Windows Presentation Foundation

1 answer

Understanding %temp%\.net Folder | WPF | Single File | Self Contained | WebView2

When developing a single file self-contained WPF application using .NET 8 that uses the WebView2 component, a folder is created under %temp%\.net while the application is running. What is the purpose of this folder, when and how is it created, and is it…

asked Mar 28, 2025, 9:27 a.m.

Theiss, Daniel 0

edited a comment Mar 31, 2025, 9:27 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

1 answer

Impact of Changing Framework Order in runtime.config.json on Application Stability

Description: I am working on a .NET 8 WPF application that undergoes obfuscation using SmartAssembly. During the build, runtime.config.json is generated automatically, but SmartAssembly picks WindowsBase.dll from Microsoft.NETCore.App instead of…

asked Mar 28, 2025, 9:11 a.m.

Subhabrata Sahoo 0

answered Mar 31, 2025, 7:56 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

1 answer

UI Slows Down When Listing Large Data (3000+ Records) in WPF Application

Hello, I am developing a library automation system using WPF and MVVM. My application contains more than 3000 book records, which I list using ICollectionView and ObservableCollection. However, while loading and displaying the data, the UI slows down…

asked Mar 21, 2025, 7:37 a.m.

fatih uyanık 220

commented Mar 31, 2025, 12:59 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

3 answers

WPF DataGrid resizing column causes extreme scrolling

I have found a behavior with the stock WPF DataGrid that I can't explain or prevent, but it feels like a bug. I am curious if anyone has run into this and what the fix or workaround is. Steps to Reproduce: When using a DataGrid with several columns…

asked Sep 22, 2020, 6:23 p.m.

Werth, Timothy R 21

answered Mar 30, 2025, 11:44 a.m.

CodingNinja 96

1 answer

How to control the Visibility property of a UserControl object dynamically using Binding property?

I am working on a .NET C# project to learn MVVM. I am struggling to control the Visibility property of a UserControl dynamically. The login screen (userView.xaml) is a small centralized box that has two userControl views named signInUC.xaml and …

asked Mar 27, 2025, 12:30 p.m.

Lakshmanan B 101

accepted Mar 28, 2025, 1:58 p.m.

Lakshmanan B 101

1 answer

How to reference global resources in user controls in wpf class library projects

I created a WPF class library, and then added a UserControl "Card.xaml", and a resource dictionary "GlobalRes.xaml", I hope to use the style resources in GlobalRes in the Card control. As shown…

asked Jun 21, 2024, 5:17 a.m.

HoWe Yu 81

commented Mar 28, 2025, 11:46 a.m.

Marcos Cordeiro Oliveira 0

1 answer

How to get the custom WPF dialog box in visual studio

I am using webview2 to display the page on the wpf dialog box initially the issue is there was visual studio icon that was coming by default on the top left I want to remove that icon so that I used WindowStyle="ToolWindow" due to this my…

asked Mar 20, 2025, 10:52 a.m.

Vasu Bansal 20

accepted Mar 27, 2025, 6:41 a.m.

Vasu Bansal 20

1 answer

Windows 11 22598.100 Tooltip problem with WPF apps

I'm finding that Tooltips in WPF V4.8 apps (and earlier versions) are not working in Windows 11 build 22598.100. They appear but then immediately disappear. It happens in all WPF based apps. Tooltips are ok in Winforms apps and also .NET 5.0 WPF apps are…

asked Apr 19, 2022, 2:18 p.m.

Andrew Jones 26

commented Mar 25, 2025, 5:33 a.m.

Raymond Wynn 0

1 answer

How to change Windows Lock Screen background without creating a UWP app?

I need to programmatically change the Windows Lock Screen background, but my application's logic is quite complex, and it can't be achieved using the built-in Windows functionalities. I know that it's possible to create a UWP app and use the…

asked Mar 21, 2025, 3:46 a.m.

Moying 0

commented Mar 24, 2025, 1:04 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

2 answers

How to number rows in dataGrid

Hello. I am using datagrid. Is it possible to make it possible for the user to add a combined row or with columns by clicking on the table? And how it is possible to make numbering of lines as an example? If a combined string is encountered, then the…

asked Apr 21, 2023, 7:46 p.m.

vitaminchik 486

answered Mar 22, 2025, 7:04 a.m.

Fei Nan 0

4 answers

Displaying Files of Unknown Types Stored in SQL Server Using C# WPF

I am developing a C# WPF application using .NET 6 in Visual Studio 2022, with a SQL Server 2008 R2 database. My database contains a table GRADE_CUST_GRP with a column GCPS of type image, where files of various types are stored without any file extension…

asked Feb 25, 2024, 12:17 p.m.

Mojtaba_Hakim 321

edited an answer Mar 21, 2025, 2:37 p.m.

TP 112.8K

1 answer

WPF PrintDialog: How to Enable and Detect Selected Page Print Feature?

Our WPF application targets .NET 4.8. The WPF application can generate run report which include 12 pages. run report allows print. So far there is no option, and it always prints all 12 pages. we like to add feature to allow select page numbers and only…

asked Mar 14, 2025, 6:51 p.m.

Jane Jie Chen 506

accepted Mar 21, 2025, 1:53 a.m.

Jane Jie Chen 506

2 answers

Unable to Type Korean Characters in WPF TextBox When changing the ReadOnly Property

We have a WPF application in which the culture is set to Korean. In the application, we have added the InkCanvas to the grid and a text box is added to the canvas. While adding the text box to the canvas, we set its ReadOnly property to true and to false…

asked Mar 18, 2025, 3:16 p.m.

Yathavakrishnan 20

commented Mar 21, 2025, 1:01 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

0 answers

WPF: Customizing WPF PrintDialog in Framework 4.8 to Add Input Box for Page Selection

Our WPF application targets .NET 4.8. The WPF application can generate run report which may include 12 pages. A run report allows print. So far there is no option, and it always prints all 12 pages. We like to add feature to allow select page numbers and…

asked Mar 18, 2025, 1:52 p.m.

Jane Jie Chen 506

commented Mar 19, 2025, 5:40 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

2 answers

Optimizing WPF Application Startup Time on Shared Network Drive

My team is facing an issue when publishing the application on a shared network drive. When an end user opens the program for the first time after starting their computer, it takes significantly longer compared to running it from the local C drive (18…

asked Jan 7, 2025, 3:15 a.m.

Knot 40

accepted Mar 18, 2025, 4:02 p.m.

Knot 40

1 answer

The keyboard inputs are not updating correctly in the hosted WinForms application

Hi, We are encountering an issue in a WPF application hosted within a WinForms application. The keyboard event is triggered correctly, but the values are not updating properly in the UI. Here’s the setup: Create a WinForms application with a user…

asked Feb 4, 2025, 9:07 a.m.

Yathavakrishnan 20

commented Mar 18, 2025, 2:16 p.m.

Yathavakrishnan 20

2 answers

Excel formatting issue in C#

Hi All, I have a WPF application in which I am exporting data to excel. I have merged some cells and added some data to it. After printing I observed some formatting issue where some of the text is cutted and missing: _excelApp = new…

asked Mar 2, 2025, 4:15 p.m.

Pratham Jain 281

edited the question Mar 18, 2025, 6:58 a.m.

Hongrui Yu-MSFT 5,170 Microsoft External Staff

1 answer

Restrict portions of an application - C# Wpf

Hi, i am making a c# wpf application that has several pages and i want to protect certain pages from being accessed by certain users. what would some good aproaches to doing this be? I would really appreciate your help.

asked Mar 1, 2025, 4:09 a.m.

alan smith 1

edited the question Mar 17, 2025, 2:07 p.m.

Jiale Xue - MSFT 49,586 Microsoft External Staff

1 answer

Announcing Control Changes for Screen Readers in My WPF Project?

Hello everyone, In my WPF project, I want to implement screen reader support, particularly in registration forms, for visually impaired users. My goal is to ensure that changes in controls (e.g., textboxes, comboboxes, checkboxes, etc.) and error…

asked Mar 4, 2025, 12:31 p.m.

fatih uyanık 220

edited the question Mar 17, 2025, 2:06 p.m.

Jiale Xue - MSFT 49,586 Microsoft External Staff

1 answer

WPF: Why BackgroundWorker.RunWorkerCompleted Event() throw an exception and main thread does not receive it?

Our WPF application targets .NET 4.8. The AbortableBackgroundWorkder class inherences from the BackgroundWorker class and used as following. there are two background workers: _protocolProcessorBackgroundWorker..DoWork() will call …

asked Mar 7, 2025, 8:07 p.m.

Jane Jie Chen 506

edited the question Mar 17, 2025, 2:05 p.m.

Jiale Xue - MSFT 49,586 Microsoft External Staff

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2,848 questions with Windows Presentation Foundation tags

Understanding %temp%\.net Folder | WPF | Single File | Self Contained | WebView2

Impact of Changing Framework Order in runtime.config.json on Application Stability

UI Slows Down When Listing Large Data (3000+ Records) in WPF Application

WPF DataGrid resizing column causes extreme scrolling

How to control the Visibility property of a UserControl object dynamically using Binding property?

How to reference global resources in user controls in wpf class library projects

How to get the custom WPF dialog box in visual studio

Windows 11 22598.100 Tooltip problem with WPF apps

How to change Windows Lock Screen background without creating a UWP app?

How to number rows in dataGrid

Displaying Files of Unknown Types Stored in SQL Server Using C# WPF

WPF PrintDialog: How to Enable and Detect Selected Page Print Feature?

Unable to Type Korean Characters in WPF TextBox When changing the ReadOnly Property

WPF: Customizing WPF PrintDialog in Framework 4.8 to Add Input Box for Page Selection

Optimizing WPF Application Startup Time on Shared Network Drive

The keyboard inputs are not updating correctly in the hosted WinForms application

Excel formatting issue in C#

Restrict portions of an application - C# Wpf

Announcing Control Changes for Screen Readers in My WPF Project?

WPF: Why BackgroundWorker.RunWorkerCompleted Event() throw an exception and main thread does not receive it?