任意List 和DatabTable的转换

 public static IEnumerable<T> ToEntityList<T>(this DataTable table) where T : class

        {

            var entityList = new List<T>();

            if (table != null && table.Rows.Count > 0)

            {

                foreach (DataRow dr in table.Rows)

                {

                    var entity = (T)Activator.CreateInstance(typeof(T));

                    for (int i = 0; i < dr.Table.Columns.Count; i++)

                    {

                        PropertyInfo propertyInfo = entity.GetType().GetProperty(dr.Table.Columns[i].ColumnName);

                        if (propertyInfo != null && dr[i] != DBNull.Value)

                        {

                            propertyInfo.SetValue(entity, dr[i], null);

                        }

                    }

                    entityList.Add(entity);

                }

            }

            return entityList;

        }