Will `params` in C# always cause a new array to be allocated on every call?
C#/.NET has variadic function parameters by passing an `Array` type by-reference (as opposed to C/C++ which just places all of the values directly on the stack, for better and for worse). In the C# w...
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- 30 Jan at 23:13
Process.Start in C# The system cannot find the file specified error
This is a silly and tricky issue that I am facing. The below code works well (it launches Calculator): ``` ProcessStartInfo psStartInfo = new ProcessStartInfo(); psStartInfo.FileName = @"c:\windows...
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- 30 Jul at 21:41
Selenium using Java - The path to the driver executable must be set by the webdriver.gecko.driver system property
I am trying to launch Mozilla but still I am getting this error: > Exception in thread "main" java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.dri...
chmod: changing permissions of ‘my_script.sh’: Operation not permitted
when I'm trying to make shell script that error is shown ,what i must do ?? ``` [rehamadel@localhost bin]$ sudo vi my_script.sh ``` `[sudo] password for rehamadel:` `[rehamadel@localhost bin]$ ls -...
The Include path expression must refer to a navigation property defined on the type.in eager loading
I try to include anonymous type like this : I want all `incomelist` attributes in addition to `CompanyTitle` ,`PeriodTypeName` ) ``` var incomeList = ctx.IncomeLists.Include(i => new ...
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- 30 Jul at 17:7
Access HTTP response as string in Go
I'd like to parse the response of a web request, but I'm getting trouble accessing it as string. ``` func main() { resp, err := http.Get("http://google.hu/") if err != nil { // handl...
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- 30 Jul at 11:58
Azure ASP .net WebApp The request timed out
I have deployed an ASP .net MVC web app to Azure App service. I do a GET request from my site to some controller method which gets data from DB(DbContext). Sometimes the process of getting data from...
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- 30 Jul at 11:16
Could not load file or assembly 'Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies
I have a WinJS project that is previously built on Windows 8.1 using VS 2013. Recently I upgraded this project to Universal Windows 10 by creating a blank Javascript Universal windows 10 project and...
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- 30 Jul at 07:49
Is ApiController deprecated in .NET Core
Is it true that "`ApiController` will get deprecated in .NET Core"? Asking since I'm planning to use it in new projects.
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- 16 Aug at 08:35
Is System.Collections a "namespace of the System namespace"?
Okay, so I've been reading a book on C# and .NET, and while learning about the DateTime structure and the following code: ``` DateTime dt = new DateTime(2015, 10, 17); ``` I asked myself "why didn'...
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- 1 Aug at 13:3
Require SSL Client Certificate only for specific routes or controllers
I have an ASP.NET MVC Core project using Kestrel as the server. It is both serving up user content (asp.net mvc) and hosts web API controllers that agents (software) communicate with. I have enabled H...
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- 10 Jun at 05:27
Why is EPPlus telling me that I "Can't set color when patterntype is not set" when I have set PatternType?
I've got this code to try to style a header row: ``` worksheet.Cells["A32:D32"].Style.Font.Name = "Georgia"; worksheet.Cells["A32:D32"].Style.Font.Bold = true; worksheet.Cells["A32:D32"]....
How to create custom authentication mechanism based on HTTP header?
I'm leaving old version of question on a bottom. I'd like to implement custom authentication for SignalR clients. In my case this is java clients (Android). Not web browsers. There is no Forms authen...
Windows Store app In-App purchase subscription model
[Quite some time ago](http://mspoweruser.com/signs-subscriptions-begin-show-windows-store/) Microsoft announced that a developer will be able to sell IAPs (In-App Purchases) as a auto renewable subscr...
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- 12 Dec at 07:57
Find element with selenium by display text
I am trying to hover over an element in a menu bar with selenium, but having difficulty locating the element. The element is displayed below : ``` <DIV onmouseover="function(blah blah);" class=mainIt...
Token based authentication in Web API without any user interface
I am developing a REST API in ASP.Net Web API. My API will be only accessible via non-browser based clients. I need to implement security for my API so I decided to go with Token based authentication....
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- 2 Nov at 07:50
Unauthorized exception, ServiceStack
I want to make servicestack services reachable only for authorized users. this is my register method `var authResponse = client.Post(new Authenticate { provider = CredentialsAuthProvider.Name, //= cre...
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- 29 Jul at 14:9
C# - transform an async task from one type to another
I'm used to working with the Scala programming language - using Scala I could map over futures, such as: ``` val response: Future[HttpResponse] = asyncHttpClient.GetRequest("www.google.com") val sta...
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- 29 Jul at 13:58
.NET core replacement for TcpClient
So in the old .NET you were able to initialize a new instance of the TcpClient class and connect to the specified port on the specified host using TcpClient(string, int). That no longer works for TcpC...
ServiceStack ServerEventsClient auto-reconnect
I am using the ServerEventsClient for server side events to clients. Currently if I shutdown the server the client doesn't automatically reconnect later when it is available again. How do I make it a...
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- 29 Jul at 11:40
Angular2 set value for formGroup
So I have a complex form for creating an entity and I want to use it for editing as well I am using new angular forms API. I structured the form exactly as the data I retrieve from the database so I w...
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- 29 Jul at 14:3
How to search for an element in a golang slice
I have a slice of structs. ``` type Config struct { Key string Value string } // I form a slice of the above struct var myconfig []Config // unmarshal a response body into the above slice ...
'g++' is not recognized as an internal or external command, operable program or batch file
``` #include<iostream> using namespace std; int main() { cout<<"hi"<<endl; return 0; } ``` I am using Sublime text 3, and I am getting this error: > error- 'g++' is not recognized as a...
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- 29 Jul at 07:27
TextFieldParser replacement in .net Core 1
In the past, for c# .net MVC projects, I used TextFieldParser from the Visual Basic Reference. Now with .Net Core 1 that no longer seems to be an option. At least I can't figure out how to add the v...
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- 21 Aug at 04:57
case_when in mutate pipe
It seems `dplyr::case_when` doesn't behave as other commands in a `dplyr::mutate` call. For instance: ``` library(dplyr) case_when(mtcars$carb <= 2 ~ "low", mtcars$carb > 2 ~ "high") %>% ...