public static void Boxing()
{
var a = new CustomStruct();
// This will box CustomStruct, so this method should fail when compiling
a.GetType();
}
static void Main(string[] args)
{
var dataTable = new DataTable();
dataTable.Columns.Add("ABC", typeof(string));
var a = new CustomStruct()
{
IntValue = 1, DataTable = dataTable
};
Console.WriteLine("IsValueType: {0}", a.GetType().IsValueType);
Console.WriteLine();
var b = a;
a.IntValue = 2;
a.DataTable.Columns.Add("DEF", typeof(int));
Console.WriteLine("a.IntValue: {0}", a.IntValue);
Console.WriteLine("a.DataTable.Columns.Count: {0}", a.DataTable.Columns.Count);
Console.WriteLine();
Console.WriteLine("b.IntValue: {0}", b.IntValue);
Console.WriteLine("b.DataTable.Columns.Count: {0}", b.DataTable.Columns.Count);
}