A string that must be exactly one name and another that must be exactly zero or one name

by

For FirstName and LastName you can split on ' ' and see that the count is 1.

bool valid = fn.Split(' ').Length == 1

And for the MiddleName let it be also null or empty:

bool valid = string.InNullOrEmpty(mn) || mn.Split(' ').Length == 1

You can add .Trim if you think a space slipped into one of the names in the beginning or end.

bool validFN = fn.Trim().Split(' ').Length == 1
bool validMN = string.InNullOrEmpty(mn) || mn.Trim().Split(' ').Length == 1

More Related Contents:

  1. SqlConnection.Open throwing exception C#
  2. Should ‘using’ directives be inside or outside the namespace?
  3. What’s the difference between Invoke() and BeginInvoke()
  4. Benefits of using the conditional ?: (ternary) operator
  5. Type or namespace name does not exist [closed]
  6. Why can’t I inherit static classes?
  7. When should “SqlDbType” and “size” be used when adding SqlCommand Parameters?
  8. Generating DLL assembly dynamically at run time
  9. ‘do…while’ vs. ‘while’
  10. What does “DateTime?” mean in C#?
  11. File I/O with streams – best memory buffer size
  12. What does “var” mean in C#? [duplicate]
  13. Instantiate an object with a runtime-determined type
  14. How to convert Json array to list of objects in c#
  15. When using .net MVC RadioButtonFor(), how do you group so only one selection can be made?
  16. C# Speech Recognition – Is this what the user said?
  17. WCF – Design Parameter Decision
  18. NuGet Package Manager: ‘AutoMapper’ already has a dependency defined for ‘Microsoft.CSharp’
  19. How do I set a default User Agent on an HttpClient?
  20. How can I get URLs of open pages from Chrome and Firefox?
  21. Best ways to split a string with matching curly braces
  22. Leverage browser caching in IIS (google pagespeed issue)
  23. How to hide cmd window while running a batch file?
  24. Options for using System.Data.SQLite in a 32bit and 64bit C# world
  25. Get the exact time for a remote server
  26. AngularJS Web Api AntiForgeryToken CSRF
  27. Why does “\n” give a new line on Windows?
  28. How to get CPU frequency in c#
  29. Why can’t I modify the loop variable in a foreach?
  30. Drawing control to memory (Bitmap)

Leave a Comment