Hi SUJAYS,

Refer below article.

Encrypt and Decrypt Connection String in App.Config file

I tried this but its not working as I am using like this connection string.

   ss1v1Entities dbContext = new ss1v1Entities ();

  <connectionStrings>
   
    <add name="yaapiyalv1Entities" connectionString="metadata=res://*/YZV1Models.csdl|res://*/YZV1Models.ssdl|res://*/YZV1Models.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=DESKTOP-ss;user id=sa;Password=543;initial catalog=yaapiyalv1;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework&quot;"
      providerName="System.Data.EntityClient" />
  </connectionStrings>

Refer below link.

https://scottstoecker.wordpress.com/2017/06/28/encrypting-the-connection-string-for-entity-framework/