Recent questions tagged C#

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c# - How to correctly store connection strings in environment variables for retrieval by production ASP.Net Core MVC applications

I am working on an ASP.NET Core MVC application and I am having an issue with my connection strings. ... , would be greatly 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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c# - EF Core - Table '*.__EFMigrationsHistory' doesn't exist

I want to stress out that this is .NET Core and the threads about EF 6.0 does not apply to this ... "correct" way of enabling migrations. 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# - Recursion and the await / async Keywords

I have a fragile grasp of how the await keyword works, and I want to extend my understanding of it a bit. The ... objects on the heap?) 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# - Cannot implicitly convert type 'System.Linq.IQueryable' to 'System.Collections.Generic.IList'

I have a method: public DzieckoAndOpiekunCollection GetChildAndOpiekunByFirstnameLastname(string firstname, string lastname) { ... my 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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339 views

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c# - How to prevent firing CheckedChanged event when checking a control programmatically?

How do I prevent firing CheckedChanged event when checking a control programmatically? I usually do this the ... or more common 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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145 views

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c# - List<T> to T[] without copying

I'm have a large list of value types that needs to be given to OpenGL. It would be great if this could ... that will be added to the List. 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# - Understanding the MSTest TestContext

Using MSTest, I needed to obtain the name of the current test from within the [TestInitialize] method. You can ... best ignored and never 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# - GAC 32bit vs. 64bit

I've been searching for a while trying to understand this better, but am not finding any straight-forward ... (32bit & 64bit?) 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# - Get enum name when value is known

I have an enum that has different colors in it. I would like to pass some function an int and have it return the ... What's the way 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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c# - When #if DEBUG runs

I have this code in my C# class. #if DEBUG private const string BASE_URL = "http://www.a.com/"; ... other circumstances I forgot to mention? See Question&Answers more detail:os...

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

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673 views

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c# - The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly

Could someone please clarify something for me. In my ASP.NET MVC 2 app, I've got a BaseViewModel class which ... infer my model/property types? 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# - Binary String to Integer

I have a binary string, entered by the user, which I need to convert to an integer. At first, I naively ... ? try..catch Int32.TryParse 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# - How to ignore case in String.replace

string sentence = "We know it contains 'camel' word."; // Camel can be in different cases: string s1 = ... 't support ignoreCase on left 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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466 views

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c# - dotnet publish with /p:PublishProfile=?

I'm trying to call "dotnet publish" with a specific publish profile pubxml file as documented here : https ... would be greatly 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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387 views

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c# - ArgumentException or ArgumentNullException for string parameters?

Far as best practices are concerned, which is better: public void SomeMethod(string str) { if(string.IsNullOrEmpty(str)) ... to be made for #2. See Question&Answers more detail:os...

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

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151 views

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c# - String.Format for Hex

With below code, the colorsting always gives #DDDD. Green, Red and Space values int he How to fix this? string ... Blue, Green, Red, Space); 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

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c# - Apply a Regex on Stream?

I'm searching for fast and safe way to apply Regular Expressions on Streams. I found some examples over the ... and with full Regex support? 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# - Getting a delegate from methodinfo

I have a drop down list that is populated by inspecting a class's methods and including those that match a specific ... ; } } return function; } See Question&Answers more detail:os...

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

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256 views

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c# - Casting anonymous type to dynamic

I have a function that returns an anonymous type which I want to test in my MVC controller. public JsonResult Foo( ... ("More", more); } 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

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c# - Async OnActionExecuting in ASP.NET Core's ActionFilterAttribute

ASP.NET Core's ActionFilterAttribute has these: public virtual void OnActionExecuting(ActionExecutingContext context); public ... for 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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795 views

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c# - ILMerge DLL: Assembly not merged in correctly, still listed as an external reference

In the build process for a .NET C# tool, I have been using ILMerge to merge the assemblies into a single ... , or suggest a workaround please? See Question&Answers more detail:os...

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

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249 views

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c# - Auto-generation of .NET unit tests

Is there such a thing as unit test generation? If so... ...does it work well? ...What are the ... to replace all manually written unit testing? See Question&Answers more detail:os...

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

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171 views

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c# - Get record count in Azure DocumentDb

It seems like 'select count(*) from c' in the SQL queries allowed by documentdb in the azure site ... "Totals", MessageBoxButtons.OKCancel); 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# - How to test asp.net core built-in Ilogger

I want to verify some logs logged. I am using the asp.net core built-in ILogger, and inject it with the asp ... can I verify this logs logged? See Question&Answers more detail:os...

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

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194 views

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c# - How do I discover the quarter of a given date

The following are the Quarters for a financial year April to June - Q1 July to Sep - Q2 Oct to Dec - Q3 ... date I need the Quarter number. See Question&Answers more detail:os...

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

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350 views

1 answer

c# - List<T>.AsReadOnly() vs IReadOnlyCollection<T>

List<T> implements IReadOnlyCollection<T> interface and provides the AsReadOnly() method which returns ReadOnlyCollection ... is protected. See Question&Answers more detail:os...

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

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178 views

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c# - Convert result of matches from regex into list of string

How can I convert the list of match result from regex into List<string>? I have this function but it always ... result into List<string> dog cat See Question&Answers more detail:os...

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

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991 views

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c# - IQueryable<T> does not contain a definition for 'Include' and no extension method 'Include'

I'm trying to use Include extension on IQueryable set, but I have the following issue: Error 1 'System.Linq. ... .Web; using System.Web.Mvc; See Question&Answers more detail:os...

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

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