55,898 questions with Developer technologies-related tags

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URGENT: Visual Studio Installer complete crash / Cannot uninstall / System.IO.FileNotFoundException

Dear Microsoft Support, I am reporting a critical issue with the Visual Studio Installer that has completely blocked my work and prevents me from completing an urgent C# project. The installer is broken, it won't allow me to install or uninstall the IDE,…

Developer technologies | Visual Studio | Setup
asked 2026-03-28T13:29:02.5466667+00:00
Dan Shy 0 Reputation points
commented 2026-05-11T16:00:42.2566667+00:00
Dan Shy 0 Reputation points
3 answers One of the answers was accepted by the question author.

Update of another workbook with a vba macro

Since last version of excel it is impossible from a workbook to open another one ,make changes and save them and then close the workbook. The process works, but when the workbook is closed the version before changes is back again (file with the initial…

Developer technologies | Visual Basic for Applications
asked 2026-05-05T23:13:01.4266667+00:00
Jacques Abel 20 Reputation points
accepted 2026-05-11T15:18:32.34+00:00
Jacques Abel 20 Reputation points
1 answer

how to reset a password in Microsoft Visual Basics?

I would like to modify a formula or have access to the document data but the employee put a password and quit. How do I reset it?

Developer technologies | Visual Basic for Applications
asked 2026-05-11T14:51:48.9266667+00:00
Traffic 0 Reputation points
answered 2026-05-11T14:52:00.8933333+00:00
Q&A Assist
2 answers One of the answers was accepted by the question author.

Simplest form to get JSON from a .dbf in Visual Fox pro 9.0 to import to an ASI?

What is the simplest form to get JSON format from a .dbf in Visual Fox pro 9.0 to import to an ASI?

Developer technologies | Visual Studio | Other
Developer technologies | Visual Studio | Other

A family of Microsoft suites of integrated development tools for building applications for Windows, the web, mobile devices and many other platforms. Miscellaneous topics that do not fit into specific categories.

5,751 questions
asked 2026-05-02T12:41:59.09+00:00
Larry Nuñez 46 Reputation points
accepted 2026-05-11T13:48:45.6166667+00:00
Larry Nuñez 46 Reputation points
3 answers One of the answers was accepted by the question author.

where to start if I want to learn C#

where should I start if I want to learn C#, I have no previous C# knowledge, but have a lot of experience in C++

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.

11,803 questions
asked 2026-05-08T19:34:41.1633333+00:00
Vladislav Velimirovic 40 Reputation points
accepted 2026-05-11T13:44:16.2033333+00:00
Vladislav Velimirovic 40 Reputation points
2 answers

I cannot get VBA in Excel to make the Userform Calculator i created to perform operations on numbers with decimals right

Private Sub cmbdecimal_Click() If InStr(txtDisplay.Text, ".") = 0 Then txtDisplay.Text = txtDisplay.Text + "." End If End Sub ^This is the code i used on the command button for "." I can type a decimal, but the answer the…

Developer technologies | Visual Basic for Applications
asked 2026-05-10T08:01:25.4+00:00
Joshua Mcdowall 0 Reputation points
answered 2026-05-11T12:16:54.7866667+00:00
Surya Amrutha Vaishnavi Lanka (INFOSYS LIMITED) 2,195 Reputation points Microsoft External Staff
3 answers

ActivX component can't create object

Developer technologies | VB
Developer technologies | VB

An object-oriented programming language developed by Microsoft that can be used in .NET.

2,931 questions
asked 2026-05-06T10:28:24.11+00:00
Mohitkumar Parmar 0 Reputation points
commented 2026-05-11T12:08:13.75+00:00
Varsha Dundigalla(INFOSYS LIMITED) 4,945 Reputation points Microsoft External Staff
2 answers

WHen trying to show form in visual studio get error "The designer could not be shown for this file because none of the classes within can be designed. The base class 'System.Void' cannot be designed

Earlier this year after installing an update to visual studio for an application with a very long history, When I would go into my VB.net application, on most forms I would get the error above. I've had to recreate dozens of forms because of the error…

Developer technologies | Visual Studio | Setup
asked 2026-05-02T20:12:19.88+00:00
Eric Hedman 0 Reputation points
commented 2026-05-11T11:52:59.9633333+00:00
Gade Harika (INFOSYS LIMITED) 2,765 Reputation points Microsoft External Staff
2 answers

Incorrect DPI Scaling in WinForms Custom Control with PerMonitorV2 on Multi-Monitor Setup

When using a custom WinForms control in a dual‑monitor setup with PerMonitorV2 DPI awareness, the application does not scale correctly based on the monitor where it is launched. I tested the application in a configuration where primary and secondary…

Developer technologies | Windows Forms
asked 2026-05-11T09:35:40.8433333+00:00
Monika Theerthagiri 0 Reputation points
answered 2026-05-11T11:12:52.6133333+00:00
Danny Nguyen (WICLOUD CORPORATION) 6,865 Reputation points Microsoft External Staff Moderator
3 answers

What Is the Actual Maximum Argument Length for Process.Start?

Description I am trying to determine the actual argument length limits when using Process.Start and ProcessStartInfo in .NET. I found the following references: Microsoft documentation for ProcessStartInfo.Arguments Property :…

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.

1,320 questions
asked 2026-05-07T10:48:46.41+00:00
Researcher 76 Reputation points
edited an answer 2026-05-11T10:35:43.5466667+00:00
Surya Amrutha Vaishnavi Lanka (INFOSYS LIMITED) 2,195 Reputation points Microsoft External Staff
2 answers

Visual Studio User License

Hi Team, I am trying to add an additional user account for Visual Studio licenses, but I am encountering the following error: "No more licenses available for this account. Please contact support." Currently, we have 3 active accounts, and up to…

Developer technologies | Visual Studio | Other
Developer technologies | Visual Studio | Other

A family of Microsoft suites of integrated development tools for building applications for Windows, the web, mobile devices and many other platforms. Miscellaneous topics that do not fit into specific categories.

5,751 questions
asked 2026-04-06T11:29:34.7433333+00:00
Harshal Yelpale 0 Reputation points
edited an answer 2026-05-11T10:06:57.7733333+00:00
kagiyama yutaka 2,425 Reputation points
3 answers One of the answers was accepted by the question author.

App does not support the 16KB memory page sizes

I got the below error message from the play store for my xamarin forms application: I am migrating it to MAUI now. So is the MAUI version fix this issue? Below are the packages I am using in the MAUI version. .NET MAUI…

Developer technologies | .NET | .NET MAUI
asked 2026-04-08T10:57:49.8633333+00:00
Sreenivasan, Sreejith 780 Reputation points
commented 2026-05-11T09:27:09.42+00:00
Nancy Vo (WICLOUD CORPORATION) 3,710 Reputation points Microsoft External Staff Moderator
1 answer

Why i only have 1.3gb to use in Xbox Dev Mode

I understand you can use approximately 5GB of RAM in Xbox Dev Mode, but it only lets me use 1.3GB. screenshot.

Developer technologies | Universal Windows Platform (UWP)
asked 2026-05-02T23:41:55.3033333+00:00
Elias Benjamin Lopez Perez 0 Reputation points
commented 2026-05-11T09:12:00.76+00:00
Danny Nguyen (WICLOUD CORPORATION) 6,865 Reputation points Microsoft External Staff Moderator
2 answers

Adding Entitlements.plist crashes the IOS publish

I have just upgraded a .NET 8 MAUI app to .NET 10 and one of the requirements is that I have an Entitlements.plist file for access to the keychain. My publish is failing with a missing ResourceRule.plist file, but I followed all the instructions of…

Developer technologies | .NET | .NET MAUI
asked 2026-05-06T09:44:16.3966667+00:00
Jai Holloway 65 Reputation points
answered 2026-05-11T08:43:44.0566667+00:00
Michael Le (WICLOUD CORPORATION) 11,320 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

How to reduce JPEG file size after compressing images using C# System.Drawing in .NET 6?

I am building a web application on Azure App Service using .NET 6 and the System.Drawing.Common library. I need to upload and compress multiple JPEG images that users submit via a form. Currently, I am using the Image.Save() method with Encoder.Quality…

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.

11,803 questions
asked 2026-05-11T05:37:43.6833333+00:00
Shakeel khan 0 Reputation points
edited a comment 2026-05-11T08:39:10.1833333+00:00
Viorel 126.9K Reputation points
3 answers

Missing ResourceRules.plist in MAUI archive process

Hi there We had a XAMARIN app which was upgraded to .NET 8 MAUI, which was then upgraded to .NET 10 MAUI. I can no longer build in .NET 8, which is why the upgrade happened. I am now trying to archive the file in .NET 10 but am getting an error that the…

Developer technologies | .NET | .NET MAUI
asked 2026-05-05T06:45:28.42+00:00
Jai Holloway 65 Reputation points
commented 2026-05-11T08:04:43.5066667+00:00
Nancy Vo (WICLOUD CORPORATION) 3,710 Reputation points Microsoft External Staff Moderator
2 answers

In maui collectionview scrolling has issues in android.

In collection view scrolling to bottom when the list is updated is not happening. I am implementing the chat list and depending on user response, the response differs from chatbot. I could see the data below but I need to scroll to bottom to manually.…

Developer technologies | .NET | .NET MAUI
asked 2026-04-29T05:32:10.7866667+00:00
Keerthana Krishna 60 Reputation points
commented 2026-05-11T07:56:21.41+00:00
Nancy Vo (WICLOUD CORPORATION) 3,710 Reputation points Microsoft External Staff Moderator
2 answers

install Visual studio + Intel Parallel Studio in a new computer

I'm a Fortran user. I bought a new computer and I want to install the Visual studio with the Intel Parallel studio composer edition for Fortran Windows. I already have them in my old notebook, but the installers are not working any more. Can you please…

Developer technologies | Visual Studio | Setup
asked 2026-04-27T17:06:14.55+00:00
Denilson Espirito Santo 0 Reputation points
edited a comment 2026-05-11T07:36:23.5666667+00:00
Lizzy Dinh (WICLOUD CORPORATION) 445 Reputation points Microsoft External Staff Moderator
3 answers

How to access Properties of objects in Excel VBA

Things seem to have changed in VBA since I last wrote any code. I am designing a small project for home use, using Excel and VBA. I find I can add controls to a userform but I cannot change their properties at design time. For example, I have a…

Developer technologies | Visual Basic for Applications
asked 2026-05-05T12:50:37.8666667+00:00
Alan Sears 0 Reputation points
commented 2026-05-11T06:25:37.67+00:00
Jack Dang (WICLOUD CORPORATION) 17,585 Reputation points Microsoft External Staff Moderator
2 answers

How to attestation for verify pc security boot,... by using TPM Azure Attestation in C# Project

1.My project uses C# along with nuget: ,,,,,,,,,,,,,,,,,,,,,,,,,,,

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.

11,803 questions
asked 2026-05-05T07:59:02.9266667+00:00
PThanh 0 Reputation points
commented 2026-05-11T06:18:52.0933333+00:00
Nancy Vo (WICLOUD CORPORATION) 3,710 Reputation points Microsoft External Staff Moderator