c# - Using DataAnnotations with Regular Expressions to not Match -
is possible dataannotations , regular expressions filter entry in text box ? i.e. trigger invalid response when word "apt" in string ?
yes can using negative look-arounds, this:
public class mymodel { [regularexpression(@"^((?!apt).)*$", errormessage = "you can not have that")] public string myvalue { get; set; } }
here reference question these types of regular expressions.
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