1,918 questions with Windows Forms tags

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windows.opener() handling with WebView2

In the webform, I have used window.opener for opening a new window that acted as a dialog which required user input, and needed to pass information back to the main window. I am trying to embed this in winform using WebView2 control.The…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
Universal Windows Platform (UWP)
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.
11,189 questions
asked 2025-01-13T06:37:06.7133333+00:00
Neha 20 Reputation points
commented 2025-01-13T10:52:18.6233333+00:00
Neha 20 Reputation points
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 zcusa.951200.xyz. Please help.

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
asked 2021-04-08T13:48:49.163+00:00
feddea cbrolleru 26 Reputation points
edited the question 2025-01-13T10:46:32.96+00:00
TP 101.3K Reputation points
1 answer

Concern About Windows 24H2 Issue

Sir, I have some questions about this iso'sWindowss 11 Iot loss, Windows Server 2022 and Windows Server 2025(24H2) Which one isn't any issue at this moment? How can I make multiple iso bootable pendrive without any other software?

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 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.
5,703 questions
Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
13,539 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,881 questions
Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
10,417 questions
asked 2025-01-13T07:44:33.7666667+00:00
Officer Radif 0 Reputation points
answered 2025-01-13T10:16:45.7033333+00:00
Tasadduq Burney 8,681 Reputation points MVP
1 answer One of the answers was accepted by the question author.

Close and then open a new tab page or window asks authentication

I am trying to embed a webform application in WinForm using Webview2 control. The new window opens in a tab page with webview2 child ( e.handled=true). But when destroying the child tab wm_destroy is not calling properly. so each time while open a new…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 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.
5,703 questions
Universal Windows Platform (UWP)
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.
11,189 questions
asked 2025-01-11T04:26:32.7333333+00:00
Neha 20 Reputation points
accepted 2025-01-13T02:00:16.2866667+00:00
Neha 20 Reputation points
2 answers One of the answers was accepted by the question author.

visual studio windows form call error

when i try to add windows form to my project , it outputs errors i make clr empty project .net framework Instances of this error (1) Hide Call Stack at Microsoft.VisualStudio.Designer.Interfaces.IVSMDCodeDomProvider.get_CodeDomProvider() …

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
C++
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.
3,821 questions
asked 2021-04-26T10:43:01.043+00:00
shams 21 Reputation points
commented 2025-01-03T10:50:28.1133333+00:00
Giovanni Arzedi 0 Reputation points
2 answers

How do I make a richTextBox have a transparent background / show the image beneath it? (C#, Windows Forms App)

Hello, as per the title, I want to make the richTextBox in my project transparent, or have a way to show the image beneath it. Whenever I try to set the backcolor to transparent, i always get "Property value is not valid" with "Control…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 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.
11,189 questions
asked 2024-12-27T06:00:17.44+00:00
dorian tester 0 Reputation points
edited the question 2025-01-02T02:52:02.77+00:00
Tianyu Sun-MSFT 32,141 Reputation points Microsoft Vendor
2 answers

Advice on Signing and Certificate Options for a WPF Project

Hi, I have a WPF project based in Dublin, initially intended for approximately 100 users in Ireland, with plans to expand both inside and outside the EU over the long term. The business was established in September 2022. I’d like advice on the best…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
Windows Presentation Foundation
Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
2,808 questions
Azure Trusted Signing
Azure Trusted Signing
Trusted Signing is a Microsoft fully managed, end-to-end signing solution that simplifies the certificate signing process and helps partner developers more easily build and distribute applications.
141 questions
asked 2024-12-21T17:48:00.1666667+00:00
Mustafa Walid 0 Reputation points
answered 2024-12-26T22:09:36.44+00:00
Ken Tucker 5,856 Reputation points
1 answer

Visual Studio 2019 Crashes When Closing Windows Form in Design View

Maintaining a Windows Forms application in Visual Studio 2019 (version 16.11.42) that uses Janus controls. Recently, there is a form within the application that when opened in design view indicates there are changes as soon as it is opened. Closing and…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
5,343 questions
asked 2024-12-12T20:49:16.4+00:00
Euris 0 Reputation points
commented 2024-12-24T07:05:11.7633333+00:00
Anna Xiu-MSFT 30,561 Reputation points Microsoft Vendor
1 answer

Testing a Windows Form @ design time

Hi All, When you're working on a dialog under the resource view for a Windows Desktop Application/C++ you can any time test your dialog at design time simply clicking Ctrl+T. There is no need to build the project and run it. I tried to find…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
asked 2022-11-09T20:43:56.423+00:00
C V 46 Reputation points
commented 2024-12-23T16:22:22.96+00:00
Marton Bardos 0 Reputation points
2 answers

How to Append Data to a Text File in a Windows Forms Application?

In a Windows Forms application, data is read from a text file and displayed in a list box. The goal is to add a new item from a textbox to the same text file when a button is pressed, but the item is not being appended to the file as expected. The button…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 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.
11,189 questions
asked 2024-12-21T19:15:40.1266667+00:00
Cenk 1,021 Reputation points
answered 2024-12-23T11:16:33.8466667+00:00
Karen Payne MVP 35,466 Reputation points
2 answers

Visual Studio 2022 WinForm Designer throws 'Object reference not set to an instance of an object' exception when loading child Winform Window

Hi all, I have a C# project in .Net Framework 4.8 with WinForm as UI. I use upgrade assistent to convert the project from .Net Framework 4.8 to .Net 6.0. The project is able to compile an execute and run. However, when I try to open the WinForm in…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
5,343 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.
11,189 questions
asked 2023-04-28T10:39:42.7766667+00:00
KaLun Leung 0 Reputation points
answered 2024-12-21T21:34:42.8066667+00:00
reasra 0 Reputation points
2 answers One of the answers was accepted by the question author.

visual C# windows form project, cannot assign to a "using variable"

Hi, this code I want to identify the ID of the PC (processor + motherboard), so that I can use later for the database of the users. Here code: using (ManagementObjectCollection objectList = null) { ManagementObjectSearcher objectSearcher = new…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 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.
11,189 questions
asked 2024-12-17T21:21:39.8366667+00:00
Gennady Gurin 81 Reputation points
accepted 2024-12-19T23:40:43.94+00:00
Gennady Gurin 81 Reputation points
1 answer One of the answers was accepted by the question author.

Windows Form Project c#, checking if Key exist in Registry

Hi, I tried various things does not seem to work if key does not exist it gives exceptional error, but if it does it works. Here Code: private void Form1_Load(object sender, EventArgs e) {        RegistryKey Key =…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 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.
11,189 questions
asked 2024-12-12T23:44:37.34+00:00
Gennady Gurin 81 Reputation points
commented 2024-12-15T01:54:03.4633333+00:00
Gennady Gurin 81 Reputation points
2 answers One of the answers was accepted by the question author.

Creating and displaying forms in VS 2022 Community 17.12.3

Hello I reopen under VS 2022 Community 17.12.3 an old WinForm application developed by me under VS 2010, which targets .Net Framework 4.0. Under VS 2022 it now targets .Net Framework 4.8.1. The compilation is Ok and I start the execution (in Debug and…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
5,343 questions
asked 2024-12-12T16:35:14.8133333+00:00
Amyco 35 40 Reputation points
commented 2024-12-13T17:14:50.0033333+00:00
Amyco 35 40 Reputation points
2 answers

Exception when using Firebase streaming

Hi, When I try to read data from Firebase using FirebaseDatabase.net Library I receive Newtonsoft.Json.JsonReaderException exeptionn this code works Imports Firebase.Database Imports Firebase.Database.Query Public Class Form1 Private Async Sub…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
2,764 questions
asked 2024-10-18T05:54:17.3033333+00:00
Yusuf-3141 50 Reputation points
edited the question 2024-12-13T12:18:35.1866667+00:00
TP 101.3K Reputation points
3 answers

i am getting this error

please give me some solution for SqlConnection, SqlCommand and Clear ()

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
4,038 questions
SQL Server
SQL Server
A family of Microsoft relational database management and analysis systems for e-commerce, line-of-business, and data warehousing solutions.
14,284 questions
VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
2,764 questions
asked 2024-11-30T11:08:29.9066667+00:00
sayali dhanawade 20 Reputation points
edited the question 2024-12-06T06:28:48.6433333+00:00
Zhi Lv - MSFT 32,831 Reputation points Microsoft Vendor
1 answer One of the answers was accepted by the question author.

DataGridView column alignment header vs data

In the pic below, the DataGridView column header (Column1) is misaligned with the data cell text below it (XXX). The misalignment is nearly one character width. It is more visually obvious with a larger font. The pic comes from a minimal Forms app. …

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
4,038 questions
VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
2,764 questions
asked 2024-05-23T15:21:45.1333333+00:00
Andrew Mercer 486 Reputation points
edited a comment 2024-12-05T18:23:27.83+00:00
Dessert Bar 5 Reputation points
1 answer One of the answers was accepted by the question author.

How to enable TCP protocol of SQL Server Express 2019 through C# code?

I have MS SQLExpress 2019 installed in Windows 11 desktop. I want to enable SQLExpress TCP protocol programmatically from Windows Application using c#. So, I have written following simple code. using…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
4,038 questions
SQL Server
SQL Server
A family of Microsoft relational database management and analysis systems for e-commerce, line-of-business, and data warehousing solutions.
14,284 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.
11,189 questions
PowerShell
PowerShell
A family of Microsoft task automation and configuration management frameworks consisting of a command-line shell and associated scripting language.
2,730 questions
asked 2024-12-04T07:17:35.38+00:00
Anoop Choudhary 20 Reputation points
accepted 2024-12-05T13:17:04.8633333+00:00
Anoop Choudhary 20 Reputation points
0 answers

'Form5' does not contain a definition for 'radioButton13' and no accessible extension method 'radioButton13' accepting a first argument of type 'Form5' could be found (are you missing a using directive or an assembly reference?)

how can i solve this to prevent me from creating a whole new windows form

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
asked 2024-11-30T09:41:51.14+00:00
sameer ishfaq 0 Reputation points
commented 2024-12-05T09:49:47.97+00:00
Jiale Xue - MSFT 48,686 Reputation points Microsoft Vendor
1 answer

4.6.1 migrating to .Net Core 7 – How do I resolve error MC1000- cannot find type System.Management.Instrumentation.InstrumentedAttribute in Assembly ..path \.nuget\packages\system.management\7.0.0\lib\net6.0\SystemManagement.dll – Microsoft.WinFx.Targets

I am migrating a .netFramework 4.6.1 application to core. I have been able to get rid of all of the build errors except this one: Error MC1000 Unknown build error, 'Could not find type 'System.Management.Instrumentation.InstrumentedAttribute' in…

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,918 questions
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
770 questions
asked 2022-11-29T01:11:01.337+00:00
Dozier, Fletcher [US] (DS) 1 Reputation point
edited the question 2024-12-04T16:56:46.72+00:00
simo-k 1,755 Reputation points