43,048 questions with Developer technologies-related tags

Sort by: Updated
2 answers One of the answers was accepted by the question author.

Requiring Authorization Causes Long Url

Hello everyone and thanks for the help in advance. I am developing an Asp.net 9 Core MVC application. I want to all controllers to require authorization rather than having to decorate each action with [Authorize]. I tried…

Developer technologies | ASP.NET | ASP.NET Core
asked Jul 20, 2025, 2:02 AM
Kmcnet 1,066 Reputation points
accepted Jul 22, 2025, 1:27 AM
Kmcnet 1,066 Reputation points
2 answers One of the answers was accepted by the question author.

Windows application specific's registry key

I need a place to put configuration for my Win32 application inside the registry. Where it is should be? Are there multiple places to store application-specific registry?

Windows development | Windows API - Win32
Windows for business | Windows Client for IT Pros | User experience | Other
Developer technologies | C++
asked Oct 4, 2022, 4:30 AM
thebluetropics 1,046 Reputation points
commented Jul 21, 2025, 11:00 PM
Bruce (SqlWork.com) 78,481 Reputation points Volunteer Moderator
3 answers One of the answers was accepted by the question author.

Visual Studio 2013 license not working after move to new machine

Purchased Visual Studio Professional 2013 back in 2013 or 2014. Installed on a laptop. Never installed on any other device. Ancient laptop is close to death, so I started moving to a new Windows 11 laptop. I installed VS 2013 from the original DVDs a…

Developer technologies | Visual Studio | Setup
asked Jul 18, 2025, 5:05 PM
Clark Coleman 20 Reputation points
answered Jul 21, 2025, 9:23 PM
HARDCORE GAMES™ 175 Reputation points
1 answer One of the answers was accepted by the question author.

Can ClosedXML be used in a Visual Studio developed .Net9 Blazor Webassembly app?

I have read conflicting statements about whether ClosedXML can be used in a Blazor Webassembly app. A Google seacrh of "can Closedxml be used in a Blazor WASM app c#" produces an AI response of "yes" though with caveats about…

Developer technologies | Visual Studio | Other
asked Jul 19, 2025, 2:23 PM
Steve Rehling 165 Reputation points
accepted Jul 21, 2025, 9:11 PM
Steve Rehling 165 Reputation points
2 answers

c# windows form definition for abstract class

I'm creating a number of abstract classes. One represents a production ticket with a number of parameters such as number of items to test, part number, electrical values, etc. My background is in embedded coding so I'm not 100% sure the most efficient…

Developer technologies | C#
asked Jun 17, 2025, 10:21 PM
mjeschke 40 Reputation points
commented Jul 21, 2025, 7:10 PM
Matthew Jeschke 20 Reputation points
1 answer

why abc4j can not parse the file?

I am using .net android and add the package : abc4j to parse music file. but there is error and I can not parse it. this is the music file: p.txt

Developer technologies | .NET | .NET MAUI
asked Jul 18, 2025, 9:04 AM
mc 5,591 Reputation points
answered Jul 21, 2025, 6:06 PM
Rob Caplan - MSFT 6,037 Reputation points Microsoft Employee Moderator
2 answers

How to use existing Visual Studio subscription/license on new laptop

Several years ago I purchased a subscription for microsoft visual studio profesional and am still paying monthly. The laptop I was using Visual Studio 2019 on is no longer functioning.  However, I have the hard drive from the old laptop in my new laptop.…

Developer technologies | Visual Studio | Setup
asked Jul 10, 2025, 1:39 PM
Duffy, John 0 Reputation points
commented Jul 21, 2025, 5:11 PM
Duffy, John 0 Reputation points
1 answer One of the answers was accepted by the question author.

How can sales and commissions be calculated based on multiple conditions?

I want to extract commission from sales using multiple conditions using LINQ query. Here different types of commission are assigned on different sales values. I need this in my report sheet. If any experienced person could help me, I would be benefited.…

Developer technologies | ASP.NET | ASP.NET Core
asked Jul 17, 2025, 6:02 AM
jewel 1,231 Reputation points
accepted Jul 21, 2025, 5:04 PM
jewel 1,231 Reputation points
1 answer

The correct CChildFrame is not activated after the predecessor is closed.

MFC MDI application. Opened several CChildFrame s. (To illustrate better my issue I identified every CChildFrame with an unique id.) Opened, lets say, 5 CChildFrame. 1, 2, 3, 4, 5. List the order of the CChildFrame by menu: About: List…

Developer technologies | C++
asked Jul 21, 2025, 11:59 AM
Flaviu_ 1,071 Reputation points
answered Jul 21, 2025, 4:08 PM
RLWA32 49,976 Reputation points
2 answers One of the answers was accepted by the question author.

Is it still the case that a Blazor WebAssembly cannot reference a Blazor Server-Side project?

I'm working on rewriting an old ASP.NET WebForms app. I've created an ASP.NET Core Blazor app using .NET 9, with both a server-side project and a WebAssembly (Client) project. The server-side project has the Home page and allows the user to change the…

Developer technologies | ASP.NET | ASP.NET Core
asked Jul 17, 2025, 8:24 PM
Falanga, Rod, DOH 290 Reputation points
commented Jul 21, 2025, 3:20 PM
Falanga, Rod, DOH 290 Reputation points
3 answers

Error In Update Record (The instance of entity type 'x' cannot be tracked)

I have this error when update record in RoleRepository.cs. i use AsNoTracking but show error again The instance of entity type 'ApplicationRole' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked.…

Developer technologies | .NET | Entity Framework Core
asked Feb 20, 2022, 11:47 AM
Mahdi Elahi 31 Reputation points
commented Jul 21, 2025, 1:46 PM
AnilKumar Pelluri 0 Reputation points
1 answer

Help fixing template logging code

In the line return $log, "testVoid4"; I'm getting this compile error: 'void' function returning a value I don't understand why when $log, is called with just a single argument void_wrapper is returning anything else than void. How I could make…

Developer technologies | C++
asked Jul 16, 2025, 6:42 AM
Lilo 40 Reputation points
commented Jul 21, 2025, 1:16 PM
Varsha Dundigalla(INFOSYS LIMITED) 245 Reputation points Microsoft External Staff
1 answer

Emails with Undeliverable Subject don't get saved on a text File

Hi, I would like to ask if this is intended or a bug. I'm currently working on a program wherein all of the bounced emails (specifically undelivered emails) will be caught and then fetch the email addresses of the recipient of the undelivered emails…

Developer technologies | C#
asked Jul 16, 2025, 4:29 AM
Emmanuel Legaspi 0 Reputation points
answered Jul 21, 2025, 1:14 PM
Muskan Tomar 150 Reputation points Microsoft Employee
1 answer

Microsoft - Graph - Batch API - Getting 429 Too Many Requests error

I have created a website where user's will authenticate and grant Calendar events - Read/Write access. My application will create events for the user based on the user's schedule. Here some times user might have more than 100 records also. I'm using…

Developer technologies | C#
asked Jun 30, 2025, 10:24 AM
Shravan Samboju 0 Reputation points
answered Jul 21, 2025, 1:11 PM
Muskan Tomar 150 Reputation points Microsoft Employee
4 answers

Access database set Default Value of a short text field of another short text field

Hi there I have an access database with a short text field called TM Description. I have created another short text field called BrandingDescription that I want to set the Default Value to the text entered in TM Description, ie the two fields would show…

Developer technologies | VB
asked Jul 17, 2025, 1:56 AM
Emily Williams 0 Reputation points
answered Jul 21, 2025, 1:10 PM
Michael Larkins 0 Reputation points
2 answers

Making a Blazor WebAssembly E-commerce Application Responsive with Flexbox

A Blazor WebAssembly e-commerce application has been built, but the design looks good only on a 23-inch 1920x1080 laptop. The layout includes a header, a left navigation menu, and a footer that is consistent across all pages. The goal is to make this…

Developer technologies | ASP.NET | ASP.NET Core
Developer technologies | .NET | Blazor
asked Dec 31, 2024, 8:20 AM
Cenk 1,036 Reputation points
commented Jul 21, 2025, 10:36 AM
Raymond Huynh (WICLOUD CORPORATION) 315 Reputation points Microsoft External Staff
2 answers

System.NullReferansException:

I would like to insert product but SelectListItem returned true Can you help me? It will make me crazy

Developer technologies | ASP.NET | ASP.NET Core
asked Dec 20, 2024, 6:41 AM
Case Ventil 0 Reputation points
commented Jul 21, 2025, 10:30 AM
Raymond Huynh (WICLOUD CORPORATION) 315 Reputation points Microsoft External Staff
1 answer

How to load Langauge Server (LSP) when loading the extension package

I have a requirement of loading the Language Server (LSP) explcitly without opening any file (of the Language Server's content type). But currently the Langauge Server gets loaded only when a file of this content type is opened. Is there a way to load…

Developer technologies | Visual Studio | Extensions
asked Jul 14, 2025, 2:45 PM
Sajith 21 Reputation points
edited a comment Jul 21, 2025, 10:18 AM
Varsha Dundigalla(INFOSYS LIMITED) 245 Reputation points Microsoft External Staff
1 answer

Visual Studio 2022 Build Failure Due to Shortcut Creation Issue

The solution includes a Setup Project that fails to build, causing the build process to be cancelled. This has worked previously without issues. To troubleshoot, the solution was tested on two other computers: one with Visual Studio 2019 and another with…

Developer technologies | Visual Studio | Debugging
asked Jun 27, 2025, 7:11 AM
Sean Kozen 0 Reputation points
commented Jul 21, 2025, 10:09 AM
Adiba Khan 95 Reputation points Microsoft External Staff
1 answer

An installation file didn't download

I keep getting this error while downloading the visual studio community 2022 package. I have used different VPNs and DNS and have turned my laptop off and on many times but it did not work. What is the problem and solution?

Developer technologies | Visual Studio | Setup
asked Jul 7, 2025, 11:18 PM
Mmd Hwdi 0 Reputation points
commented Jul 21, 2025, 10:09 AM
Adiba Khan 95 Reputation points Microsoft External Staff