C# Right String Part

Implement the Right extension method. Right returns the rightmost part of a string.

Right is a custom extension method. It obtains the rightmost several characters of an input string. It returns them as a new string. The .NET Framework does not provide a Right method. We add one with extension method syntax.Extension Strings

First, this program implements the string type Right method using the extension method syntax. The Right method is called on a string instance. It internally returns a substring of the rightmost several characters.Substring

Then: Right(3) will return the final 3 characters in the string. Like other C# strings, the null character is not returned.

Here: The program introduces the Extensions static class. This is where the Right extension method is declared.

Info: Right() is a public static method, but the first parameter must use the "this" modifier before the type declaration.

Thus: The Main entry point can call the Right method we defined on any string type.

C# program that implements Right using System; static class Extensions { /// <summary> /// Get substring of specified number of characters on the right. /// </summary> public static string Right(this string value, int length) { return value.Substring(value.Length - length); } } class Program { static void Main() { const string value1 = "soft orange cat"; const string value2 = "PERLS"; string result1 = value1.Right(3); string result2 = value2.Right(1); Console.WriteLine(result1); Console.WriteLine(result2); } } Output cat S

The exceptions thrown by the Right extension are similar to those thrown by the Substring method. Substring will be the source of the exceptions. If we pass a number that is too large or the input string is null, we receive an exception.

Tip: You will need to check the string length before using Right if you may have undersized strings.

String Length

Summary. We implemented the string type Right method. Right returns a new string instance containing the specified number of characters starting from the final character index. The Right method is not built into the .NET string type.

And: This simple wrapper can provide a way to more effectively translate logic. It is similar to a Truncate method.

Truncate String

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C# Right String Part

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