access a public function from another .aspx file

i have 2 aspx files . I need to access a public function in b.aspx from a.aspx. How can i do that in asp.net using C#

My function from a.aspx is the following:

<script language="C#" runat="server">
       public String user()
        {
          return l1.Text;
       开发者_开发百科 }
</script>

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Ideally, don't. Don't put common logic in aspx files - put it in other classes which both pages can access. Code in a page should only be about displaying that page.

Don't forget that when you're displaying b.aspx, there is no instance of page a, logically. You could create a new one, but if you're trying to get the value of a label which was displayed previously to a user, or something like that, this could go badly wrong.

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@Sir Jon says,Create a new Class for Properites

public class UserEntity()
{
    public UserEntity(string user)
       {
         User = user;
       }
      public UserEntity()
       {
       }
    public string User { get;set;}
}

then use and pass it on your pages:

   var ent = new UserEntity();
   ent.User = li.Text

Regards

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While that's not an everyday task, it's still possible.

You could use cross-page posting, and then access the properties of the first page. The MSDN article Cross-Page Posting in ASP.NET Web Pages describes it.