转：http://www.cnblogs.com/the7stroke/archive/2012/04/22/2465591.html
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Reflection;
namespace System.Data
{
public static class DataTableHelper
{
#region 利用反射把DataTable的数据写到单个实体类
public static T ToSingleEntity<T>(this System.Data.DataTable dtSource)
{
if (dtSource == null)
{
return default(T);
}
if (dtSource.Rows.Count != 0)
{
Type type = typeof(T);
Object entity = Activator.CreateInstance(type); //创建实例
foreach (PropertyInfo entityCols in type.GetProperties())
{
if (!string.IsNullOrEmpty(dtSource.Rows[0][entityCols.Name].ToString()))
{
entityCols.SetValue(entity, Convert.ChangeType(dtSource.Rows[0][entityCols.Name], entityCols.PropertyType), null);
}
}
return (T)entity;
}
return default(T);
}
#endregion
#region 利用反射把DataTable的数据写到集合实体类里
public static List<T> ToListEntity<T>(this System.Data.DataTable dtSource)
{
if (dtSource == null)
{
return null;
}
List<T> list = new List<T>();
Type type = typeof(T);
foreach (DataRow dataRow in dtSource.Rows)
{
Object entity = Activator.CreateInstance(type); //创建实例
foreach (PropertyInfo entityCols in type.GetProperties())
{
if (!string.IsNullOrEmpty(dataRow[entityCols.Name].ToString()))
{
entityCols.SetValue(entity, Convert.ChangeType(dataRow[entityCols.Name], entityCols.PropertyType), null);
}
}
list.Add((T)entity);
}
return list;
}
#endregion
}
}