The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable.  Please review the following URL and make sure that it is spelled correctly.
Requested URL: /Service/1/ewr/

public static void RegisterRoutes(RouteCollection routes)
{
   routes.MapPageRoute( "Service" ,  "Service/{ID}/{ProductTitle}" ,  "~/Service.aspx" );
}

void Application_Start( object sender, EventArgs e)
{
   RegisterRoutes(RouteTable.Routes); 
}

protected void LinqDataSource1_Selecting( object sender, LinqDataSourceSelectEventArgs e)
{
   int ID =  int .Parse(Page.RouteData.Values[ "ID" ].ToString());
   e.Result = db.Product.Where(p => p.ProductID == ID).FirstOrDefault(); 
}

update-package T4MVC -Reinstall -ProjectName Decision.Web
update-package Microsoft.AspNet.Mvc -ProjectName Decision.Web
update-package Microsoft.Web.Infrastructure -ProjectName Decision.Web
Install-Package RazorGenerator.Mvc
Enable-RazorGenerator
Redo-RazorGenerator

Performance counters are really important for monitoring and troubleshooting problems with your .NET applications. The full .NET Framework provides a wide array of performance counters that are very useful for troubleshooting application problems. 

Fixed In This Release of Visual Studio 2019 version 16.5

• Team Explorer not loading after update to mandatory latest visual studio version for Visual studio 2019
• Find Highlighting Fails when Matching with Match Case Disabled and Regex Option Enabled

Security Advisory Notice

CVE-2020-1108 .NET Core Denial of Service Vulnerability

A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core application. The security update addresses the vulnerability by correcting how the .NET Core web application handles web requests.

CVE-2020-1161 .NET Core Denial of Service Vulnerability

A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The security update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests. 

As of April 1, 2020 Log4Net is a dormant project of Apache Logging Services. The dormant status means the project has been classified as inactive since it has had no recent development activity and there are no active volunteers to perform code reviews, commit code, or perform releases. Although it is possible volunteers might choose to participate in the future, it is best to assume there will be not future development or releases. 

https://github.com/apache/logging-log4net 

In this post I described the problem that by default, DataAnnotation validation doesn't recursively inspect all properties in an object for DataAnnotation attributes. There are several solutions to this problem, but in this post I used the MiniValidation library from Damian Edwards. This simple library provides a convenience wrapper around DataAnnotation validation, as well as providing features like recursive validation. Finally I showed how you can replace the built-in DataAnnotation validation with a MiniValidation-based validator

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOptions<MySettings>()
    .BindConfiguration("MySettings")
    .ValidateMiniValidation() // 👈 Replace with mini validation
    .ValidateOnStart();

var app = builder.Build();

OptionsValidationException: 
  DataAnnotation validation failed for 'MySettings' member: 'Nested.Value' with errors: 'The Value field is required.'.; 
  DataAnnotation validation failed for 'MySettings' member: 'Nested.Count' with errors: 'The field Count must be between 1 and 100.'.
Microsoft.Extensions.Options.OptionsFactory<TOptions>.Create(string name)
Microsoft.Extensions.Options.OptionsMonitor<TOptions>+<>c__DisplayClass10_0.<Get>b__0()

C# can be developed and run on more and more platforms, and thanks to the "Roslyn" language engine you can increasingly make your own tooling for it. C# 7 embraces several new features for working better with data, such as tuples and pattern matching. Come see how you can start using C# 7 today! 

PowerShell 7 now utilizes .NET Core 3.1, but keeps backward compatibility with modules previously available for the classic PowerShell product. Also, PowerShell introduces a new argument, -UseWindowsPowerShell, to force run a cmdlet under the classic engine.