Please see my question. I hope you can decide to work without non-standard things like "14th".
You don't really need to use Regular Expressions. It will be way more reliable method to parse string as a date or time structure. In case of success, it's valid; if parsing fails, it is not. Very simple.
On client side, it will be JavaScript like this:
function IsValidDate(dateString) {
return !isNaN(Date.parse(dateString));
}
On server side, you need to do the same thing using
System.DateTime methods
Parse or
ParseExact. Unlike JavaScript, you will need to supply input string in exact format corresponding to required culture information (
IFormatProvider) and/or format specifiers; but for
Parse method, there are variants: date only, time only, both, and the culture should correspond current thread culture.
Besides, you need to call such method in the try-catch block as it can catch exception. For example:
static bool IsValidDate(string value) {
try {
System.DateTime.Parse(value);
return true;
} catch(System.FormatException) {
return false;
}
}
Please see:
http://msdn.microsoft.com/en-us/library/system.datetime.aspx[
^].
For time string formats, please see:
http://msdn.microsoft.com/en-us/library/az4se3k1.aspx[
^],
http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx[
^].
—SA
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