Recent questions tagged C#

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c# - WebApi v2 ExceptionHandler not called

How comes that a custom ExceptionHandler is never called and instead a standard response (not the one I want) is ... idea how to fix 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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183 views

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c# - How to disable all whitespace autoformatting in Visual Studio 2015?

I really like the new Visual Studio 2015, but the auto formatting is a bit too much extensive for my ... ignore-space-for-all-format-options See Question&Answers more detail:os...

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

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309 views

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c# - Send mail using localhost SMTP

I am trying to setup SMTP server on IIS for sending mails. The SMTP server is intended to be used ... simple SMTP virtual server configuration. See Question&Answers more detail:os...

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

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412 views

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c# - ClickOnce - Cannot publish because a project failed to build

When I try to publish my (WPF, C#) application, I get these errors: Cannot publish because a project failed ... build, rebuild, clean solution. See Question&Answers more detail:os...

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

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232 views

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c# - How to determine if a File Matches a File Mask?

I need to decide whether file name fits to file mask. The file mask could contain * or ? characters. Is there ... ? anything simple here ??? } See Question&Answers more detail:os...

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

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156 views

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c# - Can a form tell if there are any modal windows open?

How, being inside the main form of my WinForm app can I tell if there are any modal windows/dialogs open that belong to the main 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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341 views

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c# - How to kill Thread on exit?

A button on the parent form is used to start the thread. If the parent form is closed in the development environment ... MyThread() { ... } See Question&Answers more detail:os...

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

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629 views

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c# - How to get Client IP address in ASP.NET Core 2.1

I'm working on ASP.Net Core 2.1 with Angular Template provided by Microsoft Visual Studio 2017. My Client App is ... in ASP.NET Core 2.1. 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# - how to remove carriage returns, newlines, spaces from a string

how do I remove the spaces, carriage returns from in between < and > **START BELOW THIS LINE*** </TestItem1Request ... > How do I do 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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297 views

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c# - Performance difference between Synchronous HTTP Handler and Asynchronous HTTP Handler

Is there a performance difference between Synchronous HTTP Handler and Asynchronous HTTP Handler? IHttpHandler vs ... are the benefits? See Question&Answers more detail:os...

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

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575 views

1 answer

c# - What purposes should I use class StringContent for?

There is StringContent class in System.Net.Http namespace. What purposes should I use class StringContent for? See Question&Answers more detail:os...

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

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253 views

1 answer

c# - How to properly make asynchronous / parallel database calls

I'm looking for the proper way to handle multiple database calls that would likely benefit from running ... unlearn the wrong way. See Question&Answers more detail:os...

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

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456 views

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c# - PixelFormat.Format32bppArgb seems to have wrong byte order

I try to get all byte values from a Bitmap(System.Drawing.Bitmap). Therefore I lock the bytes and copy them: public ... ="D:/tmp/test2.png"/> See Question&Answers more detail:os...

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

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221 views

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c# - Why are assignment operators (=) invalid in a foreach loop?

Why are assignment operators (=) invalid in a foreach loop? I'm using C#, but I would assume that the ... a 'foreach iteration variable'." 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

1 answer

c# - How to prevent Debug.Assert(...) to show a modal dialog

I have a couple of libraries which use Debug.Assert(...). I think that the Debug.Assert(...) are fine ... as the Ignore button). 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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361 views

1 answer

c# - What is the best way to store a money value in the database?

I need to store a couple of money related fields in the database but I'm not sure which data type to use between money and decimal. See Question&Answers more detail:os...

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

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509 views

1 answer

c# - X509Certificate.CreateFromCertFile - the specified network password is not correct

I have a .NET application that I want to use as a client to call an SSL SOAP web service. I have been ... network password is not correct" ? See Question&Answers more detail:os...

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

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204 views

1 answer

c# - Where can I log an ASP.NET Core app's start/stop/error events?

In old ASP.NET, in the Global.asax.cs class, I would log when the app starts, stops and throws unhandled ... app's start/stop/error events? See Question&Answers more detail:os...

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

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333 views

1 answer

c# - Identityserver 4 and Azure AD

I'm looking into using Identity Server 4 for authentication within a C# based MVC application. I'd like to use ... it with Identity Server 4? See Question&Answers more detail:os...

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

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172 views

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c# - How to convert an XmlDocument to an array<byte>?

I constructed an XmlDocument and now I want to convert it to an array. How can this be done? 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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269 views

1 answer

c# - How to do a SQL "Where Exists" in LINQ to Entities?

I really want to do something like this: Select * from A join B on A.key = B.key join C on B.key ... equal to anything including itself (in SQL) See Question&Answers more detail:os...

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

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218 views

1 answer

c# - Change default format for DateTime parsing in ASP.NET Core

I get a Date in an ASP.NET Core Controller like this: public class MyController:Controller{ public IActionResult Test( ... 2016 return Ok(); } 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

1 answer

c# - Does the .NET garbage collector perform predictive analysis of code?

OK, I realize that question might seem weird, but I just noticed something that really puzzled me... Have a ... ? What's happening exactly ? See Question&Answers more detail:os...

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

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154 views

1 answer

c# - .Net whole application as a single .exe file?

I have developed some software with no database. I want to create a .exe of my .Net project so I can ... anybody have guidance for this problem? See Question&Answers more detail:os...

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

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1.2k views

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c# - How to create a valid, self-signed X509Certificate2 programmatically, not loading from file in .NET Core

What I currently do is that I use OpenSSL to generate PFX file. This is causing an unwanted dependency, especially ... is .NET Core compatible. See Question&Answers more detail:os...

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

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401 views

1 answer

c# - Why is my multi-threading slower than my single threading?

I know a couple of people asked a question similar to this, but I can't find any response that would make me ... ? Or it normal that is slower? See Question&Answers more detail:os...

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

0 votes

290 views

1 answer

c# - Re-sort WPF DataGrid after bounded Data has changed

I am looking for a way to re-sort my DataGrid when the underlying data has changed. (The setting is quite ... with the mouse) 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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317 views

1 answer

c# - How to Specify Entity Framework Core Table Mapping?

I've made a simple Entity Framework ASP Core Application that works but I do not know why: I've made a ... map to a POCO property PasswordHash See Question&Answers more detail:os...

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

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