Default.aspx.cs

using System;
using DevExpress.Web.ASPxPivotGrid;
using DevExpress.XtraPivotGrid;
using System.Data;

public partial class _Default : System.Web.UI.Page {
    protected void Page_Load(object sender, EventArgs e) {
        ASPxPivotGrid1.DataSource = GetData();
    }

    DataTable GetData()
    {
        DataTable dt = new DataTable();
        Random rnd = new Random();
        dt.Columns.Add("RowGroup", typeof(string));
        dt.Columns.Add("Row", typeof(string));
        dt.Columns.Add("ColumnGroup", typeof(string));
        dt.Columns.Add("Column", typeof(string));
        dt.Columns.Add("Data", typeof(int));
        for (int rowGroup = 1; rowGroup < 5; rowGroup++)
            for (int row = 1; row < 5; row++)
                for (int columnGroup = 1; columnGroup < 5; columnGroup++)
                    for (int column = 1; column < 5; column++)
                        dt.Rows.Add(
                            "Row Group" + rowGroup,
                            "Row" + row,
                            "Column Group" + columnGroup,
                            "Column" + column,
                            rnd.Next(100));
        return dt;
    }
}