Recent questions tagged c#

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c# - How do I perform File.ReadAllLines on a file that is also open in Excel?

How do I read all lines of a text file that is also open in Excel into string[] without getting IO exception ... file with a .net StreamReader? 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# - Ignore bad certificate - .NET CORE

I'm writing a .NET Core app to poll a remote server and transfer data as it appears. This is working perfectly in ... to do this in .NET Core? 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# - The referenced component 'EntityFramework' could not be found.

So im downloading a project at home from work over team foundation server. I download the project and it ... installed nuget package. Thankyou 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 avoid "Sorry, my bot code is having an issue" in Microsoft Bot Framework

I have a bot that runs on Azure + Bot Framework + LUIS (via LuisDialog). If the user happens to send two ... to users, or catch the exception? 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# - ServiceStack default format

I would like to set ServiceStack's default format to JSON, as opposed to the HTML formatted response it ... these hints from the request? See Question&Answers more detail:os...

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

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247 views

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c# - Extract part of a string between point A and B

I am trying to extract something from an email. The general format of the email will always be: blablablablabllabla hello ... . What can I 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# - Get the App.Config of another Exe

I have an exe with an App.Config file. Now I want to create a wrapper dll around the exe in ... with accessing app.config properties. 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# - Error in update-database command in code first migration

I am working on Desktop application in WPF and creating SqlRepository with LocalDB to store data. I am ... Locating Server/Instance Specified) 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# - Call MessageBox from async thread with Form1 as parent

After clicking button1 placed on form1, program is checking if the new version is available (via internet), but ... with form1 as a parent? 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# - Namespaces for .NET JWT token validation: System vs. Microsoft

I am trying to use JWT to authenticate a Node application to an ASP.NET Web API. In ASP.NET, I am ... of a version mismatch somewhere 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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290 views

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c# - Making my console application invisible

I am developing a console application for my public library as a school project. The console application will ... from appearing? 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# - How to remove xmlns attribute of a node other than root in an XDocument?

Situation I'm using XDocument to try and remove an xmlns="" attribute on the first inner node: <Root xmlns=" ... but I get the same exception. 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# - Which is better for getting assembly location , GetAssembly().Location or GetExecutingAssembly().Location

Please suggest which is the best to getting executing assembly location. Assembly.GetAssembly(typeof(NUnitTestProject. ... () also? See Question&Answers more detail:os...

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

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250 views

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c# - Method overloading and inheritance

I have the following classes: public class BaseRepository { public virtual void Delete(int id) { Console.WriteLine ... object entity) will call? See Question&Answers more detail:os...

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

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391 views

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c# - Roslyn has no reference to System.Runtime

I'm working on a project where we are using Roslyn to compile some templates for us ... Microsoft.CodeAnalysis.AssemblyIdentity See Question&Answers more detail:os...

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

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647 views

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c# - How do I determine the Windows 'Download folder' path?

On my machine, it's here: string downloadsPath = Path.Combine( Environment.GetFolderPath(Environment.SpecialFolder. ... Server 2003 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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502 views

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c# - List<string> INotifyPropertyChanged event

I have a simple class with a string property and a List property and I have the INofityPropertyChanged event implemented, but ... "); } } } } See Question&Answers more detail:os...

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

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337 views

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c# - Why can't I declare an enum inheriting from Byte but I can from byte?

If I declare an enum like this ... public enum MyEnum : byte { Val1, Val2 } ... it's working. If I ... can't I use the second declaration ? See Question&Answers more detail:os...

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

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229 views

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c# - Any performance difference between int.Parse() and Convert.Toint()?

Is there any significant advantages for converting a string to an integer value between int.Parse() and Convert. ... this is different, right? See Question&Answers more detail:os...

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

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357 views

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c# - Why doesn't object have an overload that accepts IFormatProvider?

When converting for instance a decimal to a string, you use the CultureInfo.InvariantCulture and pass it as an ... this overload on 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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922 views

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c# - Could not load file or assembly 'System.Runtime.InteropServices.RuntimeInformation

I am getting this error whenever I try and run a webjob project with application insight and entity ... greatly appreciated Many 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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292 views

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c# - MVC5 Redirects to Login.aspx when using Windows Authentication

After upgrading from MVC 4 to MVC 5, my application (when started from within Visual Studio) gives the following error. It might ... " /> <add namespace="System.Web.Mvc.Ajax" /> &l...

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

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173 views

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c# - How do I make JSON.NET ignore object relationships?

I'm working on an Entity Framework project. I want to serialize a bunch of entity class instances. I've bound ... sort of thing pretty easily?? 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# - Nullable GUID

In my database, in one of the table I have a GUID column with allow nulls. I have a method with a Guid? ... System.Guid?' to 'System.Guid'." See Question&Answers more detail:os...

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

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315 views

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c# - How to handle CopyToDataTable() when no rows?

I have the code: dt = collListItems.GetDataTable().AsEnumerable() .Where(a => Convert.ToString(a["Expertise"]). ... is there a more elegant 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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243 views

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c# - Error: Inheritance security rules violated by type: 'System.Web.WebPages.Razor.WebPageRazorHost'

Out of nowhere my ASP.NET MVC 4 solution gives me this error: Inheritance security rules violated by ... Boolean& completedSynchronously) +155 See Question&Answers more detail:os...

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

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380 views

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c# - Optimizing Lookups: Dictionary key lookups vs. Array index lookups

I'm writing a 7 card poker hand evaluator as one of my pet projects. While trying to optimize its speed (I ... to ask another question about 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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396 views

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c# - how to add ellipse button and textbox in current cell of datagridview in winforms

i want to add an ellipse button and textbox control in current cell of my datagridview. By clicking on ... . Following is the screenshot. See Question&Answers more detail:os...

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

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