Your application runs but no data is displayed. Common examples of this are:
Table Report pages display no data.
Add Record or Edit Record page may display empty dropdowns.
Table Report panels are empty but the correct number of records is displayed in the pagination control.
These cases typically occur when your application has lost or cannot connect to the underlying databases. The application may appear to run, but no actual data is displayed within the web pages.
There are several reasons why a newly created application won’t display data.
Cannot Connect to Your Database
Database Permission Settings or Path Are Not Configured Properly
Localhost is Not Properly Configured
Virtual Directory on Microsoft IIS Does Not Allow Anonymous Access
ASP.NET User Does Not Have Permissions to Your Application Folder
.NET Framework Mismatched with Application
Improper Application Deployment
ASPX (HTML) is Displayed Instead of Your Application
Buttons or Pagination Controls Do Not Work
Username and Password are Required to Run an Application
Application Times Out, Forcing Users to Sign In Again
Incorrect Page Redirection Behavior
Filter Controls Appear Above Other Controls