Publish your web application using visual studio .net

Publishing the web application provides a measure of protection for your intellectual property and makes it more difficult for others to access the source code of your site. When you published your web application, then every .cs file convert into dll and .aspx file that are using these files automatically got reference to these dll. You can publish your web application to a local or shared folder, to an FTP site, or to a Web site that you access by using a URL.
To publish a Web application

1. In the Build menu, click Publish ProjectName.
   
   
   
   
   
   OR
   Right Click on web application in Solution explorer.
   
   
Choose "Publish website" Option.
2. Click the ellipsis button (…) to browse to the location that you want to publish the Web application  to.
   
   
   
   
   
3. Select the Replace matching files with local copies check box or the Delete all existing files prior to publish check box.
4. Select how you want to copy the Web application project files to the new location by using Only files needed to run this application, All project files, or All files in the source project folder.
   You can include files from the App_Data folder by selecting the corresponding check box.
5. Click OK to publish the Web application project.
   In the task bar, Publish succeeded is displayed when publishing has finished.