Recent questions tagged C#

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I have to build a C# program that makes CSV files and puts long numbers (as string in my program). ... formatted correctly. Thanks in advance. See Question&Answers more detail:os...

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

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208 views

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c# - Using "Match" in a Linq statement

I have a table that has two records (there will be many at runtime). The deviceId of the records are, DEVICE1 ... ); return devices.ToList(); } See Question&Answers more detail:os...

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

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864 views

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c# - Unknown Error (0x80005000) with LDAPS Connection

I've been stuck for the last couple of hours on an annoying Active Directory bit. What I'm trying to accomplish ... AD?) it returns the error. 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# - ReportingService2010 could not be found

I have: private readonly ReportingService2010 _rs = new ReportingService2010(); Error: The type or namespace name ' ... property does not exist. See Question&Answers more detail:os...

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

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553 views

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c# - Performance differences between P/Invoke and C++ Wrappers

In the process of learning P/Invoke, I asked this previous question: How to P/Invoke when pointers are ... myself, have better performance? See Question&Answers more detail:os...

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

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463 views

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c# - Why BackgroundWorker always is busy?

I realized something strange in my background worker in my WPF application. What I'm trying to accomplish right ... wait until the bw finishes? 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 compile simple dynamic code after migration on .netstandard 2.0 (CodeDom throws System.PlatformNotSupportedException)

Trying to compile this sample of code: var c = new CSharpCodeProvider(); var cp = new CompilerParameters(); var ... ideas? Thank you in advance! See Question&Answers more detail:os...

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

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197 views

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c# - Understanding the Open Closed Principle

I was refactoring some old code of a simple script file parser when I came across the following code: ... default-case. Any suggestions? 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# - Writing custom IEnumerator<T> with iterators

How can I write a custom IEnumerator<T> implementation which needs to maintain some state and still get to use iterator blocks ... >(); } ... } See Question&Answers more detail:os...

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

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220 views

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c# - Connecting ftp server with credentials

I'm writing a program that uses an ftp server with credentials. I'm trying to retrieve the directory list from ... Can anyone spot the 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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302 views

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c# - IDisposable Interface

I know about IDisposable Interface and it's use in .net but there is a question in my mind that If i am ... values, Does it make some sense? 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# - Dynamic list of checkboxes and model binding

I'm trying to create a view that contains a list of checkboxes that is dynamically created from a database, ... the controller after the post? See Question&Answers more detail:os...

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

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393 views

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c# - .NET: Do I need to keep a reference to WebClient while downloading asynchronously?

I use the following method in a piece of production code: private void DownloadData(Uri uri) { WebClient ... that makes any difference. See Question&Answers more detail:os...

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

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214 views

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c# - Extracting Property Names For Reflection, with Intellisense and Compile-Time Checking

Ok. So I have some code that maps certain controls on a winForm to certain properties in an object, in order to ... ; would be sweet! 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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152 views

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c# - How to retrieve all public methods from *.dll

I have *.dll written with C# and I need to get list of all public methods or classes contained in that * ... to do it programmatically with C#? See Question&Answers more detail:os...

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

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347 views

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c# - Try/Finally block vs calling dispose?

Is there any difference between these two code samples and if not, why does using exist? StreamWriter writer; ... just seems superfluous to me. See Question&Answers more detail:os...

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

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158 views

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c# - How to avoid using Enums?

Until asking a question on here I never considered (enums) to be a "bad thing." For those out there that consider ... = 2 Pending =3 end Enum See Question&Answers more detail:os...

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

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480 views

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c# - Using Microsoft.Build.Evaluation to publish a database project (.sqlproj)

I need to be able to publish an SSDT project programmatically. I am looking at using Microsoft.Build to do ... would be 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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245 views

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c# - Putting GridView data in a DataTable

I'm trying to save a GridView to a DataTable. I have code which should in theory do it but I keep getting this ... Any help on 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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458 views

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c# - Implementing nested generic Interfaces

I have the following Classes / Interfaces: // Model public class A : IA { } // ModelLogic public class B ... explain why this is not possible? See Question&Answers more detail:os...

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

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162 views

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c# - null objects vs. empty objects

[ This is a result of Best Practice: Should functions return null or an empty object? but I'm trying to be ... barking up the wrong tree 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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161 views

1 answer

c# - Apply Formula Cell to a DataGridview

I want to add formula cell in a DataGridView. Is there any custom DataGridView to do this? Example: grid[ ... ", columnAsString, grid.RowCount); See Question&Answers more detail:os...

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

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252 views

1 answer

c# - Anonymous methods and delegates

I try to understand why a BeginInvoke method won't accept an anonymous method. void bgWorker_ProgressChanged(object sender, ... , e); }); See Question&Answers more detail:os...

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

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257 views

1 answer

c# - How to use ServiceStack authentication correctly in ASP.Net MVC controller

I'm having problem with getting ServiceStack [Authentication] attribute to work in ASP.Net MVC4 controller, pages ... like: urn:iauthsession: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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740 views

1 answer

c# - How to convert a XPS file to an image in high quality (rather than blurry low resolution)?

I'm trying to convert an XPS with WPF. The idea is that these images can be loaded with silverlight 4, ... the image Please download test.xps 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# - Try-catch every line of code without individual try-catch blocks

I do not currently have this issue, but you never know, and thought experiments are always fun. Ignoring the ... attempt to tackle 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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256 views

1 answer

c# - How to get contact list from Exchange Server?

Can anyone tell me the simplest way to get a contact list from Exchange Server? I'm using C# From what ... Directory Services is not an option. See Question&Answers more detail:os...

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

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320 views

1 answer

c# - benefit of using new keyword in derived class member having same name with base class member

The C# language specification says that if I inherit a class, and the base class and derived class have the ... same named derived class member? See Question&Answers more detail:os...

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

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