将实体转换成具有相同结构的DataTable

/// <summary>
/// 将实体转换成具有相同结构的DataTable
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="model">要转换的实体</param>
/// <returns></returns>
public static DataTable ToDataTable<T>(T model)
{
//检查实体集合不能为空
if (model == null)
{
throw new Exception("需转换的集合为空");
}
//取出第一个实体的所有Propertie
Type entityType = model.GetType();
PropertyInfo[] entityProperties = entityType.GetProperties();

//生成DataTable的structure
//生产代码中，应将生成的DataTable结构Cache起来，此处略
DataTable dt = new DataTable();
for (int i = 0; i<entityProperties.Length; i++)
{
dt.Columns.Add(entityProperties[i].Name, entityProperties[i].GetType());
}
return dt;
}