How do I set the first screen when I run the web?

[patrick]

Question1) How do I set the first screen when I run the web?

Question2) Is Default.aspx file necessary to run ASP.NET Web?
Is Default.aspx file itself necessary to run the Web?

 

[Skydiver]

It is not needed if your users have direct links to your pages. If you want them to use your web site like a regular modern website where they browse around from a landing page, you would set up a default document: default.aspx, default.htm, default.html, index.aspx, index.htm, index.html, or whatever else you may decide to set in IIS as the default document.