c# Questions

Why missing $type when serialize generic with JsonDerivedType?

December 5, 2023
Melon NG
2 Answers

Here are my codes: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); Debug.WriteLine(JsonSerializer.Serialize<TestModel>(new TestModel() { Name = "123", Time = DateTime.Now })); Debug.WriteLine(JsonSerializer.Serialize<TestModelWithGeneric<int>>(new TestModelWithGeneric<int>() { Name = "123", Time = DateTime.Now ,Value=1})); Debug.WriteLine(JsonSerializer.Serialize<TestModelWithGeneric<string>>(new TestModelWithGeneric<string>() { Name =…

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Html – Save multiple checkbox value to database in ASP.NET Core MVC

December 5, 2023
ZNAXNOR
2 Answers

I am using checkboxes to save data in database. It can save only one value at a time. When multiple values are selected, it only stores the first selected value. I have Googled my problem. Multiple solutions suggested the use…

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Asp.net – ProtectedLocalStorage SetAsync hangs indefinitely on await

December 5, 2023
Paul Carlton
2 Answers

Problem ProtectedLocalStorage injected property hangs when trying to set a property. I was able to replicate with a default server Blazor app with the following code in the front page: @page "/" @using Microsoft.AspNetCore.Components.Server.ProtectedBrowserStorage <PageTitle>Index</PageTitle> <h1>Hello, world!</h1> Welcome to your…

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Visual Studio, docker container->container call: Connection Refused

December 5, 2023
Anders Juul
2 Answers

Edit: Problem reduced to appearing when changing from .Net6 to .Net8. Changing from .Net6 to .Net7 works fine. But why? I've tried to follow this tutorial. https://learn.microsoft.com/en-us/visualstudio/containers/tutorial-multicontainer?view=vs-2022 The have pushed their code to https://github.com/MicrosoftDocs/vs-tutorial-samples/tree/master/docker/ComposeSample I download and it works. I…

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Winform application – error on getting Azure secret from KeyVault "DefaultAzureCredential failed to retrieve a token from the included credentials."

December 5, 2023
Irshad Faras
2 Answers

I have winform application written in c#. I am trying to fetch azure secrets from Azure KeyVault. I have written below function to fetch the secret. private async Task<string> GetSecretFromAzureKV(string secretName) { try { var keyVaultName = "my-Keyvault-name"; var kvUri…

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Visual Studio Code – Conflict between ReSharper and GitHub Copilot Auto-completions both using Tab at the same time

December 5, 2023
grune02
2 Answers

I'm encountering an issue when using both ReSharper and GitHub Copilot in Visual Studio 2022. Both of these tools offer code suggestions, which is incredibly helpful, but they sometimes clash, leading to code that is unusable. When I start typing…

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Visual Studio Code – Returning a value from a Co-routine started via boost::asio::co_spawn

December 5, 2023
Mark
2 Answers

I have some asio code which is used for transferring a file from a client. This code is working correctly and is as follows: bool FileTransferBehaviour::ConnectAndTransferFile(const std::string& _sender, const std::string& _filePath, size_t _numBytes) { // use a coroutine to accept…

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Can not Update Columns by Sum, SQL Server, ASP.NET C#

December 4, 2023
Sarsmas Ahangari
2 Answers

I can not UPDATE my SQL Server column by SUM and selecting the two different IDs in to tables? Here is my code: protected void GridView1_SelectedIndexChanged1(object sender, GridViewSelectEventArgs e) { txt_ID.Text = GridView1.Rows[e.NewSelectedIndex].Cells[0].Text; } string ObjektID = txt_ID.Text; SqlConnection conn2…

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Troubleshooting .NET 6.0 Azure Function App with IronPdf on Azure

December 4, 2023
Harleyz
2 Answers

I'm encountering an issue with a .NET 6.0 (LTS) Azure Function App on Windows, using the elastic premium plan. My application runs locally but not on Azure. I'm following guidelines from IronSoftware on How to Run HTML to PDF with…

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Visual Studio Code – error C3856: 'RecursiveType': symbol is not a class template

December 4, 2023
Somnium
2 Answers

I am trying to create type with recursive template like std::tuple, unfortunately it does not compile, however I did it seemingly same way as in tuple source code. I am compiling with Visual Studio 2022 with -std:c++latest and getting error…

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