11,792 questions with Developer technologies | C# tags

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2 answers

When writing C# code in Visual Studio and in debug mode, the program cannot be launched.

Visual Studio 编辑C#代码,调试模式启动,无法启动程序。 输出列表中可以看到生成正常,手动点击生成的.exe可以正常运行。Windows事件查看器捕获到了应用程序崩溃事件。 尝试删除注册表、重装VS2019、VS2022、VS2016都没有解决这个问题。 完整代码复制到其他电脑可以正常执行debug调试。 此电脑运行其他c#程序无此异常提示。 日志名称: Application 来源: Application Error 日期: …

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-04-09T00:18:59.7733333+00:00
JJ Z 0 Reputation points
answered 2026-04-09T10:15:01.1266667+00:00
Lizzy Dinh (WICLOUD CORPORATION) 430 Reputation points Microsoft External Staff Moderator
2 answers

My Project is not creating an .exe file

My Project is not creating an .exe file in the Bin folder

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-04-08T09:45:57.34+00:00
Rodney Matthews 0 Reputation points
answered 2026-04-09T06:04:57.98+00:00
Nancy Vo (WICLOUD CORPORATION) 2,305 Reputation points Microsoft External Staff Moderator
2 answers

Assembly.cs missing

Why is the Assembly info missing in my project which is a net framework project

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-04-08T09:07:52.3866667+00:00
Rodney Matthews 0 Reputation points
commented 2026-04-08T13:17:02.46+00:00
Viorel 126.8K Reputation points
3 answers

SignalR Chat Issue: I’m currently building chat system using SignalR in ASP.NET Core (.NET 9) for communication between a user and an admin. user message should be received instantly by the admin via SignalR

this is my browser where i want to inspect the error from

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-30T10:58:27.9+00:00
bright owusu 0 Reputation points
commented 2026-04-07T10:44:12.53+00:00
Danny Nguyen (WICLOUD CORPORATION) 6,615 Reputation points Microsoft External Staff Moderator
2 answers

Exception from HRESULT: 0x8004A0E0

I am getting a System.Runtime.InteropServices.COMException (0x8004A0E0) in my C# Solid Edge automation. When this error occurs, the 3D model does not update correctly. Has anyone else faced this issue? I need help to solve it.

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-25T08:23:43.5833333+00:00
Sinduja 0 Reputation points
commented 2026-04-07T09:26:08.7133333+00:00
Taki Ly (WICLOUD CORPORATION) 615 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Best Practices for Video-to-Audio Conversion in Microsoft-Based Projects

I’m working on a project where I need to manage media content for offline access, especially converting video resources into audio format for learning purposes. While exploring solutions, I came across the trusted Yolk.fm video to audio downloader, which…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-27T13:26:33.5533333+00:00
Abdul Waheed 20 Reputation points
edited a comment 2026-04-07T04:44:04.79+00:00
Nancy Vo (WICLOUD CORPORATION) 2,305 Reputation points Microsoft External Staff Moderator
1 answer

How can I add a tab to file explorer from a c# program?

How can I add a tab to file explorer from a c# program?

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-04-06T16:51:21.62+00:00
Robert Dukelow 0 Reputation points
answered 2026-04-07T04:13:31.1033333+00:00
Lizzy Dinh (WICLOUD CORPORATION) 430 Reputation points Microsoft External Staff Moderator
3 answers

validation control

how to supress the errir message of the normal valudation controls and only show the error messages from the summary control? <%@ Page Language="C#"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" …

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-04-01T14:44:42.09+00:00
zal wel 20 Reputation points
commented 2026-04-06T10:00:19.5766667+00:00
Jack Dang (WICLOUD CORPORATION) 16,115 Reputation points Microsoft External Staff Moderator
1 answer

How can I optimize this ASP.NET Core + EF Core + PostgreSQL CRUD API?

Hi everyone, I've been building a REST API using ASP.NET Core with Entity Framework Core and Npgsql (PostgreSQL), and I'd love some feedback on how to optimize it. I'll share the full structure below — it's a fairly standard CRUD setup with two…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-31T21:52:35.2766667+00:00
Csaba Faragó 0 Reputation points
commented 2026-04-06T09:58:04.3566667+00:00
Jack Dang (WICLOUD CORPORATION) 16,115 Reputation points Microsoft External Staff Moderator
1 answer

ReportViewer winform Preview print win10 print content is not centered

I used ReportViewer to load the rdlc report and preview and print, but the contents did not display in the center when the resolution of win10 system was 125%, but the contents displayed in the center normally when I switched to the 100% resolution and…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2023-02-03T02:45:11.34+00:00
mengyuan bai 0 Reputation points
commented 2026-04-06T04:09:07.92+00:00
sor pisey 0 Reputation points
1 answer One of the answers was accepted by the question author.

Issue to add task code to the class

Hi, I want to add the task code like into the following. What to adjust?

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-04-04T07:13:54.2666667+00:00
Peter Liang 3,286 Reputation points
accepted 2026-04-04T14:38:32.9466667+00:00
Peter Liang 3,286 Reputation points
3 answers

Using visual studio code for WPF c# app development?

Can I use visual studio code to create and develop c# based WPF windows applications ? If so, what else do I need to install alongside visual studio code and how?

Developer technologies | Windows Presentation Foundation
Developer technologies | XAML
Developer technologies | XAML

A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.

876 questions
Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2022-10-06T11:08:34.417+00:00
Boom Ba 166 Reputation points
edited an answer 2026-04-02T04:32:32.5166667+00:00
Lex Li 6,037 Reputation points
2 answers

how to fix an error that affects the interface to not open

how to fix an error that affects the interface to not open

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-27T15:15:46.3533333+00:00
Wisdom Maluleke 0 Reputation points
answered 2026-03-30T03:48:08.7133333+00:00
Lizzy Dinh (WICLOUD CORPORATION) 430 Reputation points Microsoft External Staff Moderator
1 answer

AYUDA CON EL ERROR DE INSTALACION DE EL microsoft.visualcpp.redist.14 PARA INSTALAR LAS EXTENCIONES DE EL C#

PRESENTO ERRORES A EL INSTALAR LAS EXTENCIONES DE EL C# Y ME MUESTRA ESTE MENSAJE DE ERROR DE INSTALACION microsoft.visualcpp.redist.14

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-23T15:07:15.3233333+00:00
Addu Nuñez 0 Reputation points
commented 2026-03-30T03:23:34.73+00:00
Leon Tran (WICLOUD CORPORATION) 1,660 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

How to implement ICustomGameControllerFactory?

internal class Program { static void Main(string[] args) { Test().Wait(); } class CustomGameController: IGameController { public Headset Headset { get; set; } public bool IsWireless => true; public User User { get; set;…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-24T03:03:46.73+00:00
you74674 40 Reputation points
accepted 2026-03-25T04:32:06.8733333+00:00
you74674 40 Reputation points
2 answers

can i learn c# in azure devops server

what is the benefit of free subscription in azure as i need to learn c# and servers

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-23T03:50:14+00:00
Amr Hegazy 0 Reputation points
commented 2026-03-25T02:26:01.08+00:00
Lizzy Dinh (WICLOUD CORPORATION) 430 Reputation points Microsoft External Staff Moderator
1 answer

I need help creating a payroll system that includes Weekly wages and annual salary

I need help creating this payroll system for an assessment for my computer class It requires a C# code using Visual Studio 2019: Windows Form App (.NET Core) All information for this task is included here: Document and develop a computer…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2022-09-01T05:18:42.033+00:00
M. Segon 1 Reputation point
commented 2026-03-24T18:53:44.96+00:00
nadhira thembavani 0 Reputation points
2 answers One of the answers was accepted by the question author.

Incomplete login to a GMail account using OAuth 2.0

I am using this code (from here): const string GMailAccount = "******@gmail.com"; var clientSecrets = new ClientSecrets { ClientId = "XXX.apps.googleusercontent.com", ClientSecret = "XXX" }; var codeFlow = new…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-19T10:46:46.5666667+00:00
RogerSchlueter-7899 1,671 Reputation points
commented 2026-03-24T02:39:03.97+00:00
Nancy Vo (WICLOUD CORPORATION) 2,305 Reputation points Microsoft External Staff Moderator
7 answers One of the answers was accepted by the question author.

scheduler tasks with security options “Run whether user is logged on or not”.

We use the package <package id="TaskScheduler" version="2.12.2" targetFramework="net48" /> This is the code with three actions and its behavior: || | -------- | Task || | -------- | GUI || | -------- | Manually run…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-02-26T14:32:57.9+00:00
YOFFE Mike 20 Reputation points
accepted 2026-03-23T07:50:49.9166667+00:00
YOFFE Mike 20 Reputation points
2 answers One of the answers was accepted by the question author.

C# bool anomaly?

Winforms .Net Framework4.8 in VS 2022 Community 17.14.28 I’m querying  SQLite v3.46.1 with the ExecuteScalar<T> command  using the NuGet System.Data.SQLite and Dapper packages. This line of code runs fine:             bool testVar =…

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,792 questions
asked 2026-03-22T17:51:37.9266667+00:00
Art Hansen 621 Reputation points
edited an answer 2026-03-23T07:50:02.9066667+00:00
Nancy Vo (WICLOUD CORPORATION) 2,305 Reputation points Microsoft External Staff Moderator