Converting objects or arrays of objects to DataTables

using System;

using System.Data;

using System.Reflection;

using System.Reflection.Emit;

namespace ObjToAdo

{

        /// <summary>

        /// Summary description for Converter.

        /// </summary>

        public class Converter

        {

                private Converter()     {}

                /// <summary>

                ///

                /// </summary>

                /// <param name="o"></param>

                /// <returns></returns>

                public static DataTable ConvertToDataTable(Object o)

                {      

                        PropertyInfo[] properties = o.GetType().GetProperties();

                        DataTable dt = CreateDataTable(properties);

                        FillData(properties, dt, o);

                        return dt;

                }

                /// <summary>

                ///

                /// </summary>

                /// <param name="o"></param>

                /// <returns></returns>

                public static DataTable ConvertToDataTable(Object[] array)

                {

                        PropertyInfo[] properties = array.GetType().GetElementType().GetProperties();

                        DataTable dt = CreateDataTable(properties);

                        if (array.Length != 0)

                        {

                                foreach(object o in array)

                                        FillData(properties, dt, o);

                        }

                        return dt;

                }

                /// <summary>

                ///

                /// </summary>

                /// <param name="properties"></param>

                /// <returns></returns>

                private static DataTable CreateDataTable(PropertyInfo[] properties)

                {

                        DataTable dt = new DataTable();

                        DataColumn dc = null;

                        foreach(PropertyInfo pi in properties)

                        {

                                dc = new DataColumn();

                                dc.ColumnName = pi.Name;

                                dc.DataType = pi.PropertyType;

                               

                                dt.Columns.Add(dc);                            

                        }

                        return dt;

                }

                /// <summary>

                ///

                /// </summary>

                /// <param name="properties"></param>

                /// <param name="dt"></param>

                /// <param name="o"></param>

                private static void FillData(PropertyInfo[] properties, DataTable dt, Object o)

                {

                        DataRow dr = dt.NewRow();

                        foreach(PropertyInfo pi in properties)

                                dr[pi.Name] = pi.GetValue(o, null);

                        dt.Rows.Add(dr);       

                }

        }

}

 reference:http://weblogs.asp.net/psperanza/archive/2005/05/18/407389.aspx