MAUI Picker control, .net 9: the Unfocused event IMMEDIATELY follows the Focused event?
I'm using the MAUI Picker control (ComboBox) on .net 9, Windows, VS 2022 v17.13.6. When the Picker gets focus by the user clicking it, the Focused event fires, but it is immediately followed by the Unfocused event and the drop down list opens. If the…
Developer technologies | .NET | .NET MAUI
color connverter
I have a converter public class SelectedAvatarMultiValueConverter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { if(values.Length == 2 && …
Developer technologies | .NET | .NET MAUI
CORS Policy Blocking POST Request in ASP.NET Core Minimal API with IIS Express (GET Works)
I'm developing an ASP.NET Core Minimal API using Visual Studio 2022 and running it with IIS Express. While GET requests work as expected, POST requests are being blocked due to CORS policy. Access to XMLHttpRequest at 'https://localhost:44302/api/xxx'…
Developer technologies | ASP.NET | ASP.NET API
how to present ID3D11Texture2D using swapChain?
just set once RenderTargetView or present then release the rendertargetView and then again set the rendertarget view?OMSetRenderTargets or swapChain->GetBuffer?
Developer technologies | C++
Why is step into function is working but play has error in VBA?
I have a macro that converts PDF file into excel. For the first file, it works properly not until I encountered this error on the succeeding files: When I tried to check step into, the macro runs smoothly and converts all the PDF files to excel. While…
Developer technologies | Visual Basic for Applications
If a method declared with the async modifier returns a cached result or completes synchronously,
i could not understand so could i get an exmaple of cached result and syncronous completion of async method. following is the lines from https://learn.microsoft.com/en-us/dotnet/csharp/asynchronous-programming/async-scenarios "If a method…
Developer technologies | ASP.NET | ASP.NET Core

How to insert two or more different values under one column name based on parent PK?
Greetings experts, We are designing internal ballot system that will be used to elect members into various positions based on election types.
Developer technologies | VB
Bitlocker using win 32 api
I have created a function inside my agent to apply bitlocker on a drive using win api, even though the execution is completed successfully the drives are not getting locked using bitlocker
Developer technologies | C++
Creating a reusable form using C# custom "User Control"
I'm trying to create a layout / form that can be reused on other forms. I think I'm in the right to utilize a "User Control" (screen captures below). I populate the control with some components, save it, then try to bring it onto the main…
Developer technologies | Windows Forms

Publishing a .NET MAUI app fails with error message "You must include a valid app package manifest file named AppxManifest.xml in the source."
I'm trying to publish a .NET MAUI app. The source code contains a "Package.appxmanifest" file. When I try to publish, it fails with the following error messages: You must include a valid app package manifest file named AppxManifest.xml in…
Developer technologies | Universal Windows Platform (UWP)
Positioning UWP ContentDialog on top of AppWindow.
In UWP app , I have a AppWindow which is opened from the main window with the below code. var appWindow = await AppWindow.TryCreateAsync(); var frame = new…
Developer technologies | Universal Windows Platform (UWP)
How to connect GATT profile for classic bluetooth device?
I have bluetooth device that uses gatt profile, but it doesn't support ble connection i can succesfully connect to gatt profile on classic only device with android/ios/linux client. How can i use gatt services in classic bluetooth device on windows pc?
Developer technologies | Universal Windows Platform (UWP)
How to To Change Auto Navigation in a Modal?
I have a modal that previews my image products (originally i have a productgridcontainer that automatically circles through these image products for my customers to see the avilable products which i want it to be that way but i want the modal to be…
Developer technologies | ASP.NET | ASP.NET Core

Windows Task Scheduler: Scheduled Job Fails with Launch Failure Error (2147943726) When 'Do Not Store Password' is Checked.
I am registering task in Windows Task Scheduler with settings "Run whether user is logged on or not" and "Do not store password. The task will only have access to local computer resources." enabled. When task triggers it is failing…
Developer technologies | Universal Windows Platform (UWP)
UWP - https certification valiation issue
I am trying to call an https api on a payment device, it returns a certificate signed by intermediate CA and that signed by root CA. I have installed root CA in trusted store of windows, added capability in WPF manifest. It returns error - Partial chain…
Developer technologies | Universal Windows Platform (UWP)
ms-appinstaller protocol has been disabled.
Hi, I have a WPF application and a Windows Application Packaging Project. I use Publish -> Create App package -> Sideloading -> enable automatic updates package is created and we put the output entire folder on our website. when Win10 users…
Developer technologies | Universal Windows Platform (UWP)
I want to consume web api in operations authentication and authorization bu I'm getting this error. Can you help me ? thanks
Developer technologies | ASP.NET | ASP.NET Core
Resovle Dependency Injection in Custom AuthorizationHandler
I speding days try to implement Permission based authorization like this post: Permission-Based Authorization in ASP.NET Core: A Step-by-Step Guide - DEV Community with custom AuthorizationHandler and AuthorizationPolicyProvider. My issue is: after the…
Developer technologies | ASP.NET | ASP.NET Core
Activate AddressSanitizer in Qt6
Hi all, I'm developing in Qt c++ under Windows and try to use AddressSanitizer within QtCreator. According to this blog from 2021 (https://devblogs.microsoft.com/cppblog/address-sanitizer-for-msvc-now-generally-available/) it should be possible. When I…
Developer technologies | C++
Suspected Compromise Involving Microsoft Authenticator and Entra Activity
Reporting a suspected compromise involving: Microsoft Authenticator Silent appearance of Microsoft Entra ID-linked behavior Unauthorized device trust and token issuance across iOS and Windows platforms Critically, there was no explicit…