Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
749 questions
0 answers
How fix System.ArgumentNullException
L'erreur complet : System.ArgumentNullException HResult=0x80004003 Message=Value cannot be null. Arg_ParamName_Name Source=Microsoft.EntityFrameworkCore Arborescence des appels de procédure : à…
asked 2024-10-28T16:59:54.3833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 34%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECN%3C/text%3E%3C/svg%3E)
Christian Nahbi
0
Reputation points
commented 2024-10-29T21:43:41.79+00:00
Christian Nahbi
0
Reputation points
1 answer
One of the answers was accepted by the question author.
High RAM Usage with Custom Splash Screen in WPF (Code-Behind, .NET Core 6) - How to Reduce Memory Consumption?
I'm working on a WPF application using .NET Core 6 (Code-Behind, no MVVM) in Visual Studio 2022 on Windows 10. I've created a customized splash screen that displays a GIF on startup. The splash screen closes once the app has fully loaded. My problem is…
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,905 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.
2,783 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
5,176 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
asked 2024-10-23T02:45:31.8333333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(288, 43%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
Mojtaba_Hakim
321
Reputation points
edited the question 2024-10-28T02:14:46.39+00:00
Jack J Jun
24,516
Reputation points Microsoft Vendor
0 answers
Crash issue from Microsoft official Win32 C++ custom WinRT XAML control tutorial
Build was ok, but got a crash after following the official Microsoft official Win32 custom WinRT XAML control tutorial https://learn.microsoft.com/en-us/windows/apps/desktop/modernize/xaml-islands/host-custom-control-with-xaml-islands-cpp: Clicking…
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.
2,649 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.
3,755 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(57.599999999999994, 72%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
[UWP] Change Lottie Animation Color / Theme Dynamically
I have used lottie json animation in xaml uwp using "CommunityToolkit.WinUI.Lottie" and "AnimatedVisualPlayer". But for dark theme I can not see the lottie animation as the color is fixed. How can we dynamically change color of…
asked 2024-09-30T07:38:02.08+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 8%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMN%3C/text%3E%3C/svg%3E)
Md. Niaz Mahmud
131
Reputation points
accepted 2024-10-22T08:10:12.9866667+00:00
Md. Niaz Mahmud
131
Reputation points
1 answer
One of the answers was accepted by the question author.
How to build an application correctly in the WinUI3 project template?
I am working in the Blank App, Packaged (WinUI 3 in Desktop). When compiling and launching a new project in Visual Studio using the keyboard shortcut "Ctrl + F5", the application opens without problems. However, when building the project and…
asked 2024-10-15T14:33:58.7666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(230.39999999999998, 67%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERY%3C/text%3E%3C/svg%3E)
RΞY
20
Reputation points
edited an answer 2024-10-18T05:12:48.83+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 92%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERL%3C/text%3E%3C/svg%3E)
Roy Li - MSFT
33,371
Reputation points Microsoft Vendor
0 answers
How to Extend TextBox's Text Property to Show Binding Value in the Properties Window without XAML Updates?
I am working with WPF and trying to extend the functionality of a Text property in the Properties in the design mode in the TextBox, but I’m running into limitations with the Text property. Here’s what I want to achieve: In WPF, when Text has Binding,…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 61%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
WPF TextBox Style Customization: CaretBrush Disappeared After Trigger Setup
Seeking assistance with customizing the style properties of a TextBox in WPF: Background: MouseOver #505050 & not MouseOver #303030 Foreground: #FFFFFF BorderBrush: MouseOver #868686 & not MouseOver #666666 CaretBrush Despite setting up…
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.
2,783 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
asked 2024-10-06T11:49:55.66+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(272, 14.000000000000002%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
StreamingMoon
20
Reputation points
accepted 2024-10-07T03:45:22.84+00:00
StreamingMoon
20
Reputation points
3 answers
Editor controls in grid don't resize correctly after grid and row compressed to zero width and expanded back
Editor controls in a 3x3 grid don't resize correctly after compressing one of the rows and columns to 0 width and height and expanding it back to normal size. The bug is only present on the windows platform using Editor controls. Resizing works correctly…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(313.6, 1%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ET%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
search code does not execute (xaml page,pagemodel or MVVM )
I'm trying to add a search bar to my app, but can not get the code to execute. I've placed breakpoints in the pagemodel but they are tripped. Xaml: <SearchBar x:Name="searchBar" HorizontalOptions="Fill" …
.NET MAUI
.NET MAUI
A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
3,579 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(288, 8%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ET%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
How to flatten the XML
Hi have a complex XML structured as per attached below. How can I flatten the XML using XSLT? I have attached the expected sample flatten xml(expected_ouput_flat_oder_xml.xml) based on the complex xml(Order_xml.xml) I provided. I have tried using the…
asked 2024-07-03T09:51:20.1633333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 96%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
jn93
671
Reputation points
edited the question 2024-10-03T09:31:29.1833333+00:00
Jack J Jun
24,516
Reputation points Microsoft Vendor
3 answers
One of the answers was accepted by the question author.
How to create Custom Window Style in WPF [Drag Window]
Hi To All, How to create Custom Window Style in WPF with Drag-able window
asked 2021-09-30T08:50:08.393+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 24%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EXW%3C/text%3E%3C/svg%3E)
XAML WPF Developer
36
Reputation points
edited the question 2024-10-03T09:29:24.9333333+00:00
Jack J Jun
24,516
Reputation points Microsoft Vendor
0 answers
How to view all Visual Tree UI elements of any UI controls, Which is using styles & templates on windows 11 OS environment using VisualUIAVerifyNative tool?
VisualUIAVerifyNative is not displaying few UI elements If TextBox uses style, which has TextBlock as PlaceholderText, then the placeholder textblock UI element is not getting displayed in VisualUIAVerifyNative on windows 11 machine <Style…
asked 2024-09-11T12:08:30.5+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(166.4, 88%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKT%3C/text%3E%3C/svg%3E)
Kavitha T
0
Reputation points
commented 2024-10-02T08:33:32.41+00:00
Junjie Zhu - MSFT
18,391
Reputation points Microsoft Vendor
1 answer
UWP Windows.System.Launcher.LaunchUriAsync is not opening correctly in browser when the URI supports opening the link in other uwp app and browser.
Hi I'm using Windows.System.Launcher.LaunchUriAsync to open a URI, I'm prompted with a dialogue when the URI can be opened in other uwp app and browser. If chosen browser, it opens the local path - AppData/Local/Microsoft/Windows/INetCache instead of…
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,905 questions
Universal Windows Platform (UWP)
Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,967 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(304, 24%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
0 answers
How Can I call RuntimeHostConfigurationOption OnStartup of a WPF (C#) application in .NET 8?
Hi there, I have a WPF application where the UI is a very important thing and heart of the application. Due to some UI elements requirements I have some custom RuntimeHostConfigurationOption which I put in my WPF application through the *.csproj file. I…
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.
2,783 questions
JavaScript API
JavaScript API
An Office service that supports add-ins to interact with objects in Office client applications.
995 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
asked 2024-09-11T21:41:55.1+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 26%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMK%3C/text%3E%3C/svg%3E)
MERUN KUMAR MAITY
601
Reputation points
commented 2024-09-23T09:16:41.3433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(51.2, 62%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHY%3C/text%3E%3C/svg%3E)
Hongrui Yu-MSFT
2,465
Reputation points Microsoft Vendor
1 answer
is there any roundabouts for design tab in .net maui?
Hello, I'm just started to study .net maui but I stuck on UI design in .net maui project. In WPF project, I could use design tab to correct UI easily. but I can't use that in .net maui. is there anyone or site to teach how to design UI in .net maui…
asked 2024-09-16T13:26:12.72+00:00
c00012
741
Reputation points
commented 2024-09-23T01:01:29.3733333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(310.4, 6%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELL%3C/text%3E%3C/svg%3E)
Leon Lu (Shanghai Wicresoft Co,.Ltd.)
76,391
Reputation points Microsoft Vendor
1 answer
One of the answers was accepted by the question author.
Unable to make full screen splash in .NET MAUI
How can I make splash to display in full screen instead of just at the center of the mobile screen in .NET MAUI? I've tried different base sizes, but not working. Target android version up-to 13. <ItemGroup> <MauiSplashScreen…
.NET MAUI
.NET MAUI
A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
3,579 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
asked 2024-06-11T04:27:11.4933333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(73.60000000000001, 71%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMM%3C/text%3E%3C/svg%3E)
Md Mosabbir Alam
20
Reputation points
commented 2024-09-20T05:51:06.8+00:00
Md Mosabbir Alam
20
Reputation points
0 answers
UWP DataGrid Scrollbar Issue: Unable to Scroll Using Touch on Touch Screen Devices
I'm developing a UWP app and I'm utilizing the DataGrid control from Microsoft.Toolkit.Uwp.UI.Controls to display data. While I can scroll using the mouse using both the scrollbar and its buttons, on a touch screen device, I can only scroll via finger…
asked 2024-05-11T10:28:59+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(163.2, 78%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHR%3C/text%3E%3C/svg%3E)
Hardik Rathod
20
Reputation points
commented 2024-09-16T22:39:32.1066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(70.4, 32%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERB%3C/text%3E%3C/svg%3E)
Rathod, Bhavikkumar
0
Reputation points
0 answers
MVVM Issue
I have a DataTemplate defined thus: <DataTemplate x:Key="CopyColumnHeaderTemplate"> <StackPanel Orientation="Horizontal"> <Label Content="{Binding}"/> <CheckBox…
asked 2024-09-15T15:31:21.6166667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(208, 79%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDM%3C/text%3E%3C/svg%3E)
David McCallum
51
Reputation points
asked 2024-09-15T15:31:21.6166667+00:00
David McCallum
51
Reputation points
0 answers
UWP app flickering on ARM PC
Hi everyone. I have an UWP application and I'm running on a ARM PC. When I open a customized content dialog the screen starts blinking. Unfortunately, I cannot show the application nor the code, but do you guys know some cases that an ARM PC blinks…
asked 2024-08-23T12:29:55.17+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(316.8, 62%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAR%3C/text%3E%3C/svg%3E)
Anderson Rodrigues Cavalcante
316
Reputation points
commented 2024-08-29T00:58:43.6666667+00:00
Anderson Rodrigues Cavalcante
316
Reputation points
2 answers
Why do i get this error
When i start debugging and i press a NavigationMenuItem, i get this error (See Screenshot). the NavigationPages are in the folder NavigationMenu. Does anyone know how to fix this My code is MainPage.xaml …
Universal Windows Platform (UWP)
Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,967 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.
10,997 questions
XAML
XAML
A language based on Extensible Markup Language (XML) that enables developers to specify a hierarchy of objects with a set of properties and logic.
814 questions
Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
9,847 questions
asked 2024-08-17T19:58:33.26+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(288, 63%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWA%3C/text%3E%3C/svg%3E)
Wannes Aneca
0
Reputation points
commented 2024-08-27T09:19:54.2566667+00:00
Roy Li - MSFT
33,371
Reputation points Microsoft Vendor