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C_sharp : I 'm writing xml with XmlWriter . My code has lots of sections like this : The problem is that the ThirdPartyLibrary.Serialise method is unreliable . It can happen ( depending on the variable results ) that it does n't close all the tags it opens . As a consequence , my WriteEndElement line is perverted , con... | How to check name of element with WriteEndElement |
C_sharp : I am working with entity-framework . I have a partial class called Company that is generated by EF . The partial class looks like : The type 'BaseModels.Company ' already contains a definition for 'CompanyName ' '' What I want to do is create a derived class from Company that has an extra property.But I want ... | Adding attributes to a derived type |
C_sharp : We utilise a third party web service that returns XML which looks something like ( cut down for brevity ) : For a specific product code I need to obtain the realm name i.e . the inner text of : < a name= '' realm '' format= '' text '' > -u @ surfuk2 < /a > Because every element name is either < block > or < a... | Is this the most efficient way to express this XDocument query ? |
C_sharp : When we create a class that inherits from an abstract class and when we implement the inherited abstract class why do we have to use the override keyword ? Since the method is declared abstract in its parent class it does n't have any implementation in the parent class , so why is the keyword override necessa... | Why is it required to have override keyword in front of abstract methods when we implement them in a child class ? |
C_sharp : I 'm trying to project from my Order model to my OrderDTO model . Order has an enum . The problem is that projection does n't work if I try to to get the Description attribute from the Enum . Here it 's my code : OrderStatus.cs : Order.cs : OrderDTO.cs : With this following configuration in my AutoMapper.cs :... | c # - Enum description to string with AutoMapper |
C_sharp : Why is the behavior of Default Interface Methods changed in C # 8 ? In the past the following code ( When the Default interface methods was demo not released ) : has the following output : Console output : I am a default method in the interface ! I am an overridden default method ! But with the C # 8 last ver... | How can I call the default method instead of the concrete implementation |
C_sharp : Not a duplicate of this.I want to make a string have a max length . It should never pass this length . Lets say a 20 char length . If the provided string is > 20 , take the first 20 string and discard the rest . The answers on that question shows how to cap a string with a function but I want to do it directl... | Cap string to a certain length directly without a function |
C_sharp : I 'm trying to use the ticker data for the Coinigy websocket api , to get the stream of real time trades and prices of crypto assets.I 've tried the following demo with no success , and I get a response of : '' Socket is not authenticated '' <code> internal class MyListener : BasicListener { public void onCon... | Ca n't authenticate using Socketcluster V2 for Coinigy Exchange websocket ticker api |
C_sharp : I have two objects : andAnd I would like to create a switch case where depending on the BugReportFilter choose my output will be a specific BugReportStaus.So I created a method CheckFilterThe problem is that in the case of a BugReportFilter.Open option I should return BugReportStatus.OpenAssigned AND BugRepor... | Switch with enum and multiple return |
C_sharp : The purpose of the interface IDisposable is to release unmanaged resources in an orderly fashion . It goes hand in hand with the using keyword that defines a scope after the end of which the resource in question is disposed of.Because this meachnism is so neat , I 've been repeatedly tempted to have classes i... | Is abusing IDisposable to benefit from `` using '' statements considered harmful ? |
C_sharp : A vs. BLately I have been confused why many would say that definitely A does a much faster processing compared to B . But , the thing is they would just say because somebody said so or because it is just the way it is . I suppose I can hear a much better explaination from here . How does the compiler treats t... | addition of strings in c # , how the compiler does it ? |
C_sharp : I have the following code : This code compiles , and it surprises my . The explicit convert should only accept a byte , not a double . But the double is accepted somehow . When I place a breakpoint inside the convert , I see that value is already a byte with value 2 . By casting from double to byte should be ... | Compiler replaces explicit cast to my own type with explicit cast to .NET type ? |
C_sharp : Steps to reproduce : Open Visual Studio 2017 with latest update . Create a UWP project targetin 10240 ( this is not mandatory , it 's broken in all builds ) Install System.Memory from nuget packages ( click include prerelease ) Copy paste this code in to MainPage.csCopy paste this to MainPage.xamlSwitch from ... | Span < T > and friends not working in .NET Native UWP app |
C_sharp : I have just updated to the latest version of Xamarin studio , however when I try to build my solution using XBuild , through our continuous integration server it now generates the IPA file in a data time folder , ( within the usual bin\iphone\Ad-hoc folders ) e.g . : however I do not understand why it now doe... | Xamarin cycle 7 IOS IPA output now in a datetime folder |
C_sharp : Lately , I 've been working on enabling more of the Visual Studio code analysis rules in my projects . However , I keep bumping into rule CA2227 : `` Collection properties should be read only '' .Say I have a model class like this : And I have a strongly-mapped view page : With ASP.NET MVC , I can write an ac... | CA2227 and ASP.NET Model Binding |
C_sharp : In answering a question about double [ , ] , I added a screenshot of LINQPad 's output for that data structure : However , I got to wondering what a double [ , , ] looks like , and LINQPad wo n't visualize it for me . Additionally , I do n't understand the format of the data which goes into it : Can anyone vi... | What does double [ , , ] represent ? |
C_sharp : How come the conditional operator ( ? : ) does n't work when used with two types that inherit from a single base type ? The example I have is : Where the long form works fine : Both return types , RedirectToRouteResult and RedirectResult , inherit from ActionResult . <code> ActionResult foo = ( someCondition ... | Conditional operator does n't work with two types that inherit the same base type |
C_sharp : I have been learning about locking on threads and I have not found an explanation for why creating a typical System.Object , locking it and carrying out whatever actions are required during the lock provides the thread safety ? ExampleAt first I thought that it was just being used as a place holder in example... | Why magic does an locking an instance of System.Object allow differently than locking a specific instance type ? |
C_sharp : Could you please explain the meaning of underscore ( _ ) in the WaitCallBack constructor ? <code> ThreadPool.QueueUserWorkItem ( new WaitCallback ( ( _ ) = > { MyMethod ( param1 , Param2 ) ; } ) , null ) ; | Meaning of the underscore in WaitCallback |
C_sharp : I 'm working on an ASP.NET MVC 4.5 application . I need to populate a list in a dropdown . I t works fine , anyhow , when I click the field there is allways a server request.I 'd like to store the values after the initial load on the client side to speed up the application.I 'm using a ViewModel to populate t... | using c # linq to populate/load a list one time to enhance performance |
C_sharp : I am using Entity Framework Core 2.2 with NetTopologySuite 1.15.1 and SQL Server 2016 . Having a column of type IPoint works great to the point I want to create an index on it.I have this tableAnd EF core handles it well while generating a migration thus producing the following code : However , as soon as I t... | Is there a way to declare a Spatial Index with EntityFrameworkCore 2.2 ? |
C_sharp : Assuming I have an instance of an object that I know belongs to a subclass of a certain subtype passed to me through a reference of a supertype in C # , I 'm used to seeing typecasting done this Java-like way ( Assuming `` reference '' is of the supertype ) : But recently I 've come across examples of what ap... | C # : Any difference whatsoever between `` ( subtype ) data '' and `` data as subtype '' typecasting ? |
C_sharp : I have 2 collections of 2 different types but have almost the same set of fields.in one function , I need to iterate through one of the collections depending on one condition.I want to write only one code block that will cover both cases.Example : I have the following code : Now : I want to simplify this code... | How to use the same foreach code for 2 collections ? |
C_sharp : I have a OData V4 over Asp.net WebApi ( OWIN ) .Everything works great , except when I try to query a 4-level $ expand.My query looks like : I do n't get any error , but the last expand is n't projected in my response.More info : I 've set the MaxExpandDepth to 10.All my Entities are EntitySets.I 'm using the... | Asp.net WebApi OData V4 problems with nested $ expands |
C_sharp : I wa n't to maintain a list of several BlockingCollectionsAnd the check in subthreads if any of the 'queues ' still have items pending : Is the usage of a List < T > in this case thread-safe if the number of items in the list do n't change after the initialisation ( the content of the blockinglists inside the... | Is a List < BlockingCollection < T > > Thread safe ? |
C_sharp : Java 8 has Supplier < T > for 0 parameter functions , Function < T , R > for 1 parameter functions , and BiFunction < T , U , R > for 2 parameter functions.What type represents a function or lambda expression that takes 3 parameters like inIn C # , Func < T , TResult > is overloaded for up to 16 parameters so... | In Java , what type represents a function or lambda expression that takes 3 parameters ? |
C_sharp : I suspect the short answer to this question is `` no '' but I 'm interested in the ability to detect the use of the dynamic keyword at runtime in C # 4.0 , specifically as a generic type parameter for a method.To give some background , we have a RestClient class in a library shared among a number of our proje... | Detecting use of `` dynamic '' keyword as a type parameter at runtime |
C_sharp : I find this issue very strange , possibly a XAML/Visual Studio bug . I am hoping someone else finds it less strange and has an explanation for why what I 'm doing is wrong , and/or a better work-around than just declaring the resources in a different order.I have this simple XAML : When I attempt to compile t... | XAML fails to compile , but without any error message , if user-defined object is first resource and followed immediately by x : Array resource |
C_sharp : In C # , there is not in-built notion of commutativity in the language . That is if I define a simple Vector class for instance : I will still need to define the symmetric operator + ( double d , Vector v ) or any expression of the form 2.1 * v will give a compilation error or fail at runtime in a dynamic sce... | Commutativity in operators |
C_sharp : I have read a few articles about how Span can be used to replace certain string operations . As such I have updated some code in my code base to use this new feature , however , to be able to use it in-place I then have to call .ToString ( ) . Does the .ToString ( ) effectively negate the benefit I get from u... | Using Span < T > as a replacement for Substring |
C_sharp : I downloaded the Stable release of Reactive Extensions v1.0 SP1 from this site http : //msdn.microsoft.com/en-us/data/gg577610 , and I am using it in a .Net Framework 3.5 environment ( Visual Studio 2008 ) I tried using Reactive Extensions in a project , and noticed it was very slow to start up . Going to Lin... | Why does Reactive Extensions send a HTTP GET to microsoft ON COMPILATION ? |
C_sharp : I have a .NET Core ( UWP solution ) application which has 3 different projects ( let 's call them A , B and C ) .A and B are Windows Runtime Components , and C is a simple Class Library.Projects A and B have a reference to the project C.I would like to access a class of the project C , whose the instance woul... | How to communicate across projects inside one .NET solution ? |
C_sharp : I have set a filter to work upon a specific folder and all pages inside it . I need to access database using a claim . The problem is that I can not seem to register my filter with DI on startup services cause it does not find the database connectionthe filter.the error is InvalidOperationException : No datab... | ASP .NET Core Inject Service in custom page filter |
C_sharp : There a section in my code where I need to invert a matrix . That can only reasonably be done on a square matrix , in this case a 3x3 square matrix . The tool I 'm using to invert the matrix kept saying that my array was n't a proper square.So I did a little test : First one comes up as `` 3 '' . Second one c... | Baffling Index-Out-Of-Bounds |
C_sharp : Here is a very basic example of method overloading , two methods with the same name but with different signatures : Now let 's say I define two generic interfaces , sharing the exact same name but with different number of type parameters , such as : Can I say this represents `` generic interface overloading '... | Generic interface overloading . Valid terminology ? |
C_sharp : I am building an application that uses quite a few commands , and they are cluttering up my viewmodel . MVVM is new to me , so sorry if this question is a bit stupid . Is there a way to reduce the clutter ? For example here you can see the a part of the clutter.. <code> private void InitializeCommands ( ) { L... | How can I avoid command clutter in the ViewModel ? |
C_sharp : Here 's an example of what I 'm talking about ... Me.MyValue gives a warning in VB.NET and ( the equivalent code gives ) an error in C # . Is there a particular reason for this ? I find it more intuitive/natural to access the shared function using 'Me.MyValue ' - but I avoid it to keep my warnings at 0.Did so... | Why Should n't You Access a Shared/static Member Through An Instance Variable ? |
C_sharp : I have a Text file which contains a repeated string called `` map '' for more than 800 now I would like to replace them with map to map0 , map1 , map2 , ... ..map800.I tried this way but it didnt work for me : Can you please let me know how I can do this ? <code> void Main ( ) { string text = File.ReadAllText... | Issue on Replacing Text with Index Value in C # |
C_sharp : In a C # 8 project , I am using nullable reference types and am getting an unexpected ( or at least , unexpected to me ) CS8629 warning , I 've decided to use GetValueOrDefault ( ) as a workaround , but I 'd like to know how to prove to the compiler that x.DataInt ca n't be null if singleContent is checked.No... | Nullable reference types unexpected CS8629 Nullable value type may be null with temporary variables |
C_sharp : Does there exist a method in C # to get the relative path given two absolute path inputs ? That is I would have two inputs ( with the first folder as the base ) such asandThen the output would be <code> c : \temp1\adam\ c : \temp1\jamie\ ..\jamie\ | Does there exist a method in C # to get the relative path given two absolute path inputs ? |
C_sharp : I am trying to run several tasks at the same time and I came across an issue I ca n't seem to be able to understand nor solve.I used to have a function like this : That I wanted to call in a for loop using Task.Run ( ) . However I could not find a way to send parameters to this Action < int , bool > and every... | Parameters in asynchronous lambdas |
C_sharp : I 've recently started creating a WPF application , and am just hoping that someone can confirm to me that I 'm building my overall system architecture properly , or correct me if I 'm heading off in the wrong direction somewhere . Especially since I 'm trying to do MVVM , there are a lot of layers involved ,... | MVVM design feels too unwieldy , am I doing it wrong ? |
C_sharp : When I have a BigInteger whose size exceeds 2 gigabits ( that 's ¼ gigabyte ; I found this threshold by trial and error ) , the logarithm method gives a wrong answer . This simple code illustrates : Of course we must have a positive log for a number exceeding 1 , a zero log for the number 1 , and a negative l... | Wrong logarithm of BigInteger when size of BigInteger exceeds ¼ gigabyte |
C_sharp : I have an xml of the following format : I 'd like to sort the list of customers based on their names , and return the document in the following format : I am using c # and currently xmldocument.thank you <code> < ? xml version= '' 1.0 '' encoding= '' utf-8 '' ? > < contactGrp name= '' People '' > < contactGrp... | sorting entire xdocument based on subnodes |
C_sharp : I have some fairly complex Entity Framework queries throughout my codebase and I decided to centralize the logic into the models . Basically , picture a bunch of controllers with large queries and lots of repeated code in their expression trees . So I took out parts of those expression trees and moved them to... | Logical Inverse of a Func < T , bool > |
C_sharp : We have a Teams bot that posts messages in MS Teams . The first activity of a new conversation is always an adaptive card and once in a while , we update that with a new card . This worked OK until I made a new Team with this bot.The update we are trying with UpdateActivityAsync , return NotFound.After some t... | Teams UpdateActivity events difference when you test in newly created teams |
C_sharp : What are the cons of some code like this : <code> public class Class1 { public object Property1 { set { // Check some invariant , and null // throw exceptions if not satisfied // do some more complex logic //return value } } } | Why is considered best practice to have no complex logic in class properties ? |
C_sharp : I 'm using a third party API dll , bloomberg SAPI for those who know / have access to it.Here 's my problem : All of the above is from the F12 / Go to definition / object browser in VS2010 . Now when i try and use this code : This does not compile ... standard compiler error - no definition / extension method... | How can a dispose method be hidden ? |
C_sharp : Is there any behavioural difference between : And : Both throw exceptions of null object , if s is null . The first example is more readable as it shows exactly where the error occurs ( the exception bit is right next to the line which will cause the exception ) .I have seen this coding style a lot on various... | throw new Exception vs Catch block |
C_sharp : I am having a very peculiar problem : the ToList ( ) extension method is failing to convert results to a list . here is my code , standard boilerplate linq query , I converted ToList ( ) twice for good measureyet the assets are still a list of System.Data.Entities.DynamicProxies ... .I 've never had this prob... | Linq ToList ( ) fails to trigger Immediate Execution |
C_sharp : I have a performance problem on certain computers with the following query : Apparently ToList ( ) can be quite slow in certain queries , but with what should I replace it ? <code> System.Diagnostics.EventLog log = new System.Diagnostics.EventLog ( `` Application '' ) ; var entries = log.Entries .Cast < Syste... | Optimizing a LINQ reading from System.Diagnostics.EventLog |
C_sharp : I am using LinqPad and in that I was looking at the IL code ( compiler optimization switched on ) generated for the following Interface & the class that implements the interface : IL Code : Surprisingly I do n't see any IL code for the interface . Is this because of the way LinqPad works or the C # compiler t... | IL Code of an interface |
C_sharp : I 'm currently working on a simple way to implement a intrusive tree structure in C # . As I 'm mainly a C++ programmer , I immediatly wanted to use CRTP . Here is my code : This works but ... I ca n't understand why I have to cast when calling a_node.SetParent ( ( T ) this ) , as I 'm using generic type rest... | C # - Intrusive tree structure , using CRTP |
C_sharp : I 'm learning for the Microsoft Exam 70-483 . In this exercise the correct answers are A and F. In my opinion E is correct too . I think E is fully equivalent to A + F. Is it true ? Question : You are creating a class named Employee . The class exposes a string property named EmployeeType . The following code... | In C # specify access modifier for a method is equivalent to get and set |
C_sharp : Is this thread safe ? Specifically , is it possible for the GetMyObject ( ) method to return null ? I understand it is possible for two threads to get a different instance of MyObject but I do n't care about that . I just want to make sure it is safe to assume GetMyObject ( ) will never return null . <code> c... | Is Object Assignment Thread Safe ? |
C_sharp : I have a simple Money type with an implicit cast from decimal : And I defined a Sum ( ) overload to operate on those values : What I did n't expect was for this extension method to interfere with the existing Sum ( ) extension methods : The error is `` Can not implicitly convert type 'Money ' to 'int ' . An e... | Unexpected effect of implicit cast on delegate type inference |
C_sharp : I decided to make the control and then reuse . as directives in angular.but only reached Ads.BoxPickerControl in xaml for exampleregister and call in content page and successfully caught target invocation exceptionWhat have I done wrong ? <code> namespace Chainhub.Forms.UI.Controls { public partial class BoxP... | How to make the components , followed by reuse in XAML ? |
C_sharp : I 've written a hosted Chrome Web App which authenticates the user with OAuth 2.0 using the Google APIs Client Library for .NET . Now I want to add payments to our application using the in-built Chrome Web Store Payments.Looking at the documentation it appears that I need an OpenID URL in order to check for p... | Can I use Chrome Web Store payments with OAuth 2.0 |
C_sharp : I often find myself writing a property that is evaluated lazily . Something like : It is not much code , but it does get repeated a lot if you have a lot of properties.I am thinking about defining a class called LazyProperty : This would enable me to initialize a field like this : And then the body of the pro... | Implementing a `` LazyProperty '' class - is this a good idea ? |
C_sharp : What does if ( ( a & b ) == b ) mean in the following code block ? Why is it not like this ? <code> if ( ( e.Modifiers & Keys.Shift ) == Keys.Shift ) { lbl.Text += `` \n '' + `` Shift was held down . `` ; } if ( e.Modifiers == Keys.Shift ) { lbl.Text += `` \n '' + `` Shift was held down . `` ; } | What does this statement mean in C # ? |
C_sharp : Here we have a Grid with a Button . When the user clicks the button , a method in a Utility class is executed which forces the application to receive a click on Grid . The code flow must stop here and not continue until the user has clicked on the Grid.I have had a similar question before here : Wait till use... | How to block code flow until an event is fired in C # |
C_sharp : I have a picture that I elaborate with my program to obtain a list of coordinates.Represented in the image there is a matrix.In an ideal test i would get only the sixteen central points of each square of the matrix.But in actual tests i take pretty much noise points.I want to use an algorithm to extrapolate f... | Recognize a Matrix in a group of points |
C_sharp : I want to calculate a unified diff comparing two documents . ( The diff is to go in an email , and Wikipedia says unified diff is the best plain text diff format . ) Team Foundation has a command line interface do that ( Example files at https : //gist.github.com/hickford/5656513 ) Brilliant , but I 'd rather... | How to use Team Foundation 's library to calculate unified diff ? |
C_sharp : I have just went through one of my projects and used a bunch of the new c # 6 features like the null propagation operator handler ? .Invoke ( null , e ) , which builds in Visual Studio . However , when I run my script to publish out the NuGet packages , I get compilation errors saying : It would appear NuGet ... | NuGet Pack -Build does not seem to understand c # 6.0 |
C_sharp : Maintenance EditAfter using this approach for a while I found myself only adding the exact same boilerplate code in every controller so I decided to do some reflection magic . In the meantime I ditched using MVC for my views - Razor is just so tedious and ugly - so I basically use my handlers as a JSON backen... | How to move validation handling from a controller action to a decorator |
C_sharp : The recent additions to C # 7 are great and now in the latest release we can pass ValueType ( struct ) instances to functions by-reference ( 'by-ref ' ) more efficiently by using the new in keyword.Using either in or ref in the method declaration means that you avoid the extra 'memory-blt ' copy of the entire... | C # 7 'in ' parameters allowed with operator overloading |
C_sharp : Is it bad to have expensive code at the start of an async method , before the first await is called ? Should this code be wrapped with a TaskEx.Run instead ? <code> public async Task Foo ( ) { // Do some initial expensive stuff . // ... // First call to an async method with await . await DoSomethingAsync ; } | Can async methods have expensive code before the first 'await ' ? |
C_sharp : i 'm not sure how the Windows kernel handles Thread timing ... i 'm speaking about DST and any other event that affects the time of day on Windows boxes.for example , Thread .Sleep will block a thread from zero to infinite milliseconds.if the kernel uses the same `` clock '' as that used for time of day , the... | Is .NET Thread.Sleep affected by DST ( or system time ) changes ? |
C_sharp : I looked around for this and could not find an answer . Say I have this code : T could be any class , even a Nullable < > . Does performing the check above cause boxing if T is a value type ? My understanding is that this is the same as calling ReferenceEquals which takes two object arguments , either of whic... | Does Performing a Null Check on a Generic Cause Boxing ? |
C_sharp : I 'm working on my first WinForms application ... I typically write web apps ... A strange thing is happening with my application today . If I run the application on my computer , or my co-worker runs it on his computer , my MessageBoxes are modal only to my application . This is the desired behavior . My use... | MessageBox is modal to the desktop |
C_sharp : I noticed that when I navigate to the same entity object via a different `` member path '' I get a different object . ( I 'm using change-tracking proxies , so I get a different change-tracking proxy object . ) Here is an example to show what I mean.Even though joesInfo1 & joesInfo2 refer to the same record i... | Entity Framework - Different proxy objects for the same entity . And Include behavior with multiple paths to same destination |
C_sharp : Consider the following code : This yields the following output : Exception received : A task was canceled.My question is simple : How do I get at the original InvalidOperationException ( `` TEST '' ) ; rather than a System.Threading.Tasks.TaskCanceledException ? Note that if you remove the .ContinueWith ( ) p... | How to get the original exception when using ContinueWith ( ) ? |
C_sharp : I am using EF and have a database table which has a number of date time fields which are populated as various operations are performed on the record.I am currently building a reporting system which involves filtering by these dates , but because the filters ( is this date within a range , etc ... ) have the s... | How to reuse a field filter in LINQ to Entities |
C_sharp : I 'm attempting to save an array of FileInfo and DirectoryInfo objects for use as a log file . The goal is to capture an image of a directory ( and subdirectories ) at a point in time for later comparison . I am currently using this class to store the info : I have tried XML and Binary serializing my class wi... | Saving FileSystemInfo Array to File |
C_sharp : I 'm perhaps being a bit lazy asking this here , but I 'm just getting started with LINQ and I have a function that I am sure can be turned into two LINQ queries ( or one nested query ) rather than a LINQ and a couple of foreach statements . Any LINQ gurus care to refactor this one for me as an example ? The ... | How can I combine this code into one or two LINQ queries ? |
C_sharp : as a small ( large ) hobby project I 've set out to make a ( very primitive ) ssh-2.0 client in C # .This is to explore and better understand DH and help flourish my encryption familiarities : ) As per RFC 4253 , I 've begun the initial connection like this : ( leaving out irrelevant presetting of vars etc . ... | primitive ssh connection ( lowlevel ) |
C_sharp : I have a class library with 2 public classes that inherit from an abstract class . On the abstract class I have a protected field that should only be accessible to the inherited classes . The type used for the field is that of an internal class.For example I have : Now I understand that this wo n't work becau... | Using an internal type used as protected field |
C_sharp : I need to export a collection of items in camel casing , for this I use a wrapper.The class itself : This serializes fine : The wrapper : This however capitalizes the wrapped Examples for some reason , I tried to override it with XmlElement but this does n't seem to have the desired effect : Who can tell me w... | XMLSerializer keeps capitalizing items in collection |
C_sharp : I have 3 classes that are essentially the same but do n't implement an interface because they all come from different web services . e.g.Service1.Object1Service2.Object1Service3.Object1They all have the same properties and I am writing some code to map them to each other using an intermediary object which imp... | C # Generics : Can I constrain to a set of classes that do n't implement an interface ? |
C_sharp : I have a method Parameters : But it returns me `` السبت , 30 ذو الحجة '' . October 1st is Saturday . Why it seems return me September 30 , Saturday ? Anything wrong at my side ? <code> DateToString ( DateTime datetime , string format , CultureInfo cultrueInfo ) { return datetime.ToString ( format , cultureInf... | What is expected datetime string for ar-sa culture ? |
C_sharp : I 'm calling out to a SOAP service which uses Windows authentication . This is my configuration : And I 'm setting up the credentials manually here , as the user is on a different domain : I 've noticed that every call I do through the client proxy is resulting in three trips : If this only happened on the fi... | Preventing negotiation handshake on subsequent service calls |
C_sharp : I ’ m creating a small application ( a phonebook ) , actually I already created it using ms access as a database , but now , I ’ m learning XML and planning to use it as a database for this app ( just for fun and educational purposes ) . Here ’ s the diagram in my access database.And I created two XML files w... | How to query this two XML files using C # ? |
C_sharp : I do n't understand why the following behaves the way it does at all . I do n't even know if it 's caused by hiding or something else.The questions are : Why does c.c ( ) produce System.String while c.b ( ) produces System.Int32 ? Why does d.d ( ) and d.b ( ) both produce System.String and not behave in exact... | typeof ( T ) within generic nested types |
C_sharp : All , I have a method that returns a List . This method is used to return the parameters of SQL StoredProcedures , Views and Functions depending on name . What I want to do is create a list of objects and return this list to the caller . The method is belowI clearly ca n't instantiate T via new and pass to th... | C # Generics Instantiation |
C_sharp : I have a set of data that contains a type , a date , and a value.I want to group by the type , and for each set of values in each group I want to pick the one with the newest date.Here is some code that works and gives the correct result , but I want to do it all in one linq query rather than in the iteration... | How do I order the elements in a group by linq query , and pick the first ? |
C_sharp : Imagine two bitmasks , I 'll just use 8 bits for simplicity : The 2nd , 4th , and 6th bits are both 1 . I want to pick one of those common `` on '' bits at random . But I want to do this in O ( 1 ) .The only way I 've found to do this so far is pick a random `` on '' bit in one , then check the other to see i... | Need a way to pick a common bit in two bitmasks at random |
C_sharp : I currently have a query which not takes a long time and sometimes crashes because of the amount of data in the database.Can someone notice anything i can do to help speed it up ? EDITIve cut the query down . But even this is performing now worse than before ? <code> public IList < Report > GetReport ( CmsEnt... | Speeding up a linq entitiy query |
C_sharp : How can I get class semantic model ( ITypeSymbol ) from ClassDeclarationSyntax in Roslyn ? From this syntax tree : it seems to me that the only point I can use is ClassDeclaration as tokens like IdentifierToken can not be passed to the GetSymbolInfo method . But when I writethe result is ... so no match . I w... | How to get class semantic model from class syntax tree ? |
C_sharp : I have used two project for my site . One for Mvc project and Api project.I have added below code in web.config file which is in Api project , Action method as below which is in Api project , and ajax call as below which is in Mvc project , But yet showing errors as below , OPTIONS http : //localhost:55016/ap... | Header ca n't pass in ajax using cross domain |
C_sharp : I 'm trying to position a rectangle in the center of a grid with a restricted height , like so : I 've expected it to look like that : But instead it looks like that : I know the my child rectangle is bigger and it is understandable that it clips , however , my ClipToBounds have no effect of anything . After ... | Centering a large rectangle inside a grid which dimensions are smaller ( and ClipToBounds does n't work ) |
C_sharp : This code resizes an image and saves it to disk.But if I want to use the graphics class to set the interpolation , how do I save it ? The graphics class has a save method , but it does n't take any parameters . How do I save it to disk like the bitmap ? Heres a modified code snippet : I just need to set the i... | How to save a bitmap after setting interpolation with graphics class |
C_sharp : I am looking at code that is essentially passing an id around , for example : But instead of using an int , it used a PersonId object.The PersonId object is just an int with some hand-cranked code to make it nullable . So was this created in old .NET when nullable ints were n't available or is there a higher ... | What benefit is there in wrapping a simple type in a class ? |
C_sharp : Consider this snippet of code : In the above code , I can not delete the `` else return ( false ) '' statement - the compiler warns that not all code paths return a value . But in the following code , which uses a lambda ... I do not have to have an `` else '' statement - there are no compiler warnings and th... | Why do lambdas in c # seem to handle boolean return values differently ? |
C_sharp : I wonder if there is a way , in C # , to have a type based on a primitive type , and duplicate it to use other primitives instead.I know it 's not very clear , I do n't really know how to explain this ( and english is not my mother-tongue , sorry for that ... ) , so I 'll try to explain it using pseudo-code.A... | Discussion on generic numeric type in C # |
C_sharp : I´m creating an application that converts text to Braille . Converting to Braille is not a problem , but I don´t know how to convert it back.Example 1 : Converting numbers to Braille Example 2 : Converting capitals to BrailleI have a problem converting Braille back to normal . I ca n't just convert every a to... | Replace numbers of char after a specific char |
C_sharp : Is it possible , without employing pinvoke , to restart a PC using .NET ? I kind of just repeated the title , but I 'm not too sure how to elaborate much further ! Edit : I should have mentioned that do n't want to use `` shutdown -r '' as a solution.I was really after a pure .NET way , something like : Envir... | Is it possible to restart a PC using `` pure '' .NET and *without* using p/invoke ? |
C_sharp : I am trying to design a browser that will fetch site updates programmatically . I am trying to do this with async/await methods but when I try and run the program it seems to just hang on response.Wait ( ) ; . not sure why or whats happening . browser class : :Also , for my intended purposes , is it ok to mak... | async httpclient operation |
C_sharp : What 's the best way to convert the quotient of two C # BigIntegers while retaining as much precision as possible ? My current solution is : I 'm guessing this is suboptimal . <code> Math.Exp ( BigInteger.Log ( dividend ) - BigInteger.Log ( divisor ) ) ; | Getting quotient of two BigIntegers as double |
C_sharp : When I debug/run , using IIS Express , and browse to http : //localhost:1234/People , IIS Express tries to browse the People directory instead of executing the People route , and I get a 403.14 HTTP error . So I disabled the StaticFile handler in the Web.config and refreshed . Now I get a 404.4 HTTP error : I... | ASP.NET MVC5 refuses to map a route which matches a physical path |
C_sharp : I have a List < someObject > and an extention method to someObject called Process.Consider the followingbut I wanted multiple Tasks to work on the same list , to avoid locking I cloned the list and divided it into 2 lists , then started 2 separate Tasks to process , the speed has almost doubled.I was wonderin... | Starting tasks in a dynamic way |
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