Developer technologies

How to dynamically assign property names for XmlOnlyMediaFormatter

I have been given an ASP.NET project to handle. It has been released and has worked fine. I am not an ASP.NET developer but doing what I can. The issue: The project is a webservice among other things. The solution (VS 2019) has 6 projects. One is the…

Blazor Server IHttpContextAccessor returning null when deployed

I am dynamically setting the connection string based on the user that is logged in. This is working perfectly when running locally/debugging but when its deployed it's returning a null reference exception. This is my DbContext and I am handling the…

WebView2 stops working after 2 - 3 days with HRESULT 0x8007139F in WinForms application

We have a VB.NET WinForms application that uses five WebView2 controls on the same form. A client is experiencing the following problem: WebView2 works normally for approximately 2–3 days. After that, the application only shows the loading state and…

Xbox chat service app

I am developing a app to allow chat in the back ground as game is running. I have players the dont want to use discord. Is there a way to do that type of background app?

missing .net 3.5 on windows 11

on my windows11 .net 3.5 not available to install

Creating a new List<int>() throws a NullReferenceException.

The following code throw a NullReferenceException on the hightlighted line: using IS0AUTTSTContext db = GetDbContext(); List<TestRun> list = db.TestRuns.Where(t => t.ID > 0 && t.Definition!.Application!.Deleted == false).ToList(); …

Run time error 9, Subscript out of range eroor is showing while using Excel VBA

Run time error 9, Subscript out of range error is showing while using Excel VBA, When i am using Excel VBA and write coding for run a macro and when i run the code this error is showing, I tried every thing to solve this, but not working, I am unable to…

VS Code Marketplace publish blocked by VSID "Concurrency" rate limit for over 24 hours — verify-pat also blocked

We cannot publish updates to our VS Code extension and even a read-only PAT verification is rejected. Microsoft support seems to be the only way to clear this, so please help. Symptom Since yesterday (2026-08-19), every call to the Marketplace publishing…

Unable to install SSIS extension (Microsoft.DataTools.IntegrationServices.exe) on VS 2022 Professional in an air-gapped Windows Server 2025 environment (Error 0x80070643).

Issue Details / Problem Description: Environment: Operating System: Windows Server 2025 Datacenter Development Tool: Visual Studio Professional 2022 (installed offline to custom directory path: F:\Program Files\Microsoft Visual…

Smart App Control blocks WinForms / WPF sample applications from running

When Smart App Control is enabled on Windows, I am unable to run WinForms or WPF sample applications from Microsoft Visual Studio. After enabling Smart App Control and attempting to run the project, Visual Studio shows the following error. Smart App…

Windows Update breaks WPF TrueType font subsetting (Calibri.ttf format specification error) KB5120708

When printing in .NET Framework 4.8 application WPF, it seems to have broken the XPS printing. See stack trace below. If I uninstall the KB5120708 update, it works again. It has broken our printing functionality on our business application. Can any one…

Why does my code work only once?

My application includes a stopwatch plus a lap counter. The stopwatch is working fine using the following code: Private Sub StartTimer(sender As Object, e As RoutedEventArgs) Handles btnStart.Click CurrentTime = TimeSpan.Zero LapTime =…

A version of Visual Studio is Available, visit the link to get information on the lastest update and support

Hi After installing the VS 2026, when i click the launch the button its showing the popup like new version is available.. I cannot able to close the popup.. its just exit the VS completely.. May i know the solution for that

my visual studio code is unable to compile c++ file

my visual studio code is giving too many error even though the code is right and mingw is installed in the system and unable to comile and run the code

Security issues if I use a encrypted value as a Query string that I send to users and then decrypt the value and validate on link click?

I'm working on a project where we will need to send out links to a large number users and each is assigned a unique combination of numbers and letters to identify them in our system. My task it to come up with a way we can use just the link we send them…

Project Spartan 10009/10049 AppX reports "End of Life" on modern Windows

Project Spartan 10009/10049 AppX reports "End of Life" on modern Windows Hi Microsoft, I'm an 11-year-old kid who really likes Windows modding, reverse engineering, and experimenting with old Windows software. Recently, I ran into a problem…

Visual Studio 2022 17.14.39 no longer able to use git when logged in as different user

I need to run Visual Studio (2022) as two different users, as only some of the projects I work on are allowed to use Github copilot (customer restrictions). So, I have a primary account "seb", where my main VS runs, which is not logged in into…

Azure sign in torture

Visual Studio 2022 Community: Authentication Flow Regression / Account System Misdesign Dear Microsoft, I write this with the deepest possible respect, and with only the mildest desire to strike the Visual Studio account subsystem with a velvet-wrapped…

In Visual Studio IDE 2026, GitHub Copilot Chat, I must stretch the side bar to find the apply button

Visual Basic

Debug Step INTO and STEP OVER do not work when projects created in VB 2010 are loaded into later versions.