C＃-正则表达式无法按预期工作

Question

I have written the following Regular Expression.

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString =@"(\<\![a-b]+\!\>)+") ]

It is to match the string

<!abc!>

The whole string is required.

But this particular expression matches up even with < only. and <! too.

Can someone pls correct it if I have done it wrong ?

Answer 1

You are escaping things that you should not, and you did not include c in your range. Here is a correct RegEx:

<![a-c]+!>

Tip: Check out http://regexr.com/ It is a great (free) online tool for testing, and learning about, RegEx's.