Developer technologies | Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows devices.
3,098 questions
2 answers
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…
Developer technologies | Universal Windows Platform (UWP)
asked 2026-08-19T09:57:37.0533333+00:00
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Đoàn Viết Khôi Nguyên
0
Reputation points
commented 2026-08-27T05:49:29.5+00:00
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Đoàn Viết Khôi Nguyên
0
Reputation points
3 answers
VBA Excel - Getting the ActiveWorkbooks.Name that is having spaces
Hi, I have an Excel file (Archives_Years.xlsm) with a few sheets by years that I want to fill with some content of other files (excel or text files) that I am opening one by one in Excel (I have to adapt the VBA code depending of the file). In my…
Developer technologies | Visual Basic for Applications
Developer technologies | Visual Basic for Applications
An implementation of Visual Basic that is built into Microsoft products.
1,652 questions
asked 2026-08-27T02:14:03.8+00:00
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IsabelleCharest-5234
0
Reputation points
edited an answer 2026-08-27T05:45:33.72+00:00
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Senthil kumar
2,080
Reputation points
2 answers
C++ Program Being blocked by SAC after adding Cryptographic token
I am writing a Console application in Visual Studio, as a proof of concept, before I write the actual program I am wanting to make, the program ran perfectly fine for the last two days during small iterative upgrades, I have no build issues, but as soon…
Developer technologies | C++
Developer technologies | C++
A high-level, general-purpose programming language, created as an extension of the C programming language, that has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation.
4,104 questions
asked 2026-08-22T00:49:37.36+00:00
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Casey French
0
Reputation points
answered 2026-08-27T04:16:09.32+00:00
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Amit Yadav
0
Reputation points
2 answers
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…
Developer technologies | .NET | Other
Developer technologies | .NET | Other
Microsoft Technologies based on the .NET software framework. Miscellaneous topics that do not fit into specific categories.
4,180 questions
asked 2026-08-26T12:10:17.6733333+00:00
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test code
21
Reputation points
answered 2026-08-27T03:47:49.89+00:00
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Danny Nguyen (WICLOUD CORPORATION)
8,455
Reputation points • Microsoft External Staff
• Moderator
2 answers
Visual Studio Forms Designer: The given key 'reader' was not present in the dictionary.
I get the following error when trying to save a control after changing a property in the Forms Designer: Visual Studio Forms Designer: The given key 'reader' was not present in the dictionary. What causes this error? I have two minimal user controls…
Developer technologies | Windows Forms
Developer technologies | Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,998 questions
asked 2026-08-27T00:25:03.55+00:00
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Michael Pettigrew
0
Reputation points
edited an answer 2026-08-27T03:25:57.2766667+00:00
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Taki Ly (WICLOUD CORPORATION)
4,275
Reputation points • Microsoft External Staff
• Moderator
3 answers
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…
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.
11,814 questions
asked 2026-08-26T15:38:37.4566667+00:00
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Darryl Hoar
201
Reputation points
edited an answer 2026-08-27T03:06:18.27+00:00
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Tony Thach (WICLOUD CORPORATION)
565
Reputation points • Microsoft External Staff
• Moderator
2 answers
429 - woah, that's a lot of requests in https://marketplace.visualstudio.com/
429 - woah, that's a lot of requests in https://marketplace.visualstudio.com/ its been 2 months im facing same error, i tired to clear cache and still same issue let me know what is my issue causing this and stopping my extension to publish
Developer technologies | Visual Studio | Extensions
Developer technologies | Visual Studio | Extensions
Add-on components that enhance and customize the Visual Studio integrated development environment
399 questions
asked 2026-08-23T07:32:38.2266667+00:00
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sri kanth
0
Reputation points
commented 2026-08-27T02:27:25.6166667+00:00
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Danny Nguyen (WICLOUD CORPORATION)
8,455
Reputation points • Microsoft External Staff
• Moderator
2 answers
One of the answers was accepted by the question author.
How to use flan-t5-small or all-MiniLM-L6-v2 in .net iOS?
I am using .net iOS (iOS application) not .net MAUI and I want to ask that how to use all-MiniLM-L6-v2 or flan-t5-small in it? I want to feed a txt to it and ask questions about the txt ?
Developer technologies | .NET | .NET Machine Learning
Developer technologies | .NET | .NET Machine Learning
.NET: Microsoft Technologies based on the .NET software framework. Machine learning: A type of artificial intelligence focused on enabling computers to use observed data to evolve new behaviors that have not been explicitly programmed.
165 questions
asked 2026-08-22T06:10:58.17+00:00
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mc
7,296
Reputation points
commented 2026-08-27T02:26:57.3166667+00:00
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Danny Nguyen (WICLOUD CORPORATION)
8,455
Reputation points • Microsoft External Staff
• Moderator
4 answers
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…
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.
11,814 questions
asked 2026-08-19T18:49:18.9966667+00:00
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Jerry
121
Reputation points
commented 2026-08-27T02:24:27.2+00:00
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Danny Nguyen (WICLOUD CORPORATION)
8,455
Reputation points • Microsoft External Staff
• Moderator
2 answers
One of the answers was accepted by the question author.
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?
Developer technologies | Universal Windows Platform (UWP)
Developer technologies | Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows devices.
3,098 questions
asked 2026-08-26T04:11:34+00:00
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Brandon Tafolla
20
Reputation points
commented 2026-08-27T01:28:13.73+00:00
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Jay Pham (WICLOUD CORPORATION)
4,350
Reputation points • Microsoft External Staff
• Moderator
1 answer
One of the answers was accepted by the question author.
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…
Developer technologies | .NET | Entity Framework Core
Developer technologies | .NET | Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
798 questions
Developer technologies | .NET | Blazor
Developer technologies | .NET | Blazor
A free and open-source web framework that enables developers to create web apps using C# and HTML, developed by Microsoft.
1,704 questions
asked 2023-01-09T17:22:52.197+00:00
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Richard Baker
21
Reputation points
commented 2026-08-26T15:29:22.76+00:00
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JuliaMarvin
21,425
Reputation points
• Volunteer Moderator
2 answers
missing .net 3.5 on windows 11
on my windows11 .net 3.5 not available to install
Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,337 questions
asked 2026-08-20T18:10:45.4466667+00:00
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yoshobanta garnaik
5
Reputation points
commented 2026-08-26T07:05:01.59+00:00
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Danny Nguyen (WICLOUD CORPORATION)
8,455
Reputation points • Microsoft External Staff
• Moderator
2 answers
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(); …
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.
11,814 questions
asked 2026-08-18T15:37:47.1+00:00
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Mark Curtis
5
Reputation points
commented 2026-08-26T02:34:00.2466667+00:00
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Tony Thach (WICLOUD CORPORATION)
565
Reputation points • Microsoft External Staff
• Moderator
2 answers
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…
Developer technologies | Visual Basic for Applications
Developer technologies | Visual Basic for Applications
An implementation of Visual Basic that is built into Microsoft products.
1,652 questions
asked 2026-08-19T04:43:10.06+00:00
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sachin kumar
5
Reputation points
commented 2026-08-26T02:33:29.9366667+00:00
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Tony Thach (WICLOUD CORPORATION)
565
Reputation points • Microsoft External Staff
• Moderator
1 answer
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…
Developer technologies | Visual Studio | Extensions
Developer technologies | Visual Studio | Extensions
Add-on components that enhance and customize the Visual Studio integrated development environment
399 questions
asked 2026-08-19T07:01:59.2533333+00:00
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Liming Xie
0
Reputation points
commented 2026-08-26T00:26:54.6866667+00:00
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Jay Pham (WICLOUD CORPORATION)
4,350
Reputation points • Microsoft External Staff
• Moderator
2 answers
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…
Developer technologies | Visual Studio | Extensions
Developer technologies | Visual Studio | Extensions
Add-on components that enhance and customize the Visual Studio integrated development environment
399 questions
asked 2026-08-20T15:59:53.9866667+00:00
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Chitluri, Durga
0
Reputation points
commented 2026-08-26T00:26:01.0566667+00:00
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Jay Pham (WICLOUD CORPORATION)
4,350
Reputation points • Microsoft External Staff
• Moderator
3 answers
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…
Developer technologies | Windows Forms
Developer technologies | Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,998 questions
asked 2026-04-27T06:20:47.45+00:00
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Yuvaraj Masilamani
0
Reputation points
commented 2026-08-25T12:57:57.3+00:00
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Yuvaraj Masilamani
0
Reputation points
3 answers
One of the answers was accepted by the question author.
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…
Developer technologies | Windows Presentation Foundation
Developer technologies | Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
2,896 questions
3 answers
One of the answers was accepted by the question author.
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 =…
Developer technologies | VB
Developer technologies | VB
An object-oriented programming language developed by Microsoft that can be used in .NET.
2,940 questions
asked 2026-08-22T02:35:16.3133333+00:00
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RogerSchlueter-7899
1,781
Reputation points
commented 2026-08-25T05:15:40.6566667+00:00
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RogerSchlueter-7899
1,781
Reputation points
3 answers
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
Developer technologies | Visual Studio | Setup
Developer technologies | Visual Studio | Setup
The process of installing, configuring, and customizing Visual Studio to support development workflows across languages, platforms, and workloads.
1,402 questions
asked 2026-08-18T04:39:46.6933333+00:00
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Ishak, Mohammed
0
Reputation points
answered 2026-08-25T03:13:32.2566667+00:00
Jessica Munoz Valerio
0
Reputation points