Regular Expressions: Validate Name : Regular Expressions « Development « VB.Net

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VB.Net » Development » Regular Expressions Screenshots  Regular Expressions: Validate Name     Imports System.Text.RegularExpressions Imports System Public Class MainClass    Shared Sub Main()       If Not Regex.Match("asdfdsa", _          "^[A-Z][a-zA-Z]*$").Success Then          ' last name was incorrect          Console.WriteLine("Invalid Last Name")       End If   End Sub ' Main End Class                                    Related examples in the same category 1. Use Regular Expression to Validate Email address 2. Validate TextBox: cannot be empty 3. TextBox validation: validate in KeyPressed Event 4. Use Regular Expressions to parse IP address 5. Use Regex to separate strings 6. Use Regx.split to split string 7. Use Regex to match 8. Regular to parse time: 04:03:27 9. Regular Expressions Match 10. Use Regular Expressions to Split String 11. Demonstrating Class Regex 12. Regular Expressions: Validate Address 13. Regular Expressions: Validate City 14. Regular Expressions: Validate Zip Code 15. Regular Expressions: validate Phone Number 16. Using Regex method Replace: ^ 17. Using Regex method Replace: by another string 18. Using Regex method Replace:\w+ 19. Using Regex method Replace:First 3 digits replaced 20. Using Regex method Replace: String split at commas 21. Strip tags from HTML to create Text version of a web page 22. \w matches any word character. 23. (\w) matches a word character. This is the first capturing group. 24. \1 match the value of the first capture. 25. \s matches any white-space character. 26. \b: Begin the match at a word boundary. 27. \w+: Match one or more word characters. 28. (e)*: Match an "e" either zero or one time. 29. (\s|$) Match either a whitespace character or the end of the input string. 30. ^: Begin the match at the beginning of the input string. 31. \D: Match a non-digit character. 32. \d{1,5} Matches from one to five decimal digits. 33. \D* matches zero or one non-decimal character. 34. $ Matches the end of the input string. 35. \S matches any non-white-space character. 36. \b: Begin the match at a word boundary. 37. (\S+): matches one or more non-white-space characters. This is the first capturing group. 38. \s*: matches zero or one white-space character. 39. Regular expression for class and group 40. Decimal Digit Character: \d 41. Parse Link and Image tags in a HTML file 42. Parse Image tags in a HTML file