c# - regex for interval of years -

In C #, I want to write a regular expression that will accept years between 1900 and 2099 only.

I tried ^ ([1] [9] \ d \ d | [2] [0] \ d \ d) $ , but it does not work . Any ideas?

Then I have a class:

  [NotNullValidator (MessageTemplate = "Lipseasena little! Do not drink!")] // [Rangelavidetter (1900, rangeboundary type ), 2100, rangeboundary type. Unique, Message Template = "Ancel Trebui Sa Contina 4 Factors!") [Reggae Validate (@ "(19 | 20) \ D {2} $", MessageTemplate = "Anil Trebui Sa Efi Valid!", Rullet = "Valid_an")] Public Entrepreneurship {Received; Set; }  

and in a test method:

  public {anUnivBO} = {AnUnivBO} {anStart = 2009} }; Validation result vr = validation Validate & lt; AnUnivBO & gt; (Target, "valid_an"); Assert.IsTrue (vr.IsValid); }  

Why is this unsuccessful?

String property for RegexValidator, not an integer, to do one thing:

  public string anStart {get; Set; }  

In your testing method, you will need to use it:

  AnUnivBO target = new ANUNIBO () {anStart = "2009"};  

To continue using an integer:

  [range evaluator (1900, rangeboundary type .institute, 2099, rangeboundary type. ] Receive public antentext analysis { Set; )