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

SomeOfCSharpFeatures/PropertiesIndexersRefOut/Program.cs

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+using PropertiesIndexersRefOut;
+
+Triple t1 = new Triple
+{
+  First = 456,
+  Second = 789
+};
+
+Triple t2 = new Triple
+{
+  First = 1000,
+  Second = 2000
+};
+
+Console.WriteLine("t1 + t2 = " + (t1 + t2));
+
+CreateRandomTriple(t1, ref t2, out Triple t3);
+
+Console.WriteLine("t1 = " + t1);
+Console.WriteLine("t2 = " + t2);
+Console.WriteLine("t3 = " + t3);
+
+Console.WriteLine(t1["A", 1]);
+Console.WriteLine(t1["B", 2]);
+Console.WriteLine(t1["B", 3]);
+
+PrintTriples(t1, t2, t3);
+
+void PrintTriples(params Triple[] triples)
+{
+  foreach (var t in triples)
+  {
+    Console.WriteLine(t);
+  }
+}
+
+void CreateRandomTriple(Triple t1, ref Triple t2, out Triple t3)
+{
+  Random r = new Random();
+  t3 = new Triple
+  {
+    First = r.Next(t1.First, t2.Second),
+    Second = r.Next(maxValue: t2.Second, minValue: t1.First)
+  };
+
+  t1 = t3;
+  t2 = t3;
+}