I commonly hear the phrase “The web application worked in the pre-production environment and now is encountering issues in production and the server’s configuration are identical!” when I appear onsite to help assist with the resolution of the issues. Upon further investigation, an IIS module has not been installed on the production server, or the configuration is different for an application pool setting between the pre-production and production environments. This is a very common scenario I encounter in the field and here are some suggestions on how to determine differences between IIS servers in an IIS farm environment or between servers in different environments, such as pre-production and production. Keeping server configuration and content synchronized is always a challenge and I hope these suggestions help out.
معرفی Dotnet-Monitor
When running a dotnet application differences in diverse local and production environments can make collecting diagnostics artifacts (e.g., logs, traces, process dumps) challenging. dotnet-monitor
aims to simplify the process by exposing a consistent REST API regardless of where your application is run.
NET 5. چه مفهومی را به همراه دارد؟
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.
تنظیمات مورد نیاز جهت شروع به کار با C# 9.0
مثال 1: نوع <IEnumerator<T با حلقهی foreach سازگار نیست
public interface IEnumerator<out T> : IEnumerator, IDisposable { // // Summary: // Gets the element in the collection at the current position of the enumerator. // // Returns: // The element in the collection at the current position of the enumerator. T Current { get; } }
Error CS1579 foreach statement cannot operate on variables of type ‘IEnumerator’ because ‘IEnumerator’ does not contain a public instance or extension definition for ‘GetEnumerator’
static class Extensions { public static IEnumerator<T> GetEnumerator<T>(this IEnumerator<T> enumerator) => enumerator; }
اکنون حلقهی foreach را میتوان بر روی نوعهای <IEnumerator<T نیز بکار گرفت:
class Program { void Main() { var enumerator = Enumerable.Range(0, 10).GetEnumerator(); foreach (var item in enumerator) { Console.WriteLine(item); } } }
این نکته بر روی نمونهی async آن نیز قابل اعمال است که مثالی از آنرا در ادامه مشاهده میکنید:
static class Extensions { public static IAsyncEnumerator<T> GetAsyncEnumerator<T>(this IAsyncEnumerator<T> enumerator) => enumerator; } class Program { static async Task Main() { var enumerator = GetAsyncEnumerator(); await foreach (var item in enumerator) { Console.WriteLine(item); } } static async IAsyncEnumerator<int> GetAsyncEnumerator() { yield return 0; await Task.Delay(1); yield return 1; } }
مثال زیر را درنظر بگیرید:
class Program { static void Main() { foreach (var item in (1, 2, 3)) { Console.WriteLine(item); } } }
foreach statement cannot operate on variables of type '(int, int, int)' because '(int, int, int)' does not contain a public instance or extension definition for 'GetEnumerator' [CS9Features]csharp(CS1579)
static class Extensions { public static IEnumerator<object> GetEnumerator<T1, T2, T3>(this ValueTuple<T1, T2, T3> tuple) { yield return tuple.Item1; yield return tuple.Item2; } }
This is an initial release of a partial implementation of the .NET platform on top of the Java Virtual Machine, and compatible with Android runtime. The Bluebonnet bytecode compiler translates .NET CIL into Java bytecode in Java classes, and additional run-time support is provided by the Baselib library.