Recent questions tagged C#

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c# - .OrderBy(DayOfWeek) to treat Sunday as the end of the week

I'm ordering a number of objects by their System.DayOfWeek property. DayOfWeek treats Sunday as the start of the week ... -> Sunday. Any ideas? See Question&Answers more detail:os...

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

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543 views

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c# - .NET SMTP Client - Client does not have permissions to send as this sender

I'm getting strange occurance on our servers when I am trying to send an email using SmtpClient class via an ... is returning an empty string. See Question&Answers more detail:os...

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

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487 views

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c# - How to correctly convert filesize in bytes into mega or gigabytes?

I'm using the DriveInfo class in my C# project to retrieve the available bytes on given drives. How to I ... shown in the Windows-Explorer. See Question&Answers more detail:os...

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

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659 views

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c# - How to prevent ListBox.SelectedIndexChanged event?

I am using a listbox in my C#2.0 windows forms application. The method to populate the list box is private ... is it from the MouseClick event? 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# - ASP.NET 5 An error occurred while starting the application

After publishing an ASP.NET Web App, I'm trying to host the website on my local server. However, when I start it ... 7, using ASP.NET 5 RC1. 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# - The request failed with HTTP status 417: Expectation Failed - Using Web Services

some minutes ago i was working on a project in visual studio 2010 and suddenly my pc was restarted. after ... about that? thanks in advance 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# - Possible to look for Key that does not exist in Json.net

I got a couple different formats that come in but I can't figure out how to handle them all because ... [] pParams, ScriptParam& pResult) 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# - Why does adding double.epsilon to a value result in the same value, perfectly equal?

I have a unit test, testing boundaries: [TestMethod] [ExpectedException(typeof(ArgumentOutOfRangeException))] public void ... does the job. 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# - FormsAuthentication.SetAuthCookie doesn't [Authorize] in MVC 5

I created a brand new ASP.NET MVC 5 project to test the [Authorize] attribute with FormsAuthentication. ... authentication, should 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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299 views

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c# - Difference between Type.IsGenericTypeDefinition and Type.ContainsGenericParameters

The System.Type type contains the properties IsGenericTypeDefinition and ContainsGenericParameters. After reading the MSDN ... the other. See Question&Answers more detail:os...

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

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367 views

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c# - How to format a number as percentage without the percentage sign?

How do I in .NET format a number as percentage without showing the percentage sign? If I have the number ... .CurrentCulture = new MyCulture(); See Question&Answers more detail:os...

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

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458 views

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c# - How can I assign a name to a task in TPL

I'm going to use lots of tasks running on my application. Each bunch of tasks is running for some reason. I would ... () { return TaskName; } } See Question&Answers more detail:os...

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

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494 views

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c# - Using Static Variables in Razor

Why is it not possible to use a static Variable from a static class inside a view? For example, lets say you have a ... Color</h1></div> </html> See Question&Answers more detail:os...

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

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366 views

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c# - How can I use CommandLine Arguments that is not recognized by TopShelf?

I want to pass some custom arguments to the console app when I install and start it as a Windows Service via ... I can consume their values? See Question&Answers more detail:os...

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

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243 views

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c# - Get only direct interface instead of all?

I have a class like the below. GetInterfaces() says If the current Type represents a type parameter in the definition of ... ABC : DEF {...} See Question&Answers more detail:os...

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

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245 views

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c# - Alternative to use HttpContext in System.Web for Owin

ASP.NET authentication is now based on OWIN middleware that can be used on any OWIN-based host. ASP.NET Identity ... which is not valid for me. See Question&Answers more detail:os...

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

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538 views

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c# - How to set Accept and Accept-Language header fields?

I can set Request.Content-Type = ... , Request.Content-Length = ... How to set Accept and Accept- ... ----21724139663430 Content-Length: 56048 See Question&Answers more detail:os...

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

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542 views

1 answer

c# - JSON.NET - Conditional Type Deserialization

I'm consuming some ARCGis web services, and they have some unfortunate JSON design. for example, they might give ... in the JSON above. thanks! See Question&Answers more detail:os...

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

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802 views

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c# - Including referenced project DLLs in nuget package [.Net Core RC3 *.csproj file]

I have a solution with two projects in it. First project is called Library1, which references project two called ... appreciated. Thanks! ;) See Question&Answers more detail:os...

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

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415 views

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c# - Do I have to include all System.Collections.Immutable dependencies?

I just switched from (an older) Microsoft.Bcl.Immutable NuGet package to System.Collections.Immutable and was ... to be loaded normally? See Question&Answers more detail:os...

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

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469 views

1 answer

c# - Does WebClient use KeepAlive?

I need to issue around 50 HTTP requests to a single host (API calls). Performance is important, so I'd like ... 's. Does WebClient support 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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444 views

1 answer

c# - Can EditorFor() be used to create <input type="file">?

Given this model, is it possible to use the Html.EditorFor() to render a file upload input element to the page? I ... model.FileName) %> </div> See Question&Answers more detail:os...

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

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245 views

1 answer

c# - How to restrict T to value types using a constraint?

I want to restrict the possible types N can take-on using a constraint. I wish to restrict N to be either a ... here } Any help appreciated... See Question&Answers more detail:os...

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

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266 views

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c# - Setting attributes of a property in partial classes

I have an employee class generated by Entity Framework (EF). public partial class employee { private string name; ... in the Name 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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460 views

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c# - Why doesn't Math.Round/Floor/Ceiling return long or int?

Every time I use Math.Round/Floor/Ceiling I always cast to int (or perhaps long if necessary). Why exactly ... 's always returning an integer. See Question&Answers more detail:os...

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

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572 views

1 answer

c# - How to get specific culture currency pattern

How do i get the currency pattern for a specific culture? For Example: Instead of using: string.Format("{0: ... the currency should be the same. See Question&Answers more detail:os...

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

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287 views

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c# - Comparing strings and get the first place where they vary from eachother

I want to get the first place where 2 string vary from each other. example: for these two strings: "AAAB" "AAAAC" I ... . How do i do it 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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431 views

1 answer

c# - Using SqlDependency vs. periodic polling of a table (performance impact)

In the beginning of our app's development, we were using SqlDependency quite heavily to cache DB ... performance issue with SqlDependency? See Question&Answers more detail:os...

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

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