1,888 questions with Windows Forms tags

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

Using SQL Server Read/Write Image Ever Day With A Table

I've a case that need to save Image in database, than user can search/upload site(DB) to site(DB) ever day from winform. Every image size average 250kb - 350kb, The total usage with image perhaps growth 110GB/year without delete form database. I'll…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2024-04-25T12:58:15.02+00:00
LRC1006 20 Reputation points
accepted 2024-09-29T07:43:20.2166667+00:00
LRC1006 20 Reputation points
0 answers

High DPI with embedded WinForm UserControl in a Win32 application.

Apologies in advance as this question is a long shot and somewhat obscure. I have a C++ application I maintain. It embeds two .NET 4.x WinForms User Controls as panels in its Win32 window with: My_Control.CreateInstance(L"My…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
Windows
Windows
A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.
5,376 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,833 questions
Windows API - Win32
Windows API - Win32
A core set of Windows application programming interfaces (APIs) for desktop and server applications. Previously known as Win32 API.
2,609 questions
.NET CLI
.NET CLI
A cross-platform toolchain for developing, building, running, and publishing .NET applications.
336 questions
asked 2024-09-27T11:30:11.23+00:00
Robinson 146 Reputation points
commented 2024-09-27T14:29:38.39+00:00
Robinson 146 Reputation points
2 answers

How to Fix: Method "Form1_Load" not Found

just got started using visual basic and I don't know how to fix this

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
2,722 questions
asked 2024-09-27T04:32:34.6266667+00:00
Kaz 0 Reputation points
edited an answer 2024-09-27T07:55:12.11+00:00
Jiachen Li-MSFT 31,166 Reputation points Microsoft Vendor
1 answer

When calling FlashWindowEx, Window behaves abnormally in Windows 11.

We would like to inquire about an abnormal behavior observed during the development of a Windows-based application. This was working normally in Windows 10, but in Windows 11, abnormal behavior has been confirmed when calling the Window API as shown…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
Windows API - Win32
Windows API - Win32
A core set of Windows application programming interfaces (APIs) for desktop and server applications. Previously known as Win32 API.
2,609 questions
Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
9,582 questions
asked 2024-09-24T09:32:40.85+00:00
윤기 오 0 Reputation points
commented 2024-09-27T06:43:23.3566667+00:00
Jiale Xue - MSFT 44,921 Reputation points Microsoft Vendor
0 answers

Trying to repair an .STL file in 3D Builder. Results:"One or more objects are invalidly defined, click here to repair." Result:"Service not available please check your internet connection." Internet is fine.

I am trying to repair an .STL file in 3D Builder. After loading the file is says, "One or more objects are invalidly defined. Click here to repair." When I click I get the following message, "Service not available please check your…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2024-09-22T19:13:23.06+00:00
Gerard Tonno 0 Reputation points
commented 2024-09-23T01:44:29.5333333+00:00
Jiale Xue - MSFT 44,921 Reputation points Microsoft Vendor
2 answers

GUI using Windows Forms and Powershell

I am building a GUI using Windows Forms in Powershell. I have created 4 Radio Buttons with a line of text to the right of each button to describe the purpose . The text is long (22 Characters) and it is being wrapped onto two lines when I want it to…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2024-09-08T18:03:07.94+00:00
Dave Turnbull 20 Reputation points
commented 2024-09-20T14:38:12.4966667+00:00
Jiale Xue - MSFT 44,921 Reputation points Microsoft Vendor
2 answers

Wenn ich eine Bitmap an ein Property eines UserControl übergeben will kommt es zum Fehler

Wenn ich in einer Anwendung eine Bitmap an mein eingebundenes UserControl übergeben möchte kommt es seit ich das UserControl unter NET 8.0 erstelle, zu folgendem Fehler Unter NET 4.0 funktionierte das Programm noch. Warum? Danke für die Hilfe, Gruß…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2024-09-17T11:31:06.94+00:00
Klaus Ruttkowski 0 Reputation points
answered 2024-09-20T12:11:13.33+00:00
Klaus Ruttkowski 0 Reputation points
2 answers

All Toolbox Options Greyed in Visual Studio 2022

I have recently upgraded my WinForm C# application from .Net 4.7.x to .Net 6 I wish to make a change to one of the Forms, however when I try to add any control to any form, I find that all options are greyed out in the Toolbox, so I can modify any of the…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
C#
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.
10,900 questions
asked 2024-04-20T11:10:48.4966667+00:00
Tony Hedge 6 Reputation points
answered 2024-09-19T19:27:22.0166667+00:00
JohnKarajim 0 Reputation points
1 answer

C# windows form crash

Hi, I'm writing my Windows forms project in C# using the latest versione available of Visual Studio Community (17.9.3). The project manages a Modbus TCP client connection using the NModbus library to a proprietary and tested server. The connection is…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
C#
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.
10,900 questions
asked 2024-03-13T10:22:08.48+00:00
Isacco Simonini 5 Reputation points
commented 2024-09-13T14:27:01.4466667+00:00
CH Abdullah 0 Reputation points
1 answer

Burn the files on CD with the full directory tree structure.

The application built on C# Winforms, Framework 4.6.2 and there is the need to burn all the files and folders from the root folder, including itself to CD. The entry parameter is the source root folder path. The folder contains inside all of the needed…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
C#
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.
10,900 questions
asked 2024-08-22T11:26:40.8333333+00:00
Dani_S 3,766 Reputation points
commented 2024-09-05T18:31:57.4066667+00:00
Bruce (SqlWork.com) 64,826 Reputation points
2 answers

Error calling a Web API with self-signed ClientCertificate using HttpClient in .NET Core (IIS and Winforms using C#)

We are currently migrating our code from .NET 4.7.2 to NET 7 (.Net Core). Everything has been moved forward except one project that has to consume another company’s WebApi rest web service. When we were forced to interact with this company they were…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
ASP.NET Core
ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,551 questions
C#
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.
10,900 questions
ASP.NET API
ASP.NET API
ASP.NET: A set of technologies in the .NET Framework for building web applications and XML web services.API: A software intermediary that allows two applications to interact with each other.
335 questions
asked 2023-09-03T21:58:31.0133333+00:00
Shane Vickery 5 Reputation points
answered 2024-09-05T12:43:52.1166667+00:00
Greyson Heun 0 Reputation points
1 answer

Take a few seconds to open Dialog Box in Windows Form Application

I have a C# project, which is a Windows Form application. When clicking a button and opening dialog box, it takes a few seconds to open. How can I improve this? If needed, you can help me by having remote access to my PC.

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,833 questions
C#
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.
10,900 questions
asked 2024-08-30T19:31:03.38+00:00
Phillip Stewart 0 Reputation points
commented 2024-09-03T02:04:30.97+00:00
Jiale Xue - MSFT 44,921 Reputation points Microsoft Vendor
3 answers One of the answers was accepted by the question author.

How to display menu by NotifyIcon without displaying the form in Taskbar

I have a form with a NotifyIcon and a ContextMenuStrip and I want to display the menu by clicking on the notification, but unfortunately it is displayed in the taskbar. Why? I tried setting the ShowInTaskbar property to false, but it didn't work.Tip Only…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
Windows API - Win32
Windows API - Win32
A core set of Windows application programming interfaces (APIs) for desktop and server applications. Previously known as Win32 API.
2,609 questions
VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
2,722 questions
asked 2024-08-10T19:15:01.1466667+00:00
Mansour_Dalir 1,876 Reputation points
edited the question 2024-08-29T19:14:51.8933333+00:00
Mansour_Dalir 1,876 Reputation points
0 answers

How to fix the issue of Winform exited with Code 9009 in Visual Studio 2022?

Hi there, I have a legacy Windows Form Application and it's almost five years old. It's working very beautifully at the time of developing this and even after some years of developing this. But now in Visual Studio 2022 it's not working as expected. It's…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
C#
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.
10,900 questions
Visual Studio Debugging
Visual Studio Debugging
Visual Studio: A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.Debugging: The act or process of detecting, locating, and correcting logical or syntactical errors in a program or malfunctions in hardware. In hardware contexts, the term troubleshoot is the term more frequently used, especially if the problem is major.
998 questions
asked 2024-08-28T22:55:42.2433333+00:00
MERUN KUMAR MAITY 596 Reputation points
commented 2024-08-29T04:15:11.2233333+00:00
AAA AAA 0 Reputation points
6 answers

Toolbox has no items

Visual Studio 22 Windows Forms App has the following message in the Toolbox, "There are no usable controls in this group. Drag an item onto this text to add it to the toolbox." I have tried the reset toolbox and choosing items but neither…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
5,095 questions
asked 2022-01-05T11:35:59.977+00:00
cshermak 1 Reputation point
commented 2024-08-23T08:48:04.4833333+00:00
Dan Byne 0 Reputation points
1 answer

can possible dynamically add picturebox image into RDLC Report C# windows form

hi all can possible dynamically add picturebox image into RDLC Report C# windows form best regards

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2021-01-22T03:44:55+00:00
NazHim 201 Reputation points
commented 2024-08-21T13:23:11.86+00:00
Anonymous
5 answers One of the answers was accepted by the question author.

How To Post Question On social.msdn.microsoft.com?

I am trying to post on social.msdn.microsoft.com but every time I click on ask question it redirects me to learn.microsoft.com. Please help.

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2021-04-08T13:48:49.163+00:00
feddea cbrolleru 26 Reputation points
answered 2024-08-19T23:31:11.9533333+00:00
Sukaduduk 0 Reputation points
1 answer

how to use CoreWindow in winforms?

I want to use Direct2D and the link of CreateSwapChainFromCoreWindow says I should Use CreateSwapChainFromCoreWindow and If I use CreateSwapChainForHwnd I can not publish to microsoft store. so Can I use CoreWindow in winform?

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,833 questions
Windows API - Win32
Windows API - Win32
A core set of Windows application programming interfaces (APIs) for desktop and server applications. Previously known as Win32 API.
2,609 questions
asked 2024-08-18T00:09:10.34+00:00
mc 4,476 Reputation points
commented 2024-08-19T09:18:43.6233333+00:00
Darran Rowe 916 Reputation points
1 answer

How to copy current project & assign New Name ?

Hello & Thanks ; I have a current project named GetElementsByTagname and from it I would like to make a new project named GetElementsByTagname-Copy-01 . I want to try different versions of same code . Thanks for your Help...

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
asked 2020-08-28T17:03:25.297+00:00
vmars316 621 Reputation points
commented 2024-08-18T14:08:13.3+00:00
mc mike 0 Reputation points
5 answers

VISUAL STUDIO 2022 REPORT PROJECT ADDING EXTERNAL LIBRARIES PATH

i am trying to add my rdl files to new report project . the report has got calls to external assemblies for priting barcode, q.r.code on running the report i am getting error that assmbles can not be found i have copies them to bin\debug folder of…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,888 questions
SQL Server Reporting Services
SQL Server Reporting Services
A SQL Server technology that supports the creation, management, and delivery of both traditional, paper-oriented reports and interactive, web-based reports.
2,918 questions
asked 2023-12-23T03:00:08.09+00:00
Sushil Agarwal 406 Reputation points
answered 2024-08-09T17:34:37.72+00:00
Sushil Agarwal 406 Reputation points