Recent questions tagged c#

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c# - LINQ to XML - accessing descendants with a prefix

I have a sample xml file like this <vs:BioData> <vs:Name>Name</vs:Name> <vs:Address>address</vs: ... this would be greatly 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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c# - Run Oracle Client in 32-bit mode on a 64-bit machine

I have just moved from a 32-bit Windows 7 desktop to a 64-bit Windows 7 Laptop. We have a C# program that ... want to avoid having 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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485 views

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c# - Screen Resolution not matching Screen.Bounds

I am seeing an interesting difference between the resolution that is set through Control Panel and the output of ... resolution of each display. 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 access appsettings from another project

In the startup file I need a way to access IConfiguration in another project. I have been told the Business ... created in the same 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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c# - Cant get ASP.NET MVC 6 Controller to return JSON

I have an MVC 6 project in which i am using Fiddler to test out Web API. If i take the following ... object isnt serialized into json correctly? See Question&Answers more detail:os...

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

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395 views

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c# - How to update a div with Ajax.BeginForm AND execute a javascript function?

I am updating a div with a partial view by using something like this: <% using (Ajax.BeginForm("Action", ... got abandoned with no answer) 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 e.Handled = true not working?

I have following XAML <StackPanel MouseEnter="StackPanel_MouseEnter" Height="130" Background="Blue"> <Grid MouseEnter= ... from bubbling up? 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 would I use static methods for database access

So I came across this issues today and I couldn't find some meaningful explanation is there some non- ... my database related methods? 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# - Writing huge amounts of text to a textbox

I am writing a log of lots and lots of formatted text to a textbox in a .net windows form app. It is slow ... linked list string type I can use? 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 best way for wrapping synchronous code into asynchronous method

I am creating an application with using async-await methods. But There is a large problem for me with using them. ... . return resultList; }); } See Question&Answers more detail:os...

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

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275 views

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c# - Get cookies from httpwebrequest

I'm trying to get all cookies from a website using this code CookieContainer cookieJar = new CookieContainer(); ... getting a single of them. See Question&Answers more detail:os...

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

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440 views

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c# - .NET Custom Threadpool with separate instances

What is the most recommended .NET custom threadpool that can have separate instances i.e more than one threadpool per ... than 2-3) Thanks Roey See Question&Answers more detail:os...

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

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261 views

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c# - How can I get a list of tables in an Access (Jet) database?

I need to see if a table exists in an Access database used by my c# program. Is know there are SQL ... a command for Access/Jet databases? See Question&Answers more detail:os...

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

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360 views

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c# - Build project with Microsoft.Build API

I'm trying to build a project using the classes in Microsoft.Build. The code is: var project = new ProjectInstance( ... new[] {"Build"})); See Question&Answers more detail:os...

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

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231 views

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c# - Vertical text in datagridview

I want to show the text in the header cells in vertical orientation. How can I do it? 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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207 views

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c# - What Happens To a Query If It Times Out?

Let's say I have a query that is sent to my SQL-Server database, it takes more than 30 seconds, and my ... as soon as the exception is thrown? 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# - Using Fonts in System with iTextSharp

I want to use iTextSharp to write some text. I'm using this method: var font = BaseFont.CreateFont(BaseFont ... is not recognized by itextsharp See Question&Answers more detail:os...

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

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894 views

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c# - Binding WPF Datagrid cell background colour with trigger

I want the background colour of a WPF datagrid cell to change colour when the contents have been modified. ... of the current textblock only? 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# - Get all methods that are decorated with a specific attribute using T4/EnvDTE

I'd like to get a list of all public methods in my project that are decorated using MyAttribute using T4/EnvDTE. I ... [0] returned 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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545 views

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c# - Run Application_Start immediately when application pool restarts in IIS

We are doing some caching operations in the application_start phase in the application. So all the cache is going ... to solve 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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937 views

1 answer

c# - How should I register my mongodb service that uses the MongoClient, Singleton or scoped?

I am building an API with ASP.NET core using Mongodb and i have different services user service home ... <IPasswordHasher, PasswordHasher>(); See Question&Answers more detail:os...

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

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340 views

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c# - Entity Framework SaveChanges() not updating the database

var paymentAttempt = _auctionContext.PaymentAttempts.Where(o => o.Id == paymentAttemptId).SingleOrDefault(); if ( ... such error is happening. See Question&Answers more detail:os...

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

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344 views

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c# - What is the sum of the digits of the number 2^1000?

This is a problem from Project Euler, and this question includes some source code, so consider this your ... and all constructive criticisms. See Question&Answers more detail:os...

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

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510 views

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c# - What is the reason behind CS1998 "method lacks await operators"

The C# compiler generates a CS1998 warning when an async method lacks any await operators. What are the reasons behind ... to work around 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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253 views

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c# - Rx back off and retry

This is based on the code presented in this SO : Write an Rx "RetryAfter" extension method I am using the code ... light on why this might be? See Question&Answers more detail:os...

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

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477 views

1 answer

c# - Insert current datetime in Visual Studio Snippet

Does anyone know of a way that I can insert the current date & time in a visual studio 2008 snippet? What I want ... for my snippet... </Code> See Question&Answers more detail:os...

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

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354 views

1 answer

c# - The remote server returned an error: 227 Entering Passive Mode (500 oops vs_utility_recv_peek: no data)

I am having a problem connecting a Windows service to an FTP site. I inherited a Windows service from another ... but can from everywhere else? See Question&Answers more detail:os...

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

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427 views

1 answer

c# - Decryption Exception - length of the data to decrypt is invalid

I am working in a C# application. We have common methods to store data on a file. These methods encrypt the ... (cipher_Tx); return cipher; } See Question&Answers more detail:os...

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

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