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Title:
How to check this validaion?
I have following requirement
I have one database field whose contents are either all letters are all digits. how could i check this validaion. Please help.
i.e.
example 1
lcString = 'ABCD'
this is valid string because all characters are lettes. but if it is 'ABC1' then it is not valid because 1 inside string is not letter.
example 2
lcString = '1234'
this is valid string because all characters are digits. but if it is
'12a4' then it is not valid because 'a' inside string is not digit.
I have checked IsAlpha() and IsDigit() functions but i don't think they will be useful here. Please help me how could i check above validation and ensure that it is valid string.
Thanks for your help in advance.
Mark
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