regex - Add spacebar in regular expression -


this question has answer here:

i use regular expression checking

public const string fullnameregularexpression = @"^[a-za-z0-9._-]+$";

how add "spacebar" in?

if looking 1 single space is: (" "), complete example can found in reference.

or if want match whitespace character (\n,\r,\f,\t, ), can use \s.


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