how to allow only particular user to access website and deny all other users in ASP.NET?

Question

This example shows you how to check given input contains only numbers (digits) or not using regular expression in asp.net and c#.

Regular expression
string strRegexpNumber = @"^[0-9 ]*$";

Answer 1

In this situation we need to write the code like this

<configuration>
<system.web>
<authentication mode="Forms"/>
<authorization>
<deny users="?"/>  <!--This will restrict anonymous user access-->
</authorization>
</system.web>
<location path="Registration.aspx"> <!-- Path of your Registration.aspx page -->
<system.web>
<authorization>
<allow users="*"/> <!-- This will allow users to access to everyone to Registeration.aspx-->
</authorization>
</system.web>
</location>
</configuration>

Comments

For additional information refer this link:http://weblogs.asp.net/gurusarkar/setting-authorization-rules-for-a-particular-page-or-folder-in-web-config