Recent questions tagged C#

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c# - ASP.Net : DataPager Control always a step behind with paging

Take the following example...a page with a ListView and a DataPager used for paging the data of the ListView ... the paging working as expected? 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 assign click event

I have an array of button which is dynamically generated at run time. I have the function for button click in my ... btn.???? = "btn1_Click"; See Question&Answers more detail:os...

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

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291 views

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c# - Accessing Textboxes in Repeater Control

All the ways I can think to do this seem very hackish. What is the right way to do this, or at least most ... //do something with val } } } See Question&Answers more detail:os...

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

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556 views

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c# - ASP.NET Core: [FromQuery] usage and URL format

I am trying to use [FromQuery] in my web api and I am not sure how to use it. Here's the ... is not correct. Any suggestions? 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# - NETSDK1061: The project was restored using Microsoft.NETCore.App version 1.0.0, but with current settings, version 2.0.9 would be used instead

I'm developing a mobile app and using MS App Center for CI. Yesterday the Unit Test project failed to build ... issue before on App Center? 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# - Convert.ToBoolean fails with "0" value

I'm trying to convert the value "0" ( System.String ) to its Boolean representation, like: var myValue = Convert. ... a value type, isn't 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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c# - Dependency injection not working with Owin self-hosted Web Api 2 and Autofac

I'm finding my feet with Web Api 2, Owin and Autofac and need some guidance, please. Overview I have an Owin self- ... ); return Ok(valid); } } 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 remove x-powered-by header in .net core 2.0

I tried to use this middleware: public class SecurityHeadersMiddleware { private readonly RequestDelegate next; public ... says asp.net 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 there a SortedList<T> class in .NET?

I need to sort some objects according to their contents (in fact according to one of their properties, which ... I missing something obvious ? 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# - Override Property with different compatible Type

I need a base class with a property where I can derive classes with the same property but different (compatible) types. ... argument //... } } 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 the type of a MemberInfo with reflection

I'm using reflection to load a treeview with the class structure of a project. Each of the members in a ... round in circles at the minute. See Question&Answers more detail:os...

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

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997 views

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c# - Parallel.Invoke does not wait for async methods to complete

I have an application that pulls a fair amount of data from different sources. A local database, a networked database ... the .NET 4.5 features. See Question&Answers more detail:os...

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

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209 views

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c# - How to add js and css files in ASP.net Core?

I've been assigned to migrate an application from MVC into ASP.net Core, I'm new to ASP.net Core. In MVC ... inside wwwroot/js and wwwroot/css? See Question&Answers more detail:os...

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

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622 views

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c# - What is the KeyCode for ","(comma) and "."(dot) in .NET?

In my KeyDown EventHandler I need to know what is the KeyCode for "," and ".". I can't find them thats why I ask. 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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875 views

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c# - Overriding ToString() of List<MyClass>

I have a class MyClass, and I would like to override the method ToString() of instances of List: class ... an extension method)? 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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279 views

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c# - How to Return Generic Dictionary in a WebService

I want a Web Service in C# that returns a Dictionary, according to a search: Dictionary<int, string> ... not involving return a DataTable? See Question&Answers more detail:os...

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

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556 views

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c# - WPF Listbox auto scroll while dragging

I have a WPF app that has a ListBox. The drag mechanism is already implemented, but when the list is too ... I make the ListBox auto scroll? See Question&Answers more detail:os...

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

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436 views

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c# - Cache-Control Headers in ASP.NET

I am trying to set the cache-control headers for a web application (and it appears that I'm able to do it), ... place to put this code? 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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230 views

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c# - How do you extract classes' source code from a dll file?

Is there any software to do this? I didn't find any useful information on the internet so I am asking 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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363 views

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c# - Select records that does not exist in another table in Entity Framework

I have two tables - "Customer" table and "Blacklist" customer table. When I blacklist a customer, I put the customerid as ... --------- (CusId) See Question&Answers more detail:os...

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

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323 views

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c# - How do you access application variables in asp.net mvc 3 razor views?

I set a Application variable in my global.asa.cs with: protected void Application_Start() { ... // load all ... what is the proper syntax? See Question&Answers more detail:os...

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

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199 views

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c# - how to show publish version in a textbox?

At the moment I am manually updating the version field (textbox) in my application every time I publish it. I ... am talking about. NEW IMAGE: See Question&Answers more detail:os...

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

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509 views

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c# - Stream.Length throws NotSupportedException

I am getting a error when attempting stream.Length on a Stream object sent into my WCF method. Unhandled ... the stream? any examples? See Question&Answers more detail:os...

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

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206 views

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c# - How to anchor controls in WPF?

I have a a TreeView that fills the top part of the application, but since the number of items in the ... distance from the right bottom edge. See Question&Answers more detail:os...

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

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1.3k views

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c# - Object synchronization method was called from an unsynchronized block of code. Exception on Mutex.Release()

I have found different articles about this exception but none of them was my case. Here is the source code: ... . What is 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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379 views

1 answer

c# - TimeoutException: The Angular CLI process did not start listening for requests within the timeout period of 0 seconds

I'm getting this error after upgrading to angular 9. I'm using visual studio 2019, ASP .NET core with angular. Even if I ... "~5.20.0" } } ``` See Question&Answers more detail:os...

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

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211 views

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c# - Detecting if a program was run by Visual Studio, as opposed to run from Windows Explorer

Is there a way to detect if your program was loaded through Visual Studio vs. whether it was started as a standalone ... using VS2003/.NET 1.1. See Question&Answers more detail:os...

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

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1.3k views

1 answer

c# - How does a Tuple serialize to and deserialize from JSON?

I am curious about how the Tuple<T1, T2, T3, ...> serializes and deserializes. I searched using keywords "json" ... could not find what I want. See Question&Answers more detail:os...

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

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