Recent questions tagged C#

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c# - Confused with FromBody in ASP.NET Core

I have the following WEB API method, and have a SPA template with Angular: [HttpPost] public IActionResult Post ... used the default behavior? 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 is the XmlWriter always outputting utf-16 encoding?

I have this extension method public static string SerializeObject<T>(this T value) { var serializer = new XmlSerializer ... am I doing wrong? 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# - Setting anonymous type property name

Let's say I have the following piece of code: string SomeConst = "OtherName"; var persons = GetPersons(); // ... can I achieve such a behaviour? 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# - Show UTF-8 characters in console

How can I print UTF8 characters in the console? With Console.Writeline("???a?") I see ?asat in console. 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# - Should I manually dispose the socket after closing it?

Should I still call Dispose() on my socket after closing it? For example: mySocket.Shutdown(SocketShutdown ... all associated resources. See Question&Answers more detail:os...

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

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677 views

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c# - Hide parameterless constructor on struct

Is it possible to hide the parameterless constructor from a user in C#? I want to force them to always use the ... ? Is there a slicker 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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c# - Redirecting from cshtml page

I want to redirect to a different view depending on the result of a dataset, but I keep getting returned to the page ... "; } <h2>NoResults</h2> 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# - Use of Include with async await

I have an EF query in which I am returning an 'Item' by it's unique identifier. I'm using the scaffolded ... back the item's tags? Cheers Ben 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# - ntohs() and ntohl() equivalent?

Are there net to host conversion functions in C#? Googling and not finding much. :P 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# - Can't add keyValuePair directly to Dictionary

I wanted to add a KeyValuePair<T,U> to a Dictionary<T, U> and I couldn't. I have to pass the ... a possible reason for this apparent oversight? 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# - Fixing the 'Use of unassigned local variable' with a null assignment. Why?

With a piece of code like this, the compiler complains on c.MyProperty: MyClass c; try { throw new Exception(); ... to an instance of an object? 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# - Task.WhenAll result ordering

I understand from here that the task execution order for Task.Whenall is not deterministic but I cannot find any ... but I need a confirmation. 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 point of .NET 4.6's Task.CompletedTask?

This blog post mentions the new Task APIs, including a new Task.CompletedTask property introduced in .NET 4.6 ... , Task.FromResult(whatever)? 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 purpose of the extra braces in Switch case?

I'm curious about this thing... see example: switch(x) { case(a): { //do stuff } break; case(b): //do ... case a (with braces) and case b? 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# - Can There Be Private Extension Methods?

Let's say I have a need for a simple private helper method, and intuitively in the code it would make sense ... to choose one over 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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883 views

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c# - Excel date format using EPPlus

I'm having trouble with format my cells to Date. FileInfo info = new FileInfo(path); using (ExcelPackage package = ... Why is this not working? See Question&Answers more detail:os...

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

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240 views

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c# - How is transforming this iterator block a functional change?

Given the following code snippet: public class Foo { public IEnumerable<string> Sequence { get; set; } public ... about a similar situation. See Question&Answers more detail:os...

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

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294 views

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c# - Make using statement usable for multiple disposable objects

I have a bunch of text files in a folder, and all of them should have identical headers. In other words ... no disposables are left undisposed. 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# - NavmeshAgent player not parallel to slope of hill when moving over hill

NavmeshAgent player not parallel to slope of hill when moving over hill. On plane surface its going smoothly. See ... (target.position); } } 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# - Windows Form Application, Thread won't stop

I am using Windows Form application for my thread demo. When I click on button1 ,It will start the thread and ... me if I going wrong somewhere. See Question&Answers more detail:os...

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

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262 views

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c# - How To Use OleDb To Create Excel Database

My task is to take an Access Database and create an Excel file, but I can not seem to CREATE the Excel file that ... file so that I can use 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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327 views

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c# - From RichTextBox to text files, line after line

I have trouble with saving file from Richtextbox to text file. My richtextbox looks like this; ABC ... SDE ... saveFileDialog2.FileName, str); } See Question&Answers more detail:os...

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

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300 views

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c# - MySqlConnectionStringBuilder - Connect with Certificates

Iam trying to connect to Google Cloud Sql which is a MySql solution. I was able to connect using MySql ... provide the three certificate(s). See Question&Answers more detail:os...

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

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626 views

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c# - use of combobox ValueMember and DisplayMember

I have an excel file which has two columns (1. Name and 2. Value) which I want to bind to a ... DefaultView; comboBox1.DisplayMember = "name"; 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# - Visual studio update model from data base Issue

i was facing a issue while trying to add a new Store Procedure from database . update model from data base is ... config -l --show-origin" See Question&Answers more detail:os...

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

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264 views

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c# - Read excel columns as text

I want to read all columns as text values only from an excel file in a web application irrespective of the ... Any 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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593 views

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c# - How can I do this floating action button where can run even in background mode in Xamarin forms

Here's my sample: I need this to be a connection in other apps... Thank you! See Question&Answers more detail:os...

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

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349 views

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c# - Vertical scroll Scintilla Textbox during Text Changed event

Setting a Scintilla.Net textbox with a string and scrolling to last line doesn't work. This Q & A How make ... end line after setting the text? See Question&Answers more detail:os...

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

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