Recent questions tagged C#

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I noticed that .NET has some funky/unintuitive behavior when it comes to decimals and trailing zeros. 0m == 0.000m ... Any ideas? Thanks a lot. 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 read a CSV file one line at a time and parse out keywords

I am new to C# and I have started using StreamReader. I am trying to read a file one line at a time and ... report request (check log for URL). 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# - Is it wrong to use braces for variable scope purposes?

I sometimes use braces to isolate a block of code to avoid using by mistake a variable later. For ... without violating StyleCop rules? 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# - What is the equivalent to System.nanoTime() in .NET?

The title is pretty much self-explanatory, I'm killing myself over this simplicity. Looked here, but it isn't much helpful. 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 get around the command line length limit?

I've been working on a small and simple program that I drop files onto and, based on certian rules, they ... there a way around this limitation? See Question&Answers more detail:os...

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

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591 views

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c# - Is it possible to remove an existing registration from Autofac container builder?

Something along those lines: builder.RegisterType<MyType>().As<IType>(); builder.RegisterType<MyType2>().As<IType>(); ... could help me a bit. 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# - Error deleting folder 'bin'. The system call level is not correct

What does this error mean and how do I solve it? visual studio 2010, windows 7, in case it matters. I tried ... it still won't delete. 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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c# - Bind the text of RichTextBox from Xaml

How to Bind the text of RichTextArea from xaml 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# - Initializing a 'var' to null

Is there any difference in runtime performance between the following variable initializations? var x = null as object; var ... object x = null; 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# - .net core : incomplete JSON response

I'm trying to build simple API for training, in my database I got users (firstname, lastname, email password, ... happen, if you have any idea See Question&Answers more detail:os...

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

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713 views

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c# - WCF Error : 'It is likely that certificate 'my cert' may not have a private key that is capable of key exchange

I have a WCF service I'm trying to host on our production web server (IIS6). I've set the web up and ... are set to 'Script and Executables'. See Question&Answers more detail:os...

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

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563 views

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c# - Xamarin.Forms 2.5.0 and Context

Today I updated to Xamarin.Forms 2.5.0 and saw, that I get the following warnings: From the Android sub- ... I replaced it with Device.UWP. See Question&Answers more detail:os...

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

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284 views

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c# - Replace multiple words in string

I have multiple words I want to replace with values, whats the best way to do this? Example: This is what I ... has to be a better way? 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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390 views

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c# - How to debug a Vsix project

I'm creating a custom test runner for my project. So I've created a test vsix project which can be registered ... knows how to really debug it? See Question&Answers more detail:os...

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

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357 views

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c# - Unity IoC does not inject dependency into Web API Controller

I'm very new to using Unity, but my problem is that whenever I call my web service, I get an ... controllerDescriptor, Type controllerType)"}} See Question&Answers more detail:os...

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

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397 views

1 answer

c# - How to find an average date/time in the array of DateTime values

If I have an array of DateTime values: List<DateTime> arrayDateTimes; What's the way to find the average DateTime ... 2003-May-21 18:00:00 See Question&Answers more detail:os...

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

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338 views

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c# - Can private setters be used in an entity model?

I'm just starting out with Entity Framework and I'm concerned about the ease with which a primary key can ... anything that really answers 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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380 views

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c# - How the Rightmost column of a DataGridView could fill the remaining part of the form?

I have a DataGridView with 5 columns, with dock = filled. I want the last (rightmost) column's width to fill ... maximized. How can I do that? See Question&Answers more detail:os...

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

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398 views

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c# - Handling Zip Files Without Third Party Lib in .NET 4.0?

There is a similar question for 3.5 here: Is there a built-in zip library in .NET 3.5? that speculated ... of things to include support 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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519 views

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c# - Why isn't my NotifyIcon showing up?

I'm trying to get a notifyIcon to show a BalloonTip, but it won't show up when I press the button ... and all help would be 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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476 views

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c# - Entity framework strings using greater than operator

How do I make this query work like it does in sql? In sql I can use < and > operators on strings. I've ... r.ExemptionCode == "724") select r 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# - access method 'System.Web.Http.HttpConfiguration.DefaultFormatters()' failed

I have problem with unit testing my WEB API controller, I'm using moq to mock up my repository, do the setup ... }; return fakePersons; } } } See Question&Answers more detail:os...

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

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484 views

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c# - SaveChanges vs. AcceptAllChanges in Entity Framework

What's the difference between, _context.SaveChanges and _context.AcceptAllChanges(), is the AcceptAllChanges() is sort ... 't use SaveChanges() See Question&Answers more detail:os...

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

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391 views

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c# - How to create a DbDataAdapter given a DbCommand or DbConnection?

I want to create a data access layer that works with any data provider. I know it's possible to create a DbCommand ... bug in ADO.NET or what? See Question&Answers more detail:os...

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

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272 views

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c# - Parsing a Date Like "Wednesday 13th January 2010" with .NET

How can I convert the following strings to a System.DateTime object? Wednesday 13th January 2010 Thursday ... nice regular expression below. See Question&Answers more detail:os...

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

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295 views

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c# - .NET Multiple Namespaces for single class

Is it possible to have a single class reside within two name-spaces and how can I do this? To clarify: We have ... would not want to 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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284 views

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c# - Is it necessary to deploy the XML file in a class library?

I have developed a lot of class library projects in VS 2012 to be used in Windows Forms and Web forms ... .xml as well. Regards Jaime See Question&Answers more detail:os...

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

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304 views

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c# - use the same lock object at two different code block?

Can I use the same lock object at two methods, accessed by two different threads? Goal is to make task1 and task2 ... lockObject) { // task2 } } See Question&Answers more detail:os...

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

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