Password Must contain 1 numeric and 5 alphabets

Hi,

you can make use of regular expressions
refer
7 Regular Expressions a C# Developer Must Know[^]
Using Regular Expressions in C# .NET[^]

try with below expression.

^.*(?=.{6,})(?=.\d)(?=.{5,}[a-z,A-Z]).*$ 

above expression validate for, 1 numeric, 5 alphabets and maximum 6 characters.

hope it helps.

As an alternative to regulare expressions. A simple approach would be:

1. validate length: if password is too short or too long, reject it
2. validate characters

Further details for point 2:
set num_count = 0, alpha_count = 0, then, for each character of the password, if

• it is a numeric character, increment num_count
• it is an alphabetic character, increment alpha_count

at the end of the loop, if num_count is not equal to 1 or alpha_count is not equal to 5 then reject the password.