The System.Char.IsLetter method is a part of the C# System library and is used to determine whether the specified Unicode character is categorized as a letter. This method can be used to validate strings or characters entered by the user, ensuring that they only contain letters.
Code Examples: 1. Checking if a character is a letter: char c = 'a'; bool isLetter = Char.IsLetter(c); //Outputs 'True'
2. Validating a string to ensure it only contains letters: string str = "abc123"; bool containsNonLetters = str.Any(c => !Char.IsLetter(c)); //Outputs 'True'
The package/library where the Char.IsLetter method belongs is: System.Globalization.
C# (CSharp) System Char.IsLetter - 22 examples found. These are the top rated real world C# (CSharp) examples of System.Char.IsLetter extracted from open source projects. You can rate examples to help us improve the quality of examples.