PI06 i PI06-1. Docker definitions for MSSQL and Postgres. Data seeder/generator for countries and people. Entity Framework example with variants for Postgres and MSSQL

DefensiveProgramming/Using/Program.cs

@@ -0,0 +1,20 @@
+using Using;
+
+try
+{
+  C a1 = new C("A1");
+
+  using (C b2 = new C("B2"))
+  using (C d4 = new C("D4"))
+  {
+    C c3 = new C("C3");
+    throw new Exception("It is time for an exception");
+  }
+  a1.Dispose();
+}
+catch (Exception exc)
+{
+  Console.WriteLine("Exc: " + exc.Message);
+  //throw exc;
+  //throw;
+}