var flexGrid = new C1.Win.FlexGrid.C1FlexGrid();
flexGrid.Transposed = true;

public void Initialize()
{
    //オブジェクトを初期化します...
    C1FlexGrid c1FlexGrid1 = new C1.Win.FlexGrid.C1FlexGrid(); 
    
    //データを挿入します...
    c1FlexGrid1.DataSource = Enumerable.Range(0, 100).Select(x => new Product()).ToList();
    
    //転置します...
    c1FlexGrid1.Transposed = true; 
}

public class Product
{
       static Random _rnd = new Random();
       static string[] _names = "Macko|Surfair|Pocohey|Studeby".Split('|');
       static string[] _lines = "Computers|Washers|Stoves|Cars".Split('|');
       static string[] _colors = "Red|Green|Blue|White".Split('|');
            
       public Product()
       {
            Name = _names[_rnd.Next() % _names.Length];
            Line = _lines[_rnd.Next() % _lines.Length];
            Color = _colors[_rnd.Next() % _colors.Length];
            Price = 30 + _rnd.NextDouble() * 1000;
            Cost = 3 + _rnd.NextDouble() * 300;
            Discontinued = _rnd.NextDouble() < .2;
            Introduced = DateTime.Today.AddDays(_rnd.Next(-600, 0));
       }
    
       public string Name { get; set; }
       public string Color { get; set; }
       public string Line { get; set; }
       public double Price { get; set; }
       public double Cost { get; set; }
       public DateTime Introduced { get; set; }
       public bool Discontinued { get; set; }
}