Recent questions tagged C#

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c# - Are .Net's DateTime methods capable of recognising a Leap Second?

With a Leap Second on the horizon for June this year it got me wondering whether the .Net framework is leap ... it (Like Noda Time perhaps)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

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c# - Yield Return with Null

Is there any way to optionally return a null with a "return yield" driven iterator? I would like to return a ... break to end the iteration. } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Why do I get an CS1056 Unexpected character '' on this code

I'm getting this unexpected character '' error and I don't understand why. var list = new List<MyModel>( ... character '' on this line See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How do you get the Value of a property from PropertyInfo?

I've got an object that has a collection of properties. When I get the specific entity I can see the field ... get the value for this property? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to Unit Test with ActionResult<T>?

I have a xUnit test like: [Fact] public async void GetLocationsCountAsync_WhenCalled_ReturnsLocationsCount() { _locationsService ... unit test? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Why am I unable to select a custom Type for a setting from the same project/assembly as the settings file?

I am trying to set the type of an application setting property to a custom enum type I have defined in my ... ://tinypic.com/r/2ls8myb/7 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - 'HttpPostedFileBase' in Asp.Net Core 2.0

I'm recently working on a ReactJS app that's calling an API (developed with .NET Core 2.0). My question is ... content and save it in database. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to catch the event of the window close button(red X button on window right top corner) in wpf form?

How can I catch the event of the window close button(red X button on window right top corner) in a WPF form? ... close button of the WPF form. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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369 views

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c# - Default capacity of StringBuilder

What is the default capacity of a StringBuilder? And when should (or shouldn't) the default be used? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - WinForms: temporarily disable an event handler

How can I disable an event handler temporarily in WinForms? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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269 views

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c# - Determine if executing in finally block due to exception being thrown

Is it possible to determine if code is currently executing in the context of a finally handler as a result of an ... to know that it's possible. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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219 views

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c# - "Directory is not empty" error when trying to programmatically delete a folder

In my app, I have built a system where users can create picture galleries. Photos held in folders in ... \_admhadesPhotoGallery.aspx.vb:line 71 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - using a for loop to iterate through a dictionary

I generally use a foreach loop to iterate through Dictionary. Dictionary<string, string> dictSummary = new Dictionary<string, ... ; i--) { } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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797 views

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c# - The type or namespace name 'Reporting' does not exist in the namespace 'Microsoft'

I simply get the following error: The type or namespace name 'Reporting' does not exist in the namespace ' ... anyone help me with this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - 'Could not load type 'Microsoft.AspNetCore.Mvc.MvcJsonOptions' from assembly 'Microsoft.AspNetCore.Mvc.Formatters.Json, Version=3.0.0.0

I'm using netstandard2.1 library in my netcoreapp3.0 web application. When adding my service in Startup, I'm getting ... on how to solve this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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310 views

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c# - How to add literal strings in a DateTime format?

Is it possible to add the word "at" between a Date and Time format? I tried to add it just like this ... and no complex or concat functions. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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690 views

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c# - maxReceivedMessageSize and maxBufferSize in app.config

How to increase maxReceivedMessageSize and maxBufferSize parameters in app.config file to 2000000 before running the application. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

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c# - How to create exe of a console application

How can we create the exe for a console forms application ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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297 views

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c# - Self referencing loop in Json.Net JsonSerializer from custom JsonConverter (Web API)

The project is an Asp.Net Web API web service. I have a type hierarchy that I need to be able to ... same 'standard' serialization that works? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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488 views

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c# - Checking if Type or instance implements IEnumerable regardless of Type T

I'm doing a heavy bit of reflection in my current project, and I'm trying to provide a few helper methods ... point me in the right direction? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

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c# - App.Config vs. AppName.exe.Config

I'm building a Windows Service app that has configuration data stored in App.Config. However, I noticed that when ... app.config? Thanks - Randy See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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473 views

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c# - Cached Property: Easier way?

I have a object with properties that are expensive to compute, so they are only calculated on first access and ... something like that in C#? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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322 views

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c# - Does Array.ToArray<>() return the original array if it is the same type?

I deal with a framework on a daily basis where we sometimes provide methods that accept IEnumerable<MyBusinessObject> ... array, ready for use? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

1 answer

c# - 'Newtonsoft.Json...' exists in both 'BlendNewtonsoft.Json.dll' and 'Solutionpackages...

I'm not able to build the solution in Visual Studio 2013. This just happened after I updated my JSON.NET package to 6. ... 1 skipped ========== See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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220 views

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c# - How to avoid property recursion

This hit me recently on a project I was working on. Most people are familiar with property recursion: public int Test ... get a mix of styles. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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917 views

1 answer

c# - How to get an specific header value from the HttpResponseMessage

I'm making an HTTP call. My response contains a session code X-BB-SESSION in the header section of ... : xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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879 views

1 answer

c# - Moq - How to verify that a property value is set via the setter

Consider this class: public class Content { public virtual bool IsCheckedOut {get; private set;} public virtual ... clarify these concepts :) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

1 answer

c# - Convert an array to a HashSet<T> in .NET

How do I convert an array to a hash set ? string[] BlockedList = BlockList.Split(new char[] { ';' }, ... to convert this list to a hashset. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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