ( Amazon S3 ) |
C_sharp : I 've a project where I am extensively using the generic C # dictionary . I require composite keys , so I 've been using tuples as keys . At some point I was wondering whether it would be beneficial to use a custom class which caches the hash code : I used new instead of override because I thought it would no... | Why does the C # dictionary not call the hidden GetHashCode method |
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