The move of the WEB from server based pages to Client based pages can create a security problem if we don't modify our traditional form to report errors.

.NET-Core3.1

.NET

error-handling

errors

Fixes to LINQ to SQL Explicit Client Evaluation which Causes Poor Performance

25 Dec 2021 by scott_liu

Entity Framework Core client evaluation was disabled by default since version 3.0 because of performance.

How Does the Application settings in Core 3.1 Work in a Multi-environment Scenario

14 Mar 2021 by freedeveloper

Managing multiple environments is a very common situation in software development in the enterprise

How to Create an ASP.NET Core API Project with Page Rendering, TypeScript, and "require"

10 Apr 2021 by Marc Clifton

Set up an ASP.NET Core API project, with TypeScript and "require" to render pages and and load JavaScript files in the browser.

How can I create custom attribute like [frombody] in ASP net core?

2 Dec 2020 by raddevus

You are seeing the result of the Decorator pattern (ability to add those attributes). So you have to read a bit about that pattern. Try this article which explains it more in depth: Adding decorated classes to the ASP.NET Core DI container using...

.NET-Core3.1

ASP.NET

How can I create custom attribute like [frombody] in ASP net core?

2 Dec 2020 by Richard Deeming

The ASP.NET Core source code is available on Git Hub. You can look at the existing attributes to see how they are implemented. For example: aspnetcore/FromQueryAttribute.cs at master · dotnet/aspnetcore · GitHub[^] The attributes seem to use...

.NET-Core3.1

ASP.NET

How can I create custom attribute like [frombody] in ASP net core?

18 Feb 2021 by Arsen Mkrtchyan

I know this is 1Y old question, but actually not answered Parameter Binding in ASP.NET Web API - ASP.NET 4.x | Microsoft Docs[^] This url explain how to do that, actually you need to inherit from HttpParameterBinding attribute, and implement...

.NET-Core3.1

ASP.NET

How can I create custom attribute like [frombody] in ASP net core?

18 Feb 2021 by csrss

Or for instance, [FromForm]string values . I want to write my own, [FromSomething]. What I have tried: Searched on the net, but could not find any information how to do that.

.NET-Core3.1

ASP.NET

How can I create custom attribute like [frombody] in ASP net core?

2 Dec 2020 by BabyYoda

I googled "c# custom attribute" and the first result appears to have the answer, Creating Custom Attributes (C#) | Microsoft Docs[^]

.NET-Core3.1

ASP.NET

Not able to display calendar using propeller datetimepicker

14 Dec 2020 by Priya-Kiko

I tried mailing support@propeller.in and was not able to get a response on time. So I searched around and came across Customizable jQuery Timepicker Plugin - timepicker | Free jQuery Plugins[^] which is customizable. So dropped Propeller and...

.NET-Core3.1

bootstrap

MVC

Get signalr connectionid outside of hub

24 Jan 2021 by sasko1

Hi! I am trying to make something like customer service chat with signalr. I am able to use signalr to send message to every client but struggle with getting connectionID value anywhere outside of ChatHub so i could send to induvidual clients. ...

Get signalr connectionid outside of hub

22 Jan 2021 by Christian Graus

Clearly you need to write the getconnectionid method, in order to take a value on your server, and share it with clients. Are you trying to create a group chat or connection? I am not sure you can just share an id and add someone to a session?

Get signalr connectionid outside of hub

24 Jan 2021 by sasko1

I solved it like this connection.start().then(function () { connection.invoke('GetConnectionId') .then(function (connectionId) { //alert(connectionId); })

Prevent user from losing data they entered into a dotnet core 3.1 MVC view if their authorization expires

28 May 2021 by Robert Woodard

I have not had a lot of experience with DotNet Core. We have created a Portal for our users utilizing DotNet Core 3.1. I am just throwing this out there to get ideas on how to handle this if it is possible: In the portal we have a View where...

.net core paypal: client authentication failed

28 Jul 2021 by Moojc

I'm starting to use PayPal for payments with .net Core. I created a sandbox app and checked client id and secret. I get an error at content "{"error":"invalid_client","error_description":"Client Authentication failed"}" Code: private...

.NET-Core3.1

PayPal

.net core paypal: client authentication failed

27 Jul 2021 by SeeSharp2

I would suggest you contact paypal. You are either not including something, like a certificate, or the credentials you have are wrong.

.NET-Core3.1

PayPal

.net core paypal: client authentication failed

28 Jul 2021 by Richard Deeming

Quote: $"{_configuration["PayPal:clientId"]} : {_configuration["PayPal:secret"]}" You're adding a space to the end of your client ID, and a space at the start of your secret. Instead of sending: xxx:xxx you're sending: xxx : xxx ...

.NET-Core3.1

PayPal

How I Start any .NET Core Web API Project

1 Aug 2021 by Marc Clifton

This is the typical process that I go through when creating a new Web API project in .NET Core 3.1.

.NET-Core3.1

.NET

Dev

Using WM_POWER Events to Monitor a UPS

2 Dec 2021 by klinkenbecker

Shows how to monitor a UPS, graph the details and shutdown the system

A Simple Key-Value Store Microservice

26 Jun 2021 by Marc Clifton

I have a very specific use-case where I need a microservice that manages a simple in memory data store, which I call a "bucket."

.NET-Core3.1

.NET

Dev

Get Elements of a Known Folder with Windows API for w10

23 May 2021 by Duc Axenn

Get elements of known folder with the most recent API

.NET-Core3.1

.NET5

.NET

A FluentMigrator Controller and Service for .NET Core

5 Feb 2022 by Marc Clifton

Manage your database migrations with web API endpoints

How do I get past Microsoft CORS calling a web API from angular with identityserver as the token provider?

27 Oct 2021 by Ger Hayden

I'm having an issue getting past Microsoft.AspNetCore.Cors.Infrastructure.CorsService with an API call from Angular 12, I've tried both Mirosoft and IdentityServer4 examples to allow CORS - both are included in the Startup.cs here. The token is...

.NET-Core3.1

Angular12

identity-server-4