set VARAINT is not right?
I am using ms-media-foundation and want to set CODECAPI_AVLowLatencyMode VARIANT var{}; var.boolVal = VARIANT_TRUE; var.vt = VT_BOOL; error:WinRT originate error - 0x80070057 : 'Invalid argument (VT_UI4 != pValue->vt)' why?
Developer technologies | C++
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 upload and store files in database in blazor web app
How to upload and store files in database in blazor web app
Developer technologies | ASP.NET | Other
why ViewData is encoded for unicode text in asp.net web?
ViewData["Title"] ="xxxxxxxxxxx"; it is 首页 why?
Developer technologies | ASP.NET | ASP.NET Core
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++
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


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)
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
MAUI app crash when execute BindableLayout.SetItemsSource with visual studio 2022 17.14.7
After the command BindableLayout.SetItemsSource(FlexLayout, IEnumerable) in DEBUG environment and WinUI it gives the error: System.ArgumentOutOfRangeException in System.Private.CoreLib.dll Exception thrown: 'System.Reflection.TargetInvocationException'…
Developer technologies | .NET | .NET MAUI
Push Notification Icon Color Issue in .NET MAUI Local Notifications
I have implemented push notifications using LocalPushNotification in my .NET MAUI app. I'm setting the small icon using: .SetSmallIcon(Resource.Drawable.ic_push_notification_solid) The issue is that the icon is displayed in gray instead of its…
Developer technologies | .NET | .NET MAUI
LINQ how to sort column names
HI folks, I am retieving the column names from a datatable as follows. string[] columnNames = ds.Tables[0].Columns.Cast<DataColumn>() .Select(x => x.ColumnName) …
Developer technologies | C#
How to disable the ctrl+mousewheel zoom in WPF blazor hybrid app
I'm testing the WPF blazor hybrid app following the steps in this article: https://learn.microsoft.com/en-us/aspnet/core/blazor/hybrid/tutorials/wpf?view=aspnetcore-9.0. The code repo is here. After running the app, I find I can use ctrl+mousewheel…
Developer technologies | .NET | Blazor
After updating my Asp.Net Core MVC from .Net 6 to 8, the project property throws error.
Error.txt Recently, I have updated my ASP.NET Core MVC application from .NET 6 to 8. The VS 2022 Professional was also updated to version 17.14.7. After that, when I right-click my web project, which is also the startup project, it throws the error shown…
Developer technologies | ASP.NET | ASP.NET Core
OneWay Data Binding Between 2 Content Views not working
I've setup 2 ContentViews: NewContent1.xaml and ChildContentView.xaml using .NET 9. I've added <MauiEnableXamlCBindingWithSourceCompilation>true</MauiEnableXamlCBindingWithSourceCompilation> to my Project Properties. I'm binding a string…
Developer technologies | .NET | .NET MAUI
DataGridView DateTime Column type?
Hi experts In VB.net WinForms (.Net Framework 4.8) DataGridView Add/Edit Column > Column Type has these…
Developer technologies | Windows Forms
How do I fix this error?
argument list for class template "CUIAnimationCallbackBase" is missing template <class IUIAnimationCallback, class CUIAnimationCallbackDerived> class CUIAnimationCallbackBase : public IUIAnimationCallback { public: static…
Developer technologies | C++
How to fix Visual Studio 2022 17.5 Intellisense not working
Visual Studio 2022 Enterprise Edition version 17.5.1 Intellisense and snippets are not working
Developer technologies | Visual Studio | Other

alignment in chat app
I am doing a chat app with Maui, but I need help with alignment <ContentView x:Class="FireChat.Controls.ChatView" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" …
Developer technologies | .NET | .NET MAUI
How to change the image cshtml.
I am using several images on the home page of my project. The path of which is always using the same name. That is, even if the image changes, the image path remains the same. The problem is that when I upload the image for the first time, the correct…
Developer technologies | ASP.NET | ASP.NET Core
Can we prevent Narrator from speaking UI control's name?
Hello, I'm working on WinUI2 app with XAML island in purely C++ (no XAML code). I want to support Narrator screen reader for my app. I tried to set accessibility props (name and helpertext) for UI controls. While this props are being read by Narrator, it…