Permission of page for Special Windows Account in ASP.NET

I have report page report.aspx 开发者_如何学编程in my company. And i want just special windows account can use this report.

For example;

AA, BB, CC, DD is our 4 different Windows Account Name in our Active Directory.

We want to use this report just 4 users. Other users want to access this report page should give an error message. (Like: You have no permission)

How can i do that?

Should i write some code in Page_Load() ?

This should be accomplished by modifying the web.config file as is shown in this article Limit file access to specific users in IIS

EDIT: You may need to setup the default authorization for the site similar to this:

<configuration>
    <system.web>
        <authentication mode="Windows"/>
        <authorization>
            <deny users="?" />
            <allow users="*" />
        </authorization>
    </system.web>
    <location path="report.aspx">
        <system.web>
            <authorization>
                <allow users="AA,BB,CC,DD" />
            </authorization>
        </system.web>
    </location>
</configuration>

There are some cases where the order of items in the file does matter so I would put the Location elements after the System.Web element to make sure that it initializes the Authentication/Authorization for the site before it does for specific pages.