How to specify password policy to a textbox control



To validate the textbox control with some specific digit in C# coding for a Windows Application is the main object of this article. User must be instructed to type password in A-Z, a-z, 0-9 and special character as password/secret code.

Password is secret code or string of characters which is applied to authenticate the identity of user in a system. It is very ancient mechanism to protect system from unauthorized access by using secret code. In order select the password character or digit, most of organization follow some rules and regulation with some password policy.

Here I have given an example for a password validation code snippet by using very simple and basic common algorithm through textbox control in C#. In this rules of password validation, you are allowed to type any alphabet, numeric and special characters as password value.
For more please click on below link:

http://www.dotnetspider.com/resources/45142-How-validate-string-textbox-control-password-C.aspx