Recent questions tagged C#

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c# - How to validate JWT Token in aspnet.core web api?

I have created custom middleware class which validates the JWT token. I am calling this method before app.AddMvc() ... you please help me out? See Question&Answers more detail:os...

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

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413 views

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c# - How to measure performance of awaiting asynchronous operations?

I have a Windows Service that reads from multiple MessageQueue instances. Those messagequeues all run their own ... released thread to process. See Question&Answers more detail:os...

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

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473 views

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c# - Specified type member not supported in LINQ to Entities

I have an enum type called StatusTypes public enum StatusTypes { Open = 1, Allocated = 2, WorkInProgress = 3, ... List<HistoryItem>(); } } 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 get DB generated IDs back when using repository pattern?

In my solution I have a Domain project and a DataAccess project. My Domain project contains domain objects and ... up through the layers? See Question&Answers more detail:os...

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

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423 views

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c# - type xxxx not expected use xmlinclude or soapinclude

I have a curious case of this serialization issue - which has been asked many times on this site and I have ... - if that is significant? See Question&Answers more detail:os...

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

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854 views

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c# - How to make InvariantCulture recognize a comma as a decimal separator?

How do I parse 1,2 with Single.Parse? The reason of asking is because, when I am using CultureInfo. ... result, however I am 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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613 views

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c# - NullReferenceException with no stack trace when hooking SetConsoleCtrlHandler

Using code to hook the console close event from this thread, I sometimes get a NullReferenceException with no stacktrace ... is a lost battle. See Question&Answers more detail:os...

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

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582 views

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c# - Checkedlistbox Multicolumn

I have a CheckedListBox control in Windows Forms. I want to know who to add multi-columns to it. The MultiColumn ... correct way of doing 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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c# 7.0 - C# deconstruction and overloads

While investigating the new features in C# 7.x, I created the following class: using System; namespace ... clarification will be appreciated. See Question&Answers more detail:os...

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

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572 views

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c# - Proper way of using Newtonsoft Json ItemConverterType

I have some bad data coming back from a web service which I cannot change. The service returns a JSON list ... JobClass record inside the list. See Question&Answers more detail:os...

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

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469 views

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c# - Is there a way to do field order using the FileHelpers library?

I downloaded FileHelpers from nuget but I am not sure if this feature does not exist or if I don't have ... there seems to be another version See Question&Answers more detail:os...

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

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365 views

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c# - DataGridView virtual mode with a simple list as a source

Previously I asked a question about my dataGridView's performance due to it havign to display a large amount of rows ... tried to make it work. See Question&Answers more detail:os...

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

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698 views

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c# - How to use PEM certificate in Kestrel directly?

I want to use HTTPS in my ASP.Net Core 2.0 (with Kestrel web server) application. The official documentation uses ... C# code). Is is 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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436 views

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c# - Removing thin border around the menuitems

I based a custom menu on some code I once received. It looks OK, but I'm going crazy over how to ... /Setter> </Style> </ResourceDictionary> See Question&Answers more detail:os...

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

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774 views

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c# - Enabling mouse wheel zooming in a Microsoft Chart Control

how to enable zooming in Microsoft chart control by using Mouse wheel I have the below code, i need to know how to make ... ); } } catch { } } See Question&Answers more detail:os...

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

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735 views

1 answer

c# - WebAPI upload error. Expected end of MIME multipart stream. MIME multipart message is not complete

I've been following this tutorial to support file uploading as part of MVC4's WebAPI: http://blogs.msdn.com/ ... Am I missing anything 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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401 views

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c# - Creating an asp:Button programmatically?

I'm using my code-behind page to create a save button programmatically: Button btnSave = new Button(); btnSave.ID = ... the one I want to set. See Question&Answers more detail:os...

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

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442 views

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c# - Handle exceptions in entity framework 4

I need a way to distinguish between SQL exceptions using entity framework LINQ, for example how to distinguish ... or something like that. See Question&Answers more detail:os...

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

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541 views

1 answer

c# - How to find the row ID from datagridview, given a row value?

Can anyone help me please? I have to find the row number from 1 selected array which I stored in one separate array ... can I get the row ID? See Question&Answers more detail:os...

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

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413 views

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c# - Find a common string within a list of strings

I'm very close on this. I got a question posed to me yesterday by a developer if I could have a look ... string, return null or empty string. See Question&Answers more detail:os...

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

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493 views

1 answer

c# - What is the Resource Name for a Manifest Resource (Assembly.GetManifestResourceStream)?

I've embedded a resource (an XSD file) in my ASP.NET MVC application. Now, I'd like to retrieve this file from ... so, how do I set that name? 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# - Change slider bar color

It should be very easy to do this but I haven't found the information that I need. What I want is as simple ... want to make it a bit lighter. See Question&Answers more detail:os...

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

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408 views

1 answer

c# - Entity framework auto eager load

Is there a way to get entity objects to automatically pull all relevant data through the relationships instead ... the relevant collections. See Question&Answers more detail:os...

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

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723 views

1 answer

c# - Xamarin FindViewById returns null

I am trying to make an android app using Xamarin so C#. I made two layouts and in each one of them I ... object. Any advice or better idea? See Question&Answers more detail:os...

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

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570 views

1 answer

c# - Saving Panel as an Image

I'm doing this paint application. It's kind of simple. It consist of a panel where I will draw on and ... Image not what the panel contain. 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

1 answer

c# - Starting multiple async/await functions at once and handling them separately

How do you start multiple HttpClient.GetAsync() requests at once, and handle them each as soon as their ... .com/", HandleStackoverflow); See Question&Answers more detail:os...

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

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1.0k views

1 answer

c# - WPF how to wait for binding update to occur before processing more code?

As I understand it the dispatcher takes place in another thread, which takes care of updating data bindings, ... on other properties updating See Question&Answers more detail:os...

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

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661 views

1 answer

c# - HtmlAgilityPack and Authentication

I have a method to get ids and xpaths if given a particular url. How do I pass in the username and password ... aspx", @"C:localfile.html"); See Question&Answers more detail:os...

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

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