Recent questions tagged C#

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c# - How to proportional resize image of any type in .NET?

Is possible to resize image proportionally in a way independent of the image type (bmp, jpg, png, etc)? I have this ... where to put 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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327 views

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c# - How to convert a data reader to dynamic query results

I have a View that typically gets query results from a WebMatrix Query (IEnumerable<dynamic> data type), and ... are necessary in my 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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171 views

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c# - Multithreaded caching in SQL CLR

Are there any multithreaded caching mechanisms that will work in a SQL CLR function without requiring the assembly to be ... else I can try? 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# - Improved IValueConverter -- MarkupExtension or DependencyObject?

I saw online 2 different approaches to enhancing an IValueConverter. One of them extended a ValueConverter from ... better than 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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210 views

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c# - How do you localize a database driven website

I've been playing with the .NET built in localization features and they seem to all rely on putting ... information into multiple languages. See Question&Answers more detail:os...

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

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560 views

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c# - Detect socket disconnect in WCF

We're building a WCF server (.NET 4.0). It will only use net.tcp transport. When a client closes ... the client disconnects gracefully, or not. 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# - What does the ProtoInclude attribute mean (in protobuf-net)

In the ProtoBuf-Net implementation, what does the ProtoInclude attribute mean, and what does it do? An example ... using the protogen tool? 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 dependency properties in WPF has to be Static

Why a dependency property has to be Static? I have seen that it has been already asked in some post here, ... with a small snippet too. 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# - System.Data.Entity.Spatial replacement in ASP.NET Core

I am trying to migrate a webform from ASP.NET MVC to ASP.NET Core MVC. Currently I am trying to find a way ... to get used to the system 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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c# - How do I detect a Lock This Computer command from a WPF application?

Would prefer an answer in C#, .Net 3.5 using WPF (Windows Forms also okay) I have an application that is ... on Lock. Thanks for any assistance. See Question&Answers more detail:os...

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

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929 views

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c# - Is there a way to use the Task Parallel Library(TPL) with SQLDataReader?

I like the simplicity of the Parallel.For and Parallel.ForEach extension methods in the TPL. I was wondering if ... something with Reader } } } See Question&Answers more detail:os...

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

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326 views

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c# - Role based security asp.net mvc

I'm interested in knowing what are the best practices for using role based security in MVC: how to secure ... accessible by specific roles 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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217 views

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c# - Converting ordinary Http Post web request with Async and Await

How I can convert my traditional HttpWebRequest "POST" call with Async / Await pattern, Here with this I am ... ; ErrorCallback(we); } } See Question&Answers more detail:os...

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

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569 views

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c# - Reading XML using XDocument & Linq - check if element is NULL?

I'm using LINQ together with XDocument to read a XML File. This is the code: XDocument xml = XDocument.Load( ... I can prevent it from crashing? See Question&Answers more detail:os...

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

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201 views

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c# - Windows Service vs Windows Application - Best Practice

When should I go for a Windows Service and when should I go for a "Background Application" that runs in the ... of running as a service? 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# - Explicitly use a Func<Task> for asynchronous lambda function when Action overload is available

Reading over this blog post on some of the gotchas of C#5's async/await. It mentions in Gotcha #4 something that ... compiled as a Func<Task>? See Question&Answers more detail:os...

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

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141 views

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c# - Can I just use Office Web Apps Server

I am trying to have a document management system in browser with office. I have found this solution http:// ... for my own document system See Question&Answers more detail:os...

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

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177 views

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c# - OAuthWebSecurity with Facebook not using email permission as expected

Using the new OAuthWebSecurity for authenticating with Facebook, I added the email permission on my ... external login. 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

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c# - Consuming a REST XML web service

I'm trying to consume the following web service http://ipinfodb.com/ip_location_api.php this web service returns an xml ... 100</Ip> </Response> See Question&Answers more detail:os...

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

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184 views

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c# - Convert audio to text

I just want to know if there is any build in libraries or external libraries in Java or C# that allow me to ... know from where I can start. 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

1 answer

c# - Building an assembler

I need to build an assembler for a CPU architecture that I've built. The architecture is similar to MIPS, but ... if you need more information. See Question&Answers more detail:os...

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

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289 views

1 answer

c# - How can I reuse a DropDownList in several views with .NET MVC

Several views from my project have the same dropdownlist... So, in the ViewModel from that view I have : public ... best way to do that? 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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267 views

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c# 3.0 - How can I hierarchically group data using LINQ?

I have some data that has various attributes and I want to hierarchically group that data. For example: public class ... , but my brain hurts. See Question&Answers more detail:os...

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

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189 views

1 answer

c# - Auto-scrolling text box uses more memory than expected

I have an application that logs messages to the screen using a TextBox. The update function uses some Win32 ... be in un-managed memory. 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

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c# - How to sign installation files of a Visual Studio .msi

I recently purchased an authenticode certificate from globalsign and am having problems signing my files for deployment ... the client machine? 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

1 answer

c# - Display HTML on a winform

I'm developing a win-form application that needs sometime to show a "pop-up" form that displays a portion of ... . Any suggestions? thanks a lot 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

1 answer

c# - How to write OAuth2 Web API Client in Asp.net MVC

We have developed a set of Web APIs (REST) which are protected by an Authorization server. The Authorization server has issued ... } } }); } } See Question&Answers more detail:os...

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

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246 views

1 answer

c# - asp.net core defaultProxy

In net 4.5 we are working with proxy like this: <system.net>  <defaultProxy enabled=" ... really appreciate your help Thanks, Regards See Question&Answers more detail:os...

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

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