Various .NET Core repos have switched their master branches
to "5.0", and will use 3.x branches for 3.0 and 3.1 projects. This is
very similar to how we approached 2.x and 3.0 projects. As context, master branches produced 3.0 builds for the entire period of the 2.2 project.
An Introduction to .NET MAUI For Mobile Development
.NET Multi-platform App UI (.NET MAUI) is a cross-platform framework for creating native mobile and desktop apps with C# and XAML.
.NET MAUI is open-source and is the evolution of Xamarin.Forms, extended from mobile to desktop scenarios, with UI controls rebuilt from the ground up for performance and extensibility. If you've previously used Xamarin.Forms to build cross-platform user interfaces, you'll notice many similarities with .NET MAUI. However, there are also some differences. Using .NET MAUI, you can create multi-platform apps using a single project, but you can add platform-specific source code and resources if necessary. One of the key aims of .NET MAUI is to enable you to implement as much of your app logic and UI layout as possible in a single code-base.
0:00 - Setup Visual Studio and MAUI Project
00:16:25 - Create MAUI Pages with C#
00:27:42 - Create MAUI Pages with XAML
00:32:28 - Explore MAUI Layouts
00:39:38 - Static Shared Resources
00:44:36 - Platform Specific Values
00:50:11 - Page Navigation
A .NET GIS solution that is fast and reliable for the .NET platform.
NetTopologySuite is a direct-port of all the functionalities offered by JTS Topology Suite: NTS expose JTS in a '.NET way', as example using Properties, Indexers etc...
عناوین برخی از امکانات و بهبود ها
namespace CS11Tests;
public static class NewLinesStringInterpolations
{
public static void Test()
{
var month = 8;
var season = $"The season is {month switch
{
>= 1 and <= 3 => "spring",
>= 4 and <= 6 => "summer",
>= 7 and <= 9 => "autumn",
10 or 11 or 12 => "winter",
_ => "Wrong month number",
}}.";
Console.WriteLine(season);
int[] numbers = { 1, 2, 3, 4, 5, 6 };
var message = $"The reversed even values of {nameof(numbers)} are {string.Join(", ",
numbers.Where(n => n % 2 == 0).Reverse())}.";
Console.WriteLine(message);
}
} CVE-2020-0602 ASP.NET Core Denial of Service Vulnerability
CVE-2020-0603 ASP.NET Core Remote Code Execution Vulnerability
CVE-2020-0605 .NET Core Remote Code Execution Vulnerability
CVE-2020-0606 .NET Core Remote Code Execution Vulnerability
Established leaders (in blue in the chart and including Java, C#, and JavaScript) which are "common in paying organisations and show a high demand globally". Followers (in green) such as PHP, Python, and Ruby were found to "pay on average the same salaries, although their is 50% less demand for them". Finally there are a group referred to as Niche (orange) which "show very low demand and salaries almost 60% lower".
var integerArray = new int[3]; var lastItem = integerArray[integerArray.Length - 1];
var integerList = integerArray.ToList(); integerList.Last();
var secondToLast = integerArray[integerArray.Length - 2];
var lastItem = integerArray[^1];
var words = new string[]
{
// index from start index from end
"The", // 0 ^9
"quick", // 1 ^8
"brown", // 2 ^7
"fox", // 3 ^6
"jumped", // 4 ^5
"over", // 5 ^4
"the", // 6 ^3
"lazy", // 7 ^2
"dog" // 8 ^1
}; // 9 (or words.Length) ^0 Console.WriteLine($"The last word is {words[words.Length - 1]}"); 
var index = new Index(value: 1, fromEnd: true); Index indexStruct = ^1; var indexShortHand = ^1;
int[] a = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
Console.WriteLine(a[a.Length – 2]); // will write 8 on console.
Console.WriteLine(a[^2]); // will write 8 on console.
Index i5 = 5;
Console.WriteLine(a[i5]); //will write 5 on console.
Index i2fromEnd = ^2;
Console.WriteLine(a[i2fromEnd]); // will write 8 on console. var numbers = Enumerable.Range(1, 10).ToArray();
var (start, end) = (1, 7); var length = end - start; // Using LINQ var subset1 = numbers.Skip(start).Take(length); // Or using Array.Copy var subset2 = new int[length]; Array.Copy(numbers, start, subset2, 0, length);
var myArray = new string[] { "Item1", "Item2", "Item3", "Item4", "Item5" }; var fromIndexToX = myArray[1..3]; // = [Item2, Item3]
var fromIndexToXFromTheEnd = myArray[1..^1]; // = [ "Item2", "Item3", "Item4" ]
var fromAnIndexToTheEnd = myArray[1..]; // = [ "Item2", "Item3", "Item4", "Item5" ]
var fromTheStartToAnIndex = myArray[..3]; // = [ "Item1", "Item2", "Item3" ]
var entireRange = myArray[..]; // = [ "Item1", "Item2", "Item3", "Item4", "Item5" ]
var myArray = new string[] { "Item1", "Item2", "Item3", "Item4", "Item5" };
for (int i = 1; i <= 3; i++)
{
Console.WriteLine(myArray[i]);
} foreach (var item in myArray[1..4]) // = [ "Item2", "Item3", "Item4" ]
{
Console.WriteLine(item);
} using System;
using System.Linq;
namespace ConsoleApp
{
class Program
{
private static readonly int[] _numbers = Enumerable.Range(1, 10).ToArray();
static void Main()
{
var skip2CharactersAndTake2Characters = _numbers[2..4]; // صرفنظر کردن از دو عنصر اول و سپس انتخاب دو عنصر
var skipFirstAndLastCharacter = _numbers[1..^1]; // صرفنظر کردن از دو عنصر اول و آخر
var last3Characters = _numbers[^3..]; // انتخاب بازه‌ای شامل سه عنصر آخر
var first4Characters = _numbers[0..4]; // دریافت بازه‌ای از 4 عنصر اول
var rangeStartFrom2 = _numbers[2..]; // دریافت بازه‌ای شروع شده از المان دوم تا آخر
var skipLast3Characters = _numbers[..^3]; // صرفنظر کردن از سه المان آخر
var rangeAll = _numbers[..]; // انتخاب کل بازه
}
}
} var range = new Range(1, 4); Range rangeStruct = 1..4; var rangeShortHand = 1..4;
using System;
using System.Linq;
namespace ConsoleApp
{
class Program
{
private static readonly int[] _numbers = Enumerable.Range(1, 10).ToArray();
static void Print(Range range) => Console.WriteLine($"{range} => {string.Join(", ", _numbers[range])}");
static void Main()
{
Print(1..3); // 1..3 => 2, 3
Print(..3); // 0..3 => 1, 2, 3
Print(3..); // 3..^0 => 4, 5, 6, 7, 8, 9, 10
Print(1..^1); // 1..^1 => 2, 3, 4, 5, 6, 7, 8, 9
Print(^2..^1); // ^2..^1 => 9
}
}
} Console.WriteLine("123456789"[1..4]); // Would output 234 var helloWorldStr = "Hello, World!"; var hello = helloWorldStr[..5]; Console.WriteLine(hello); // Output: Hello var world = helloWorldStr[7..]; Console.WriteLine(world); // Output: World! var world2 = helloWorldStr[^6..]; // Take the last 6 characters Console.WriteLine(world); // Output: World!
var arr = (new[] { 1, 4, 8, 11, 19, 31 }).AsSpan();
var range = arr[2..5];
ref int elt1 = ref range[1];
elt1 = -1;
int copiedElement = range[2];
copiedElement = -2;
Console.WriteLine($"range[1]: {range[1]}, range[2]: {range[2]}"); // output: range[1]: -1, range[2]: 19
Console.WriteLine($"arr[3]: {arr[3]}, arr[4]: {arr[4]}"); // output: arr[3]: -1, arr[4]: 19 Helper classes to set up and run as windows services directly on .net core. A ServiceBase alternative.
